Preparation and properties of the aqua ions [W(4)S(4)(H(2)O)(12)](n+) (n = 5, 6) and crystal structure of (Me(2)NH(2))(6)[W(4)S(4)(NCS)(12)].0.5H(2)O |
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| Authors: | Sokolov Maxim N Dybtsev Danil N Virovets Alexander V Fedin Vladimir P Esparza Pedro Hernandez-Molina Rita Fenske Dieter Sykes A Geoffrey |
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| Institution: | Institute of Inorganic Chemistry, Russian Academy of Sciences, pr. Lavrentjeva 3, Novosibirsk 630090, Russia. |
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| Abstract: | The 3 + 1] reaction of W(3)S(4)(H(2)O)(9)](4+) with W(CO)(6)] in 2 M HCl under hydrothermal conditions (130 degrees C) gives the W(4)S(4)(H(2)O)(12)](6+) cuboidal cluster, reduction potential 35 mV vs NHE (6+/5+ couple). The reduced form is obtained by controlled potential electrolysis. X-ray crystal structure was determined for (Me(2)NH(2))(6)W(4)S(4)(NCS)(12)].0.5H(2)O. The W-W and W-S bond lengths are 2.840 and 2.379 A, respectively. |
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