Transition Metal Complexes of Dis(thiosemicarbazone): Synthesis and Spectral,and Antifungal Studies |
| |
| Authors: | Moamen S Refat Sulekh Chandra Monika Tyagi |
| |
| Institution: | 1. Department of Chemistry, Faculty of Science, Port-Said , Suez Canal University , Port-Said, Egypt;2. Department of Chemistry, Faculty of Science , Taif University , Taif, Kingdom of Saudi Arabia;3. Department of Chemistry , Zakir Husain College (University of Delhi) , JLN-Marg, New Delhi, India |
| |
| Abstract: | Mn(II), Co(II), Ni(II), and Cu(II) complexes have been synthesized with benzil bis(thiosemicarbazone) (L) and characterized by elemental analyses, molar conductance measurements, magnetic susceptibility measurements, thermogravimetric studies, infrared (IR), electronic, and electron paramagnetic resonance (eEPR) spectral studies. The molar conductance measurements of the complexes in DMF correspond to the non-electrolytic nature of the complexes. Thus these complexes may be formulated as M(L)X2] (where M = Mn(II), Co(II), Ni(II), Cu(II) and X = Cl? and NO3 ?). On the basis of IR, electronic, and EPR spectral studies, an octahedral geometry has been assigned for Mn(II), Co(II), and Ni(II) complexes, whereas a tetragonal geometry for the Cu(II) complexes is presumed. The free ligand and its metal complexes were tested against the phytopathogenic fungi (i.e., Rhizoctonia baticola, Alternaria alternata) in vitro. |
| |
| Keywords: | 1 3 4-Oxadiazole four-component reaction aza-wittig iminophosphorane heterocyclization |
|
|
