Rhodium(triphenylphosphine)carbonyl-2,4-dioxo-3-pentyl-4-decanyloxybenzoate: synthesis, electrochemistry and oxidative addition kinetics
作者:Nomampondomise F. Stuurman、Blenerhassitt E. Buitendach、Linette Twigge、Pieter J. Swarts、Jeanet Conradie
DOI:10.1039/c7nj05039a
日期:——
and oxidative addition kinetics are presented for a new [Rh(β-diketonato)(CO)(PPh3)] complex (2), of rhodium metal complexed with a β-diketonato ligand, β-L1 = (CH3COC(C10H21OC6H4COO)COCH3)−, containing a long and sterically large chain (Rα = C10H21OC6H4COO) substituted at the α position. This rhodium triphenylphosphine complex (2), [Rh(β-L1)(CO)(PPh3)], was subsequently converted from a rhodium(I)
介绍了一种新的[Rh(β-diketonato)(CO)(PPh 3)]络合物(2)的合成,电化学和氧化加成动力学,该络合物是与β-二酮基配体络合的铑金属,β-L1=(CH 3 COC(C 10 H 21 OC 6 H 4 COO)COCH 3)-,在α位含有长且大的长链(Rα = C 10 H 21 OC 6 H 4 COO)。随后将三苯基膦膦络合物(2)[Rh(β-L1)(CO)(PPh 3)]从铑(通过化学和电化学氧化将I)转变成铑(III)配合物。通过氧化加成反应[Rh(β-L1)(CO)(PPh 3)] + CH 3 I获得的从Rh I到Rh III的化学转化动力学表明,该反应在两个反应步骤中进行,其中Rh III-烷基为主要反应产物。β-二酮基配体的α位上的空间大而长的链(Rα = C 10 H 21 OC 6 H 4 COO)根本不影响第二级反应速率常数(k 1)所述的第一氧