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Partager le résultat de cette recherche Interroger des sources externesCaractérisation du pouvoir entartrant des eaux dures et inhibition du tartre par voie électrochimique et chimique. / Rayane Menzri ép Louaira
Titre : Caractérisation du pouvoir entartrant des eaux dures et inhibition du tartre par voie électrochimique et chimique. Type de document : texte imprimé Auteurs : Rayane Menzri ép Louaira, Auteur ; Samira Ghizellaoui, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2019 Importance : 209 f. Format : 30 cm. Note générale : Doctorat 3éme CYCLE LMD.
2 copies imprimées disponiblesLangues : Français (fre) Catégories : Français - Anglais
ChimieTags : Chimie: Chimie Analytique et Environnement Carbonate de calcium Traitement antitartre MgCl2 RPI2000 (polyacrylate) RS1600 (vitamines B1 et B6) Chronoampérométrie Impédancemétrie Méthode chimique IR RX Raman MEB Antiscaling treatment RS1600 (vitamins B1 and B6) Chronoamperometry Impedancemetry Chemical method SEM كربونات الكالسيوم العلاج المضاد للتكلس التقنية الكهروكيميائية للتكلس السريع تقنية قياس المقاومة الأشعة تحت الحمراء الأشعة السينية رامان الطيفي الميكروسكوب الالكتروني للمسح
RS1600(فيتامينات B1 و B6)Index. décimale : 540 Chimie et sciences connexes Résumé :
The ground water Hamma rich in calcium and bicarbonate likely to deposit the tartar and
subsequently lead to the obstruction of the pipes and the seizing of the stopping devices in addition to the financial losses resulting therefrom. It is therefore necessary to optimise an antiscaling treatment in order to avoid the risk of formation of tartar deposits in the various installations, and to protect the equipment in contact with this water. Three chemical inhibitors were tested: MgCl2, polyacrylate, and RS1600. The latter is a new green inhibitor that would allow the formation of tartar to be delayed. It is a mixture of vitamins B1 and B6 with a percentage of 50 % for each. To optimise the effective concentration of each product, we used two electrochemical methods (chronoamperometry and impedance) and three chemical methods (rapid controlled precipitation, the technique of degassing CO2 by agitation and technique of CO2 degassing by nitrogen sparge) to identify the best inhibitor and the best method for optimizing antiscaling treatment by chemical inhibition. The results obtained showed that the method of precipitation of calcium carbonate by degassing CO2 by agitation is the most effective method because the coefficient of oversaturation that is reached is closer to the real case avoiding thereafter the overestimation of inhibitors. This study also showed that it is possible to classify the chemical inhibitors according to their efficacy against the formation of calcium carbonate. All methods used revealed that RPI2000 is the most effective inhibitor. IR, RX, Raman spectroscopy, and SEM indicate that the raw waters of Hamma give precipitates in the form of calcite (the most stable form), with the presence of a small amount of magnesian calcite and aragonite. In the presence of the three inhibitors, calcium carbonate changes morphology to other forms that do not exist in the deposit obtained from the raw water (vaterite and calcium carbonate monohydrate).
Note de contenu :
Annexes.Diplôme : Doctorat En ligne : ../theses/chimie/MEN7512.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11348 Caractérisation du pouvoir entartrant des eaux dures et inhibition du tartre par voie électrochimique et chimique. [texte imprimé] / Rayane Menzri ép Louaira, Auteur ; Samira Ghizellaoui, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2019 . - 209 f. ; 30 cm.
Doctorat 3éme CYCLE LMD.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ChimieTags : Chimie: Chimie Analytique et Environnement Carbonate de calcium Traitement antitartre MgCl2 RPI2000 (polyacrylate) RS1600 (vitamines B1 et B6) Chronoampérométrie Impédancemétrie Méthode chimique IR RX Raman MEB Antiscaling treatment RS1600 (vitamins B1 and B6) Chronoamperometry Impedancemetry Chemical method SEM كربونات الكالسيوم العلاج المضاد للتكلس التقنية الكهروكيميائية للتكلس السريع تقنية قياس المقاومة الأشعة تحت الحمراء الأشعة السينية رامان الطيفي الميكروسكوب الالكتروني للمسح
RS1600(فيتامينات B1 و B6)Index. décimale : 540 Chimie et sciences connexes Résumé :
The ground water Hamma rich in calcium and bicarbonate likely to deposit the tartar and
subsequently lead to the obstruction of the pipes and the seizing of the stopping devices in addition to the financial losses resulting therefrom. It is therefore necessary to optimise an antiscaling treatment in order to avoid the risk of formation of tartar deposits in the various installations, and to protect the equipment in contact with this water. Three chemical inhibitors were tested: MgCl2, polyacrylate, and RS1600. The latter is a new green inhibitor that would allow the formation of tartar to be delayed. It is a mixture of vitamins B1 and B6 with a percentage of 50 % for each. To optimise the effective concentration of each product, we used two electrochemical methods (chronoamperometry and impedance) and three chemical methods (rapid controlled precipitation, the technique of degassing CO2 by agitation and technique of CO2 degassing by nitrogen sparge) to identify the best inhibitor and the best method for optimizing antiscaling treatment by chemical inhibition. The results obtained showed that the method of precipitation of calcium carbonate by degassing CO2 by agitation is the most effective method because the coefficient of oversaturation that is reached is closer to the real case avoiding thereafter the overestimation of inhibitors. This study also showed that it is possible to classify the chemical inhibitors according to their efficacy against the formation of calcium carbonate. All methods used revealed that RPI2000 is the most effective inhibitor. IR, RX, Raman spectroscopy, and SEM indicate that the raw waters of Hamma give precipitates in the form of calcite (the most stable form), with the presence of a small amount of magnesian calcite and aragonite. In the presence of the three inhibitors, calcium carbonate changes morphology to other forms that do not exist in the deposit obtained from the raw water (vaterite and calcium carbonate monohydrate).
Note de contenu :
Annexes.Diplôme : Doctorat En ligne : ../theses/chimie/MEN7512.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11348 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité MEN/7412 MEN/7412 Thèse Bibliothèque principale Thèses Disponible
Titre : Etude des méthodes d'évaluation et d'inhibition du pouvoir incrustant des eaux dures Type de document : texte imprimé Auteurs : Hadda Semine ras, Auteur ; Samira Ghizellaoui, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 218 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
ChimieTags : Entartrage CaCO3 inhibition K2HPO4 K 3PO4 tripolyphosphates (STTP) chronoampérométrie chronoélectrogravimétrie impédancemétrie PCR RX Raman Scaling K3PO4 chroamperometry chronoelectrogravimetry impedancemetry FCP تكلس كربونات الكالسيوم تثبيط STTP K2HPO4كرونوامبيرمترية،
كرونوكهروكتلية المقاومة الكهروكيميائية الترسيب السريع المراقب الاشعة السينية طيف رامانIndex. décimale : 540 Chimie et sciences connexes Résumé : The precipitation of an insulating layer of calcium carbonate on the walls of the water distribution of Hamma and Fourchi have serious consequences technique and economic , reduced heat transfer in heat exchangers, limit the efficiency of these devices (valves and taps) by decreasing the flow rate in the pipes.
The objective of this study is the inhibition of the scaling capacity of domestic and industrial hard water for Hamma and Fourchi in the presence of K2HPO4 and K3PO4 and STTP. Various processes (electrochemical and chemical) are used.
The study of the evaluation of the encrusting power of its waters was carried out by means of chronoamperometry which is based on the reduction of dissolved oxygen and showed that these waters are very scaling. To combat hard water scaling, we have shown that it is sufficient to add low concentrations of inhibitors (K2HPO4, K3PO4, Polyphosphates) in order to obtain a total inhibition of the precipitation of the calcium carbonate.
It is possible to determine by the chronoelectrogravimetric (depending on the mass of the calcium carbonate as a function of time) the amount of inhibitor to be added in order to obtain the total inhibition of the calcium carbonate deposition. K2HPO4, K3PO4 and tripolyphosphates (STTP) appear as inhibitors particularly well suited to hard waters.
Electrochemical Impedance Spectroscopy (EIS) is used to characterize the adhesion and compactness of calcium carbonate deposition on a metal surface by measuring the high frequency resistance (Rhf) and the high frequency capacitance (Chf).
The addition of the three inhibitors (K2HPO4, K3PO4 and tripolyphosphates STTP) resulted in a decrease in high frequency resistance and the high frequency capacity increased. This reflects the porous nature of the deposit and the effectiveness of the scaling inhibitors K2HPO4 and K3PO4 and tripolyphosphates STTP.
The Fast Controlled Precipitation test (FCP) developed by LEDION et al. (1997), in the presence of K2HPO4, K3PO4 and tripolyphosphate (STTP) at low concentrations, delayed precipitation of calcium carbonate.
The analysis of calcium carbonate deposition by (RX, Raman) changes the morphology of calcite in raw water to a mixture of (calcite, vaterite and aragonite). Among the inhibitors studied, STTP remains the best inhibitor because it acts at a very low concentration by blocking the (germination-growth) of calcium carbonate.
Diplôme : Doctorat en sciences En ligne : ../theses/chimie/SEM7263.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10860 Etude des méthodes d'évaluation et d'inhibition du pouvoir incrustant des eaux dures [texte imprimé] / Hadda Semine ras, Auteur ; Samira Ghizellaoui, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2018 . - 218 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ChimieTags : Entartrage CaCO3 inhibition K2HPO4 K 3PO4 tripolyphosphates (STTP) chronoampérométrie chronoélectrogravimétrie impédancemétrie PCR RX Raman Scaling K3PO4 chroamperometry chronoelectrogravimetry impedancemetry FCP تكلس كربونات الكالسيوم تثبيط STTP K2HPO4كرونوامبيرمترية،
كرونوكهروكتلية المقاومة الكهروكيميائية الترسيب السريع المراقب الاشعة السينية طيف رامانIndex. décimale : 540 Chimie et sciences connexes Résumé : The precipitation of an insulating layer of calcium carbonate on the walls of the water distribution of Hamma and Fourchi have serious consequences technique and economic , reduced heat transfer in heat exchangers, limit the efficiency of these devices (valves and taps) by decreasing the flow rate in the pipes.
The objective of this study is the inhibition of the scaling capacity of domestic and industrial hard water for Hamma and Fourchi in the presence of K2HPO4 and K3PO4 and STTP. Various processes (electrochemical and chemical) are used.
The study of the evaluation of the encrusting power of its waters was carried out by means of chronoamperometry which is based on the reduction of dissolved oxygen and showed that these waters are very scaling. To combat hard water scaling, we have shown that it is sufficient to add low concentrations of inhibitors (K2HPO4, K3PO4, Polyphosphates) in order to obtain a total inhibition of the precipitation of the calcium carbonate.
It is possible to determine by the chronoelectrogravimetric (depending on the mass of the calcium carbonate as a function of time) the amount of inhibitor to be added in order to obtain the total inhibition of the calcium carbonate deposition. K2HPO4, K3PO4 and tripolyphosphates (STTP) appear as inhibitors particularly well suited to hard waters.
Electrochemical Impedance Spectroscopy (EIS) is used to characterize the adhesion and compactness of calcium carbonate deposition on a metal surface by measuring the high frequency resistance (Rhf) and the high frequency capacitance (Chf).
The addition of the three inhibitors (K2HPO4, K3PO4 and tripolyphosphates STTP) resulted in a decrease in high frequency resistance and the high frequency capacity increased. This reflects the porous nature of the deposit and the effectiveness of the scaling inhibitors K2HPO4 and K3PO4 and tripolyphosphates STTP.
The Fast Controlled Precipitation test (FCP) developed by LEDION et al. (1997), in the presence of K2HPO4, K3PO4 and tripolyphosphate (STTP) at low concentrations, delayed precipitation of calcium carbonate.
The analysis of calcium carbonate deposition by (RX, Raman) changes the morphology of calcite in raw water to a mixture of (calcite, vaterite and aragonite). Among the inhibitors studied, STTP remains the best inhibitor because it acts at a very low concentration by blocking the (germination-growth) of calcium carbonate.
Diplôme : Doctorat en sciences En ligne : ../theses/chimie/SEM7263.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10860 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité SEM/7263 SEM/7263 Thèse Bibliothèque principale Thèses Disponible
Titre : Caractérisation structurale et optique De nanocristaux de ZnO Type de document : texte imprimé Auteurs : Abdelghani Bouabdallah, Auteur ; Abderrahmane Chaieb, Directeur de thèse Editeur : constantine [Algérie] : Université Constantine 1 Année de publication : 2013 Importance : 62 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles Langues : Français (fre) Catégories : Français - Anglais
PhysiqueTags : Nano composite PMMA / ZnO les rayons X RX absorption optique émission optique- methode soi-gel spin coating X-rays X-ray optical absorption optical emission - so- gel method الامتصاص الضوئي الاتبعاث الفوتوضوئي طریقة صول-جال- RX الاشعة السینیة PMMA/ZNO رقائق نانو المركب Index. décimale : 530 Physique Résumé : This work to study the structural and optical ZnO nanocrystals
For the preparation of nano- zinc oxide was confused by Material:
LaCetate Zinc dihydrate , citric acid
For the preparation of nano ZnO by material : Zinc LaCetate dihydrate , citric acid
For the preparation of thin film nano composite material was :
, The nano ZnO powder , THF ( tetrahydrofuran ) , the léthanol PMMA After preparing thin layer were placed under a UV radiation Structural study of this course are made by thin film X-ray diffraction to determine the size of nanoscale crystals ZNO
Preliminary study using the optical absorption in the UV range of the following thin film showed absorption edge shift to higher energies and this is due to the small size of the nanocrystals ZNO The study by the program that the samples his boots intense emission in the , emission of visible and near UV makes this material prepared from the elements eligible for the use of applications in the field of optical and electrical .Diplôme : Magistère En ligne : ../theses/physique/BOU6464.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=9502 Caractérisation structurale et optique De nanocristaux de ZnO [texte imprimé] / Abdelghani Bouabdallah, Auteur ; Abderrahmane Chaieb, Directeur de thèse . - constantine [Algérie] : Université Constantine 1, 2013 . - 62 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
PhysiqueTags : Nano composite PMMA / ZnO les rayons X RX absorption optique émission optique- methode soi-gel spin coating X-rays X-ray optical absorption optical emission - so- gel method الامتصاص الضوئي الاتبعاث الفوتوضوئي طریقة صول-جال- RX الاشعة السینیة PMMA/ZNO رقائق نانو المركب Index. décimale : 530 Physique Résumé : This work to study the structural and optical ZnO nanocrystals
For the preparation of nano- zinc oxide was confused by Material:
LaCetate Zinc dihydrate , citric acid
For the preparation of nano ZnO by material : Zinc LaCetate dihydrate , citric acid
For the preparation of thin film nano composite material was :
, The nano ZnO powder , THF ( tetrahydrofuran ) , the léthanol PMMA After preparing thin layer were placed under a UV radiation Structural study of this course are made by thin film X-ray diffraction to determine the size of nanoscale crystals ZNO
Preliminary study using the optical absorption in the UV range of the following thin film showed absorption edge shift to higher energies and this is due to the small size of the nanocrystals ZNO The study by the program that the samples his boots intense emission in the , emission of visible and near UV makes this material prepared from the elements eligible for the use of applications in the field of optical and electrical .Diplôme : Magistère En ligne : ../theses/physique/BOU6464.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=9502 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/6464 BOU/6464 Thèse Bibliothèque principale Thèses Disponible Documents numériques
texte intégraleAdobe Acrobat PDF
Titre : Nouvelles ortho hydroxy bases de Schiff : Synthèse, structure et application. Type de document : texte imprimé Auteurs : Nabila Moussa Slimane, Auteur ; Aouatef Cherouana, Auteur Mention d'édition : 10/07/2019 Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2019 Importance : 186 f. Format : 30 cm. Note générale : 1 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
ChimieTags : Chimie inorganique: Cristallochimie Base de Schiff UV-visible infrarouge RX activité antibactérienne concentration minimale inhibitrice Schiff base infrared antibacterial activity minimum inhibitory
concentration قاعدة شيف الأشعة فوق البنفسجية المرئية الأشعة تحت الحمراء الأشعة السينية النشاط المضاد للبكتيريا التركيز المثبط الأدنىIndex. décimale : 540 Chimie et sciences connexes Résumé : Seven Schiff bases were synthesized and characterized by hysicochemical methods. The imines were prepared by the condensation of the amines: 2-aminiphenol, 2-amino-4- chlorophenol, 2-amino-4-tert-butylphenol and 3'-aminoacetophenone with the various substituted aromatic aldehydes. The imines synthesized were characterized by UV-visible, FT-IR and as well as by the diffraction of the X-rays. The Schiff bases L1, L2, L4 and L7, were screened for their antimicrobial activities against the following species: Escherichia coli, Salmonella typhimurium, Staphylococcus aureus and Proteus mirabilis. All the results obtained show that these products have an influence on the different bacteria, and have no effect on the proteus. A comparative study of minimum inhibitory concentration (MIC) values of the Schiff base indicates that the compound (L1) exhibit higher antibacterial activity than the other ligands.
Note de contenu : Annexes. Diplôme : Doctorat en sciences En ligne : ../theses/chimie/MOU7563.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11401 Nouvelles ortho hydroxy bases de Schiff : Synthèse, structure et application. [texte imprimé] / Nabila Moussa Slimane, Auteur ; Aouatef Cherouana, Auteur . - 10/07/2019 . - جامعة الإخوة منتوري قسنطينة, 2019 . - 186 f. ; 30 cm.
1 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ChimieTags : Chimie inorganique: Cristallochimie Base de Schiff UV-visible infrarouge RX activité antibactérienne concentration minimale inhibitrice Schiff base infrared antibacterial activity minimum inhibitory
concentration قاعدة شيف الأشعة فوق البنفسجية المرئية الأشعة تحت الحمراء الأشعة السينية النشاط المضاد للبكتيريا التركيز المثبط الأدنىIndex. décimale : 540 Chimie et sciences connexes Résumé : Seven Schiff bases were synthesized and characterized by hysicochemical methods. The imines were prepared by the condensation of the amines: 2-aminiphenol, 2-amino-4- chlorophenol, 2-amino-4-tert-butylphenol and 3'-aminoacetophenone with the various substituted aromatic aldehydes. The imines synthesized were characterized by UV-visible, FT-IR and as well as by the diffraction of the X-rays. The Schiff bases L1, L2, L4 and L7, were screened for their antimicrobial activities against the following species: Escherichia coli, Salmonella typhimurium, Staphylococcus aureus and Proteus mirabilis. All the results obtained show that these products have an influence on the different bacteria, and have no effect on the proteus. A comparative study of minimum inhibitory concentration (MIC) values of the Schiff base indicates that the compound (L1) exhibit higher antibacterial activity than the other ligands.
Note de contenu : Annexes. Diplôme : Doctorat en sciences En ligne : ../theses/chimie/MOU7563.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11401 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité MOU/7563 MOU/7563 Thèse Bibliothèque principale Thèses Disponible
Titre : Synthèse, réactivité et étude structurale des complexes organométallocarbonyles mononucléaires, marqueurs de molécules biologiquement actives Type de document : texte imprimé Auteurs : Salah Merniz, Auteur ; M. Mokhtari, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2015 Importance : 105 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
ChimieTags : Complexes fer carbonyle Marquage Activité antibactérienne FT-IR RX Carbonyl Iron complexes labelling Antibacterial activity معقد الحديد الكربونيلي نعين المضاد للبكتيريا، Index. décimale : 540 Chimie et sciences connexes Résumé : The objective of this work is the use of the organometallo-carbonyl as biological molecules markers. In fact, such molecules marked constitute easily detectable probes using IR spectroscopy because of the specific signals associated with the carbonyls ligands related to metal in the 1800-2200 cm-1 region.
In this domain, our contribution consists of the preparation and the structural study of new tricarbonyles iron obtained by covalent coupling between the cation [tricarbonyl (1-5-h- cyclohexa-1,3-diene) iron] tetrafluoroborate and the three biologically active molecules : the N-acetyl histamine, the imidazolidine-2-thione and the 2-aminothiazole. The labeled complexes have been purified and characterized by the spectroscopically (IR, RMN 1H)
methods.
Three complexes structure [Tricarbonyl (1-4-h–5- N-acetyl histaminio cyclohexa-1,3- diene) iron] 2, [Tricarbonyl (1-4-h-5-N-imidazolidinio-2-thione cyclohexa-1,3-diene) iron] 3 and [Tricarbonyl (1-4-h–5-N-2-aminothiazolio cyclohexa-1,3-diene) iron] 4 have been determined by X-ray crystallography revealing the exo enantiomer existence for 2 and for 4
and for dimer 3.
The biological activity of two free ligands imidazolidine-2-thione and the 2- aminothiazole showed an important antibacterial activity .After labeling them (3 and 4 respectively), this activity has decreased for the complex 3 and increased for the complex 4.
Diplôme : Doctorat en sciences En ligne : ../theses/chimie/MER6682.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=9945 Synthèse, réactivité et étude structurale des complexes organométallocarbonyles mononucléaires, marqueurs de molécules biologiquement actives [texte imprimé] / Salah Merniz, Auteur ; M. Mokhtari, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2015 . - 105 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ChimieTags : Complexes fer carbonyle Marquage Activité antibactérienne FT-IR RX Carbonyl Iron complexes labelling Antibacterial activity معقد الحديد الكربونيلي نعين المضاد للبكتيريا، Index. décimale : 540 Chimie et sciences connexes Résumé : The objective of this work is the use of the organometallo-carbonyl as biological molecules markers. In fact, such molecules marked constitute easily detectable probes using IR spectroscopy because of the specific signals associated with the carbonyls ligands related to metal in the 1800-2200 cm-1 region.
In this domain, our contribution consists of the preparation and the structural study of new tricarbonyles iron obtained by covalent coupling between the cation [tricarbonyl (1-5-h- cyclohexa-1,3-diene) iron] tetrafluoroborate and the three biologically active molecules : the N-acetyl histamine, the imidazolidine-2-thione and the 2-aminothiazole. The labeled complexes have been purified and characterized by the spectroscopically (IR, RMN 1H)
methods.
Three complexes structure [Tricarbonyl (1-4-h–5- N-acetyl histaminio cyclohexa-1,3- diene) iron] 2, [Tricarbonyl (1-4-h-5-N-imidazolidinio-2-thione cyclohexa-1,3-diene) iron] 3 and [Tricarbonyl (1-4-h–5-N-2-aminothiazolio cyclohexa-1,3-diene) iron] 4 have been determined by X-ray crystallography revealing the exo enantiomer existence for 2 and for 4
and for dimer 3.
The biological activity of two free ligands imidazolidine-2-thione and the 2- aminothiazole showed an important antibacterial activity .After labeling them (3 and 4 respectively), this activity has decreased for the complex 3 and increased for the complex 4.
Diplôme : Doctorat en sciences En ligne : ../theses/chimie/MER6682.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=9945 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité MER/6682 MER/6682 Thèse Bibliothèque principale Thèses Disponible
