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  • 1
    ISSN: 0044-2313
    Keywords: Trigold manganese cluster ; (Ph3PAu)3Mn(CO)4 ; synthesis ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Structure of (Ph3PAu)3Mn(CO)4Photolysis of (Ph3PAu)Mn(CO)5, Ph3PAuN3 and Ph3PAuNCO yields (Ph3PAu)3Mn(CO)4 (1). 1 crystallizes in the monoclinic space group P21/n with a = 1 031.3(1); b = 3 095.2(3), c = 3 386.3(3) pm; β = 97.58(3)°; Z = 8. The crystal structure contains two symmetry independent clusters 1 of the same geometry. Their inner core MnAu3 forms a rhombus with distances Mn—Au of about the same lengths between 258.4(4) and 262.0(4) pm. The distances Au—Au range from 276.6(2) to 281.3(2) pm. The bonding in 1 is discussed and compared with those of (Ph3PAu)3Co(CO)3 having the same total number of electrons but a tetrahedral framework.
    Notes: Photolyse einer Mischung von (Ph3PAu)Mn(CO)5, Ph3PAuN3 und Ph3PAuNCO in THF führt zur Bildung von (Ph3PAu)3Mn(CO)4 (1). 1 kristallisiert in der monoklinen Raumgruppe P21/n mit a = 1 031,3(1); b = 3 095,2(3), c = 3 386,3(3) pm; β = 97,58(3)°; Z = 8. Die Kristallstruktur enthält zwei symmetrieunabhängige Cluster 1 gleicher Gestalt, deren MnAu3-Gerüst die Struktur einer Raute mit nahezu gleich langen Mn—Au-Abständen zwischen 258,4(4) und 262,0(4) pm aufweist. Die Au—Au-Abstände liegen zwischen 276,6(2) und 281,3(2) pm. Die Bindungsverhältnisse in 1 werden diskutiert und mit denjenigen des Clusters (Ph3PAu)3Co(CO)3 mit gleicher Gesamtelektronenanzahl aber tetraedrischer Gerüststruktur verglichen.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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