Self assembled homodinuclear dithiocarbamates: one pot synthesis and spectral characterization.
Several self assembled homodinuclear complexes of the type [M2(Ldtc)2·4H2O] derived from quadridentate ligand (Ldtc), where Ldtc = 2-aminobenzoylhydrazidebis(dithiocarbamate) and M = Mn(II), Fe(II), Co(II), Ni(II), Cu(II) and Zn(II) have been reported. The in situ procedure gives high yield with the formation of single product as evident by TLC and various other physicochemical techniques. Elemental analysis, TGA, (1)H NMR, (13)C NMR, ESI mass spectrometry, EPR, UV-vis. and IR spectroscopy were used to characterize the homodinuclear complexes. The spectroscopic evidences and room temperature magnetic moment values suggest that all the complexes have octahedral geometry around the transition metal atom. A symmetrical bidentate coordination of the dithiocarbamato moiety has been observed in all the complexes. The energy-minimized structure of the molecule also showed that each metal atom acquires a distorted octahedral geometry. The complexes exhibit a three-step thermolytic pattern and are non-electrolyte in nature.
Department of Kulliyat, Faculty of Unani Medicine, Aligarh Muslim University, Aligarh 202002, India. Electronic address: saanami.tc@amu.ac.in.
Shahab A A
SA
Nami
Ahmad
A
Husain
Irfan
I
Ullah
D000586:Amination; D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D004578:Electron Spin Resonance Spectroscopy; D006834:Hydrazines / Q000138:chemical synthesis / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D056004:Molecular Dynamics Simulation; D021241:Spectrometry, Mass, Electrospray Ionization; D013055:Spectrophotometry, Infrared; D013818:Thermogravimetry; D013859:Thiocarbamates / Q000138:chemical synthesis / Q000737:chemistry*; D028561:Transition Elements / Q000138:chemical synthesis / Q000737:chemistry*
D056831:Coordination Complexes; D006834:Hydrazines; D013859:Thiocarbamates; D028561:Transition Elements
2-Aminobenzohydrazide; Homodinuclear; Quadridentate ligand; Self assembled dithiocarbamate; Transition metal complexes