The interplay of secondary Te···N, Te···O, Te···I and I···I interactions, Te···π contacts and π-stacking in the supramolecular structures of [{2-(4-nitrobenzylideneamino)-5-methyl}phenyl](4-methoxyphenyl)tellurium dihalides
journal contribution
posted on 2005-03-01, 00:00authored byA Chauhan, Anamika, A Kumar, R Srivastava, R Butcher, J Beckmann, Andrew DuthieAndrew Duthie
The unsymmetrical1y substituted diorganotellurium dihalides [2-(4,4'-N02C6H4CHNC6H3Me]RTeX2 (R = 4-MeOC6H4, X = Cl, 1a; Br, 1b; I, 1c; R =4-MeC6H4 ; X = Cl, 2; R =C6H5, X = Cl, 3) were prepared in good yields and characterized by solution and solid-state 125Te NMR spectroscopy, IR spectroscopy and X-ray crystallography. In the solid-state, molecular structures of 1a and 1c possess scarcely observed 1,4-type intramolecular Te···N secondary interaction. Crystal packing of these compounds show an unusually rich diversity of intermolecular secondary, Te·· ·0, Te· .. and 1···1 interactions, Te·· ·π contacts as well as extensive π-stacking of the organic substituents.