Telluro- and seleno-bridged TiIV-MII (M = Ni,Pd, Pt) heterobimetallic complexes |
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| Authors: | Anju Khanna Bishan L. Khandelwal Sushil K. Gupta |
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| Affiliation: | (1) Department of Chemistry, Indian Institute of Technology, 110016 New Delhi, India;(2) School of Studies in Chemistry, Jiwaji University, 474011 Gwalior, India |
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| Abstract: | Summary Heterobimetallic complexes of the types [Cp2Ti( -EAr)2-M(dppe)] (ClO4)2 [(1)–(4); M, E = Ni, Te (1); Ni, Se (2); Pt, Te (3); Pt, Se (4); Ar = Ph (a), C6H4-4-Me (b), C6H4-4-OMe (c), C6H4-4-OEt (d)] and [Cp2Ti(-TeAr)2-MCl 2] [M = Pd (5), Pt (6)] were obtained by the reactions of Cp2Ti(EAr)2 with M(dppe)(ClO4)2 and M(PhCN)2Cl2, respectively. While (1), (5) and (6) are stable in the solid state as well as in solution, (2)–(4) undergo dissociation to M(dppe)(EAr)2 and Cp2Ti(ClO4)2 in solution, as shown by multinuclear (31P{1H},195Pt{1H}, 125Te{1H}) n.m.r. studies. The reaction of Cp2Ti(SeAr)2 with M(PhCN)2Cl2, however, leads to the formation of Cp2TiCl2 and a polymeric material [M(SeAr)2]n. |
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