Elsevier

Polyhedron

Volume 13, Issues 6–7, March–April 1994, Pages 1101-1103
Polyhedron

Communication
New coordination mode of bis(diphenylphosphine) methanide diselenide. Synthesis and X-ray crystal structure of [(η5 single bond C5Me5)Rh{η3 single bond (SePPh2)2CH&}]ClO4

https://doi.org/10.1016/S0277-5387(00)83041-7Get rights and content

Abstract

The dinuclear complexes [(η5 single bond C5Me5)RhCl2]2 and [(η6 single bond C6Me6)RuCl2]2 reacted with dppmSe2 giving the cationic compounds [(η5 single bond C5Me5)RhCl{η2 single bond (SePPh2)2CH2&}]+ (1) and [(η6 single bond C6Me6)RuCl{η2 single bond (SePPh2)2CH2&}]+ (2), which were isolated as perchlorate salts. Deprotonation reactions of these compounds yielded the new complexes [(η5 single bond C5Me5)Rh{η3 single bond (SePPh2)2CH&}]ClO4 (3) and [(η6 single bond C6Me6)Ru{η3 single bond (SePPh2)2CH&}]ClO4 (4), respectively, in which the anionic methanide diselenide ligand is acting as a tripod ligand, with a C,Se,Se′-donor set. The structure of3 has been determined by X-ray crystallography.

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