S,S’-(2,6-Diaminopyridine-3,5-diyl)dibenzenecarbothioate was formed by condensing 2,6-diamino-3,5-dithiopyridine and benzoyl chloride in the presence of pyridine. AlsoS-benzyl benzenecarbothioate was prepared by the condensation of benzoyl chloride and phenylmethanethiol in the presence of pyridine. The complexes of these compounds were prepared using copper(II) and manganese(II) chloride salts. The thiolates were characterized on the basis of their electronic, infrared and NMR spectra whereas the complexes were characterized via electronic and infrared studies. The IR spectral studies indicate that the ligands coordinated through the carbonyl oxygen, the sulphur atom and also with the amino group in DBCT. Antimicrobial studies on the ligands and their complexes showed varying degrees of inhibition on the growth of the following microorganisms;Staphylococcus aureus(ATCC 25923),Pseudomonas aeruginosa(ATCC 27853),Bacillus subtilis(ATCC 6633) andCandida albicans(ATCC 2091). The compounds showed no activity againstEscherichia coli(ATCC 25922)
在
吡啶的存在下,2,6-二
氨基-3,5-二
硫代
吡啶和
苯甲酰氯缩合生成S,S'-(2,6-二
氨基吡啶-3,5-二基)二苯基羧
硫酸酯。同时,在
吡啶的存在下,
苯甲酰氯和苯基
甲硫醇缩合生成S-苄基二苯基羧
硫酸酯。这些化合物的配合物是使用
铜(II)和
锰(II)
氯化盐制备的。基于电子、红外和NMR光谱,
硫醇基团得到了表征,而配合物则通过电子和红外光谱研究进行了表征。红外光谱研究表明,
配体通过羰基氧、
硫原子以及DBCT的
氨基与
金属离子配位。对这些
配体及其配合物的抗菌研究显示,它们对以下微
生物的生长抑制程度不同:
金黄色葡萄球菌(A
TCC 25923)、
铜绿假单胞菌(A
TCC 27853)、
枯草芽孢杆菌(A
TCC 6633)和白色念珠菌(A
TCC 2091)。这些化合物对大肠杆菌(A
TCC 25922)无活性。