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Title: Physicochemical studies of metal complexes with N and S donor ligands
Researcher: Ahmad Husain
Guide(s): Siddiqi, K S
Keywords: Chemistry
metal complexes
Upload Date: 11-Nov-2013
University: Aligarh Muslim University
Completed Date: 2011
Abstract: This thesis describes the physico-chemical studies of metal complexes with nitrogen and sulphur donor ligands. Emphasis has been given to the synthesis and characterization of polyazamacrocycles and dithiocarbamato complexes of transition metal ions and Sn(IV). They have been characterized by FT-IR, NMR (1H, 13C and 119Sn), mass spectrometry and X-ray crystallography. In some cases they have been studied by TGA/DSC. Some of the ligands and their complexes have been tested for their antibacterial and antifungal activity. The thesis is divided into six chapters. The first chapter highlights the major advances in the area of transition metal ions and Sn(IV) with polyazamacrocycles and dithiocarbamates. It explores various chemical and biological applications of polyazamacrocycles and dithiocarbamates in general. Chapter 2 describes the synthesis of fourteen membered hexaaza macrocyclic complexes of the type [CuL]X2 and [CuL1]X2 [where L= 3,10-bisbenzyl- 1,3,5,8,10,12-hexaazacyclotetradecane and L1 = 3,10-bisbenzyl-6,13-dimethyl- 1,3,5,8,10,12-hexaaza-cyclotetradecane and X = ClO4and#1050691; (1, 4) SCN¯(2) and PF6¯ (3, 5)]. These air stable monometallic complexes have been synthesized by template assisted condensation reaction and characterized by spectral and X-ray crystallographic techniques. An attempt has been made to study the effect of anions on the gross geometry and chemical properties of the Cu(II) ion. Their crystal structure show axially elongated octahedral geometry with weakly coordinated anions. The macrocyclic cyclam adopts trans-III configuration with six- and five-membered chelate rings in chair and gauche conformation, respectively. It was also observed that in the solid state the arrangement of the coordination sphere is distorted octahedral whereas in solution, a square-planar structure is predominant.
Pagination: 149p.
Appears in Departments:Department of Chemistry

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01_title.pdfAttached File69.24 kBAdobe PDFView/Open
02_certififcate.pdf138.51 kBAdobe PDFView/Open
03_acknowledgements.pdf74.95 kBAdobe PDFView/Open
04_dediacation.pdf101.82 kBAdobe PDFView/Open
05_list of publications.pdf145.24 kBAdobe PDFView/Open
06_abstract.pdf189.45 kBAdobe PDFView/Open
07_contents.pdf83.75 kBAdobe PDFView/Open
08_chapter 1.pdf899.43 kBAdobe PDFView/Open
09_chapter 2.pdf2.66 MBAdobe PDFView/Open
10_chapter 3.pdf2.05 MBAdobe PDFView/Open
11_chapter 4.pdf1.7 MBAdobe PDFView/Open
12_chapter 5.pdf681.96 kBAdobe PDFView/Open
13_chapter 6.pdf628.64 kBAdobe PDFView/Open
14_references.pdf151.83 kBAdobe PDFView/Open
15_publications.pdf2.2 MBAdobe PDFView/Open

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