The first symmetrical tetrarheniumcyclodiyne type cluster containing phosphine ligands: Re4(µ-O)4Cl4[P(C6H4OMe-p)3]4
Abstract
The reactions of methanol solutions of cis-Re2(µ-O2CCH3)2Cl4(H2O)2 with PAr3 (Ar = Ph, C6H4Me-p, C6H4Me-m or C6H4Cl-p) afford the quadruply bonded dirhenium(IV,II) complexes Cl2(MeO)2ReReCl2(PAr3)2, whereas P(C6H4OMe-p)3 gives the complex Re4(µ-O)4Cl4[P(C6H4OMe-p)3]4, which X-ray crystallography has shown is the first symmetrical, neutral, tetrarheniumcyclodiyne type cluster containing phosphine ligands.