Thiocarbohydrazide as ``Diamine' to Construct Macrocyclic and Side-Off Compartmental Ligands |
| |
Authors: | Anil D Naik Satish M Annigeri Umesh B Gangadharmath Vidyanand K Revankar Vinayak B Mahale |
| |
Institution: | (1) Department of Chemistry, Karnatak University, Dharwad, 580 003, India |
| |
Abstract: | New dinuclear complexes of macrocycles/macroacycles/oximeshaving a reactive peripheral thioketo functional group were synthesized using2,6-diformyl-p-cresol as parent compound and thiocarbohydrazide/variousdiamines as side arms. Thioenolization and subsequent coordination to metal ionof the thio-keto sulfur is observed in asymmetric macrocycles and oxime complexes,while it is kept away from the coordination sphere in symmetric macrocycles. Magnetic susceptibility measurements over the range 7–300 K confirm that the copper(II) centersof the symmetric and asymmetric macrocycles are antiferromagnetically coupled, withvalues for the exchange coupling constant J through the phenolate oxygens of -610 to-580 cm-1, respectively. The ligands and their complexes are found to be excellent fungistatic agents. |
| |
Keywords: | bimetallic complexes macrocycles oximes side-off compartmental ligands thiocarbohydrazide |
本文献已被 SpringerLink 等数据库收录! |