Konchenko, Sergei N. and Pushkarevsky, Nikolai A. and Scheer, Manfred (2003) First Examples of Electrophilic Addition to a Fe2Q Face of [Fe3(μ3-Q)(CO)9]2− (Q=Se, Te)—Synthesis and Characterisation of [MFe3(μ4-Q)(CO)9Cp*] and [IrFe2(μ3-Q)(CO)7Cp*] (M=Rh, Ir; Cp*=η5-C5(CH3)5). Journal of Cluster Science 14 (3), pp. 299-312.
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The reaction of [Et4N]2[Fe3(mgr 3-Q)(CO)9] (Q=Se ([Et4N]2[1b]), Te ([Et4N]2[1c])) with [Cp*M(CH3CN)3][CF3SO3]2 (M=Rh, Ir) leads to the addition of a Cp*M2+ unit to a Fe2Q face of the initial cluster. In this way four new heteronuclear clusters [MFe3(mgr 4-Q)(CO)9Cp*] (M=Rh (2b, c); M=Ir (3b, c)) were obtained possessing a butterfly-shaped cluster core bridged by a mgr 4-Q unit. Furthermore, reaction with the Ir starting complex leads to the metal-substituted derivatives [IrFe2(mgr 3-Q)(CO)7Cp*] (4b, c) in lower yields, whose structures consist of a triangular metal core capped by a mgr 3-Q ligand. The products were comprehensively characterised by spectroscopic methods and the molecular structures of 2b, 3c, and 4c were established by single crystal X-ray diffraction measurements.
|Date:||25 October 2003|
|Institutions:||Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Manfred Scheer|
|Keywords:||Cluster; carbonyl complexes; iron; rhodium; iridium; selenium; tellurium|
|Subjects:||500 Science > 540 Chemistry & allied sciences|
|Created at the University of Regensburg:||Unknown|
|Deposited On:||14 Jun 2010 12:13|
|Last Modified:||20 Jul 2011 22:29|