Abstract
The adducts CuCl2?(3amt), CuCl2?2(3amt)?2H2O, CuCl2?3(3amt), CuCl2?(4amt), CuCl2?2(4amt), CuCl2?3(4amt)?2H2O, CuCl2?(2mct)?H2O, CuCl2?2(2mct)?2.5H2O, CuCl2?3(2mct)?2H2O, CuCl2?(2mcp) and CuCl2?2(2mcp)?H2O, where 3-amino-1,2,4-triazole = 3amt, 4-amino-1,2,4-triazole = 4amt, 2-mercaptothiazoline = 2mct and 2-mercaptopyridine = 2mcp, were synthesized by a solid state route and characterized by CHN elemental analysis and infrared spectroscopy. A thermogravimetric study was also performed. It was verified that 4amp is a molecule with a higher ability to act as a bridging ligand in comparison with 3amp. It was also found that, for all compounds, the mono adducts were the most thermally stable ones. Such a fact is in agreement with a higher ionic and covalent character of the metal-ligand bond in surch compounds. .
Adukti CuCl 2?(3amt), CuCl2?2(3amt)?2H2O, CuCl2?3(3amt), CuCl2?(4amt), CuCl2?2(4amt), CuCl2?3(4amt)?2H2O, CuCl2?(2mct)?H2O, CuCl2?2 (2mct)?2,5H2O, CuCl2?3 (2mct)?2H2O, CuCl2? (2mcp) i CuCl 2?2(2mcp)?H2O, gde je 3-amino-1,2,4-triazol = 3amt, 4-amino-1,2,4-triazol = 4amt, 2-merkaptotiazolin = 2mct i 2-merkaptopiridin = 2mcp su sintetisani postupkom u cvrstom stanju i okarakterisani C,H,N elementalnom analizom i infracrvenom spektroskopijom. Takodje je izvedeno termogravimetrijsko proucavanje. Potvrdjeno je da 4amp molekul ima izrazeniju teznju da bude mostovni ligand nego 3amp. Sem toga nadjeno je da su mono adukti za sva jedinjenja najstabilniji sa termicke tacke gledista. Ova cinjenica je saglasna sa vecim jonskim i kovalentnim karakterom metal-ligand veze za takva jedinjenja. .