Reaction of the [WSe4](2-) anion with phosphines: synthesis and crystal structure of a novel cubane-like cluster [W2Se4(eta(2)-Se2CH2)(2){Cu(PCy3)}(2)] (Cy=cyclohexyl)
Qf. Zhang et al., Reaction of the [WSe4](2-) anion with phosphines: synthesis and crystal structure of a novel cubane-like cluster [W2Se4(eta(2)-Se2CH2)(2){Cu(PCy3)}(2)] (Cy=cyclohexyl), INORG CHIM, 325(1-2), 2001, pp. 125-129
Treatment of [Et4N](2)[WSe4] with an excess of PPh3 gives the W(V) dimer [E
t4N](2)[W2Se6]. Reaction of [Et4N](2)[WSe4] with PCy3 (Cy=cyclohexyl) in th
e presence of [CuCl] in CH2Cl2 affords [(mu -WSe4) {Cu(PCy3)} {Cu(PCy3)(2)}
] along with a cubane-like cluster [W2Se4(eta (2)-Se2CH2)(2){Cu(PCy3)}(2)]
which has been characterized by X-ray crystallography. (C) 2001 Elsevier Sc
ience B.V. All rights reserved.