Synthesis and crystal structure of [Ru 8(μ 5-S) 2(μ 4-S)(μ 3-S)(μ-CNMe 2) 2(μ-CO)(CO) 15] formed via the double sulphur–carbon bond cleavage of dithiocarbamate ligands

• Published in: Journal of organometallic chemistry Vol. 692; no. 18; pp. 4000 - 4004
• Main Authors: Deeming, Antony J., Forth, Caroline S., Hogarth, Graeme
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15-08-2007
• Subjects: Aminocarbyne; Carbonyl; Cleavage; Cluster; Dithiocarbamate; Oxidative-addition; Ruthenium; Sulfido; Ruthenium; Sulfido; Cleavage; Cluster; Dithiocarbamate; Oxidative-addition; Carbonyl; Aminocarbyne
• ISSN: 0022-328X; 1872-8561
• DOI: 10.1016/j.jorganchem.2007.05.044

Thermolysis of
cis-[Ru(CO)
2(S
2CNMe
2)
2] and Ru
3(CO)
12 affords octanuclear [Ru
8(μ
5-S)
2(μ
4-S)(μ
3-S)(μ-CNMe
2)
2 (μ-CO)(CO)
15] via the double sulphur–carbon bond cleavage of both dithiocarbamate ligands.
Heating
cis-[Ru(S
2CNMe
2)
2(CO)
2] and [Ru
3(CO)
12] in xylene affords octanuclear [Ru
8(μ
5-S)
2(μ
4-S)(μ
3-S)(μ-CNMe
2)
2(μ-CO)(CO)
15] resulting from the double carbon–sulfur bond cleavage of two dithiocarbamate ligands. The structure consists of a tri-edge-bridged square of ruthenium atoms with a further ruthenium atom being bound only to the central bridging atom. Studies suggest that it may be formed via the pentanuclear intermediate [Ru
5(μ
4-S)
2(μ-CNMe
2)
2(CO)
11] which is formed in trace amounts.