Year: 2013
Type: article
Abstract: Nine new Pyrazine Complexes of diaryltelluriumdihalides, R 2 TeX 2 .Pyz (R =p-methoxyphenyl, p-hydroxyphenyl and 3-methyl-4-hydroxy phenyl; X=Cl, Br, I; Pyz = pyrazine) have been prepared by reactions of diaryltelluriumdihalides with pyrazine in 1:1 molar ratio.These complexes have been characterized by elemental analysis, conductance and cryoscopic measurements, infrared and proton magnetic resonance spectral studies.Conductance studies in nitrobenzene, acetone and acetonitrile predict their non-electrolyte type behaviour in these solvents, which is well supported by cryoscopic data in nitrobenzene.IR and 1 H NMR studies suggest the unidentate nature of pyrazine in these complexes, involving only one nitrogen atom in coordination.Thus, tellurium in R 2 TeX 2 .Pyz complexes attains a coordination number of five probably in a square pyramidal. Key words: Diaryltellurium dihalides,
Source: Oriental Journal Of Chemistry
DOI: 10.13005/ojc/290409
Authors: J Narwal, Shashi Chhabra, R Malik, Sapana Garg, K Verma
Institution: Maharshi Dayanand University
Language: English
Subfield: Organic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W2133434603