Synthesis of Re-Ru heterobimetallic polyhydride complexes. Study of the influence of ligands bonded to the monometallic precursors on the nature of the isolated binuclear complexes
摘要:
The reaction of K[H(6)ReL(2)] with [RuHCl(CO)(PPh(3))(3-x){P(OPri}3)(x)](L(2) = (PMePh(2))(2), dppe,(AsPh(3))(2), or (PPh(3))(2); x = 0, 1 or 2) leads to [L(2)(CO)HRe(mu-H)(3)RuH(PPh(3))(2-y){P(OPri)(3)}(y)](x = 0 or 1, y = 0; x = 2, y = 1(L(2) = PPh(3))) in a first step. Under the reaction conditions most of these complexes react rapidly with the liberated phosphine giving [L(2)(CO)Re(mu-H)(3)Ru(PPh(3))(3-y)-{P(OPri)(3))(y)] (L(2) = (PMePh(2))(2) or dppe, y = 0; L(2) = (PPh(3))(2) y = 1) as the only isolable complexes. The structure of [(PMePh(2))(2)(Co)Re(mu-H)(3)Ru(PPh(3))(3)] has been established by X-ray structure analysis. The complex [(PPh(3))(2)(CO)Re(mu-H)(3)Ru(PPh(3))(2)(P(OPri)(3))] reacts with molecular hydrogen under pressure to generate [L(2)(CO)HRe(mu-H)(3)RuH)PPh(3))(P(OPri)(3)) as the sole product.
Synthesis of Re-Ru heterobimetallic polyhydride complexes. Study of the influence of ligands bonded to the monometallic precursors on the nature of the isolated binuclear complexes
摘要:
The reaction of K[H(6)ReL(2)] with [RuHCl(CO)(PPh(3))(3-x){P(OPri}3)(x)](L(2) = (PMePh(2))(2), dppe,(AsPh(3))(2), or (PPh(3))(2); x = 0, 1 or 2) leads to [L(2)(CO)HRe(mu-H)(3)RuH(PPh(3))(2-y){P(OPri)(3)}(y)](x = 0 or 1, y = 0; x = 2, y = 1(L(2) = PPh(3))) in a first step. Under the reaction conditions most of these complexes react rapidly with the liberated phosphine giving [L(2)(CO)Re(mu-H)(3)Ru(PPh(3))(3-y)-{P(OPri)(3))(y)] (L(2) = (PMePh(2))(2) or dppe, y = 0; L(2) = (PPh(3))(2) y = 1) as the only isolable complexes. The structure of [(PMePh(2))(2)(Co)Re(mu-H)(3)Ru(PPh(3))(3)] has been established by X-ray structure analysis. The complex [(PPh(3))(2)(CO)Re(mu-H)(3)Ru(PPh(3))(2)(P(OPri)(3))] reacts with molecular hydrogen under pressure to generate [L(2)(CO)HRe(mu-H)(3)RuH)PPh(3))(P(OPri)(3)) as the sole product.