Reactions of thioarsines with metal carbonyls: synthesis and structural characterisation of [Fe 2(CO) 6(μ-AsMe 2)(μ-SPh)], [Fe 2Cp 2(CO) 2(μ-AsPh 2)(μ-SPh)], [Mn 2(CO) 8(μ-AsPh 2)(μ-SPh)] and [Co 3(μ 3-S)(μ-AsPh 2)(CO) 6AsPh 3]

• Published in: Journal of organometallic chemistry Vol. 585; no. 1; pp. 141 - 149
• Main Authors: Conole, Gráinne, Davies, John E., King, Jason D., Mays, Martin J., McPartlin, Mary, Powell, Harold R., Raithby, Paul R.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.08.1999
• Subjects: Bimetallic complexes; Cobalt; Crystal structure; Iron; Manganese; Thioarsines; Bimetallic complexes; Iron; Thioarsines; Cobalt; Crystal structure; Manganese
• ISSN: 0022-328X; 1872-8561
• DOI: 10.1016/S0022-328X(99)00206-5

The thioarsine, AsMe 2(SPh), reacts thermally with [Fe(CO) 5] to give the new bimetallic butterfly complex, [Fe 2(CO) 6(μ-AsMe 2)(μ-SPh)] ( 1). Similarly, thermolysis of the thioarsine AsPh 2(SPh) with [Fe 2Cp 2(CO) 4] and [Mn 2(CO) 10] affords, respectively [Fe 2Cp 2(CO) 2(μ-AsPh 2)(μ-SPh)] ( 2) and [Mn 2(CO) 8(μ-AsPh 2)(μ-SPh)] ( 3). At room temperature, AsPh 2(SPh) reacts rapidly with [Co 2(CO) 8] to yield the trimetallic product, [Co 3(μ 3-S)(μ-AsPh 2)(CO) 6AsPh 3] ( 4). The crystal structures of these four products have been determined by X-ray crystallography. Arsenic–sulfur bond cleavage is a feature of all these reactions; concomitant arsenic–carbon bond formation is observed in the production of complex 4.