131656-37-6Relevant articles and documents
Selective metal to carbon bond formation in the synthesis of the first rhenium complexes with S2CPCy3 ligands. X-ray structures of [MnRe(CO)6(μ-S2CPCy3)] and [Re2(CO)8(μ-S2CPCy3)]
Alvarez, Bernardo,Miguel, Daniel,Riera, Victor,Miguel, Jesús A.,García-Granda, Santiago
, p. 384 - 387 (2008/10/08)
Reactions of either [Mn(CO)3(S2CPCy3)(Br)] with Na[Re(CO)5] or [Re(CO)3(S2CPCy3)(Br)] with Na-[Mn(CO)5] produce selectively the heterobimetallic complex [MnRe(CO)6(μ-S2CPCy3)], which contains an unsymmetrical η2(S,S′),η3(S,C,S′)-S 2CPCy3 bridge donating eight electrons with the carbon atom of the S2C group bonded to manganese; in contrast, the reaction of [Re-(CO)3(S2CPCy3)(Br)] with Na[Re(CO)5] produces [Re2-(CO)8(μ-S2CPCy3)], with a η1(S),η1(S′)-S2CPCy3 bridge of four electrons and no carbon-rhenium bond. In apparent contradiction with previous theoretical predictions, all the experimental facts suggest a stronger ability for manganese, when compared to rhenium, to become attached to the carbon atom of the S2CPCy3 ligand.