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Synthese und Struktur von [Au 10 Se 5 (dppa) 4 {Co 2 (CO) 5 } 4 ]
Author(s) -
Sevillano Paloma,
Fuhr Olaf,
Fenske Dieter
Publication year - 2007
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200700146
Subject(s) - phosphine , selenium , chemistry , crystallography , crystal structure , cobalt , inorganic chemistry , catalysis , organic chemistry
Synthesis and Structure of [Au 10 Se 5 (dppa) 4 {Co 2 (CO) 5 } 4 ] The reaction of [(AuCl) 2 dppa] (dppa = 1,2‐bis(diphenylphosphino)ethyne) with [Co 2 (CO) 8 ] and Se(SiMe 3 ) 2 in CH 2 Cl 2 results in the formation of [Au 10 Se 5 (dppa) 4 {Co 2 (CO) 5 } 4 ] ( 1 ). This compound was characterized using elemental analysis, IR‐spectroscopy and its crystal structure determined by X‐ray diffraction. The molecular structure of 1 shows ten gold atoms bonded to selenium or to phosphorus atoms belonging to the four phosphine ligands (dppa). In all cases a [Co 2 (CO) 5 ] fragment has been added across the triple bond of the phosphine ligands. Four of the selenium atoms are μ 3 ‐bridges between gold atoms or gold and cobalt atoms, acting the fifth selenium atom as a μ 4 ‐bridge between one cobalt and three gold atoms.