Synthesis and Structure of [nPr3N(CH2)6NnPr3][CuFe3Br3(SePh)6], [Cu5Fe(SePh)7(PPh3)4] and [Cu4Fe3(SePh)10(PPh3)4]

✍ Scribed by Andreas Eichhöfer; Dieter Fenske; Jolanta Olkowska-Oetzel

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 185 KB
• Volume: 2007
• Category: Article
• ISSN: 1434-1948
• DOI: 10.1002/ejic.200600631

✦ Synopsis

Abstract

CuBr and Fe(OOCCH~3~)~2~ react with PhSeSiMe~3~ in acetonitrile in the presence of the diammonium salt [__n__Pr~3~N(CH~2~)~6~N__n__Pr~3~]Br~2~ to yield ionic [__n__Pr~3~N(CH~2~)~6~N__n__Pr~3~][CuFe~3~Br~3~(SePh)~6~]. The neutral complexes [Cu~5~Fe(SePh)~7~(PPh~3~)~4~] and [Cu~4~Fe~3~(SePh)~10~(PPh~3~)~4~] were obtained by similar reactions of different stoichiometric mixtures of CuOOCCH~3~ and FeCl~2~ with PPh~3~ and PhSeSiMe~3~. The crystal structures of the compounds were determined by single‐crystal X‐ray analysis to give new structural types of molecular cluster compounds formed by copper, iron and selenium. Thermal treatment of [Cu~5~Fe(SePh)~7~(PPh~3~)~4~] and [Cu~4~Fe~3~(SePh)~10~(PPh~3~)~4~] resultsin the formation of mixtures of binary Cu~2~Se and ternaryCuFeSe~2~.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)