Crystal Structure of 2-thiophene-2-yl-3(thiophene-2-carboxylideneamino)-1, 2-dihydroquinazolin-4(3H)-one and the Synthesis, Spectral and Thermal Studies of its Transition Metal(II) Complexes |
| |
Authors: | Kalagouda B. Gudasi Ramesh S. Vadavi Rashmi V. Shenoy Siddappa A. Patil Munirathinam Nethaji |
| |
Affiliation: | (1) Department of Chemistry, Karnatak University, Dharwad, 580 003, India;(2) Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560 012, India |
| |
Abstract: | The synthesis of manganese(II), cobalt(II), nickel(II), copper(II), zinc(II) and cadmium(II) complexes of a new ligand 2-thiophene-2-yl-3(thiophene-2-carboxylidene-amino)-1,2-dihydroquinazolin-4(3H)-one (TTCADQ) is described. The ligand and metal complexes were characterized by elemental analysis, conductivity measurements, spectral (u.v.–vis., i.r., 1D n.m.r., 2D hetcor and e.p.r.) and thermal studies. The formation of 1,2-dihydroquinazolin-4(3H)-one rather than hydrazone, in the reaction of aromatic aldehyde and o-aminobenzoylhydrazide is proved by single crystal X-ray diffraction and 2D hetcor n.m.r. studies. On the basis of elemental analysis, u.v.–vis.spectroscopy and magnetic moment studies, six coordinate geometry for all the complexes was proposed. The i.r. spectral studies reveal the bidentate behaviour of the ligand. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|