Synthesis and characterization of trinuclear osmium clusters containing diallylphosphines as hemilabile ligands: Experimental and theoretical studies of their reactivity with nucleophilic molecules
作者:Deisy Peña、Yomaira Otero、Alejandro Arce、Lenin Díaz、Ysaura De Sanctis、Edgar Ocando–Mavarez、Juan M. García、Rubén Machado、Teresa González
DOI:10.1016/j.jorganchem.2014.08.023
日期:2014.12
Solid–state structures of [Os3(CO)10μ:κ3(P,C,C)–RP(CH2CCH2)2}] [R = iPr2N (1a), o–MeOC6H4 (1c)], [Os3(CO)10κ1(P)–iPr2NP(CH2CCH2)2}L] [L = CO (3a), PPh3 (4a)], [Os3(CO)9(PPh3)μ:κ3(P,C,C)–iPr2NP(CH2CCH2)2}] (5a) and [Os3(CO)10(μ:η1:η3–C3H4)κ1(P)–p–MeOC6H4P(CH2CCH2)2}] (6b) were established by X–ray crystallography; all products obtained were also characterized by IR and NMR (1H, 13C1H}, 31P1H},
从簇[Os 3(CO)10(MeCN)2 ]和RP(CH 2 CH CH 2)2开始,合成了一系列含有烯基膦配体的[Os 3(CO)12 ]膦取代的衍生物,其中R = i Pr 2 N,o‒ MeOC 6 H 4或p− MeOC 6 H 4。结果表明,这些膦中的末端烯基取代基在金属三角形处发生配位,从而产生通过双键配位的烯丙基片段。的固态结构[O的3(CO)10 μ:κ 3(P,C,C)-RP(CH 2 ç CH 2)2 }] [R = 我镨2 N(1A),Ô -MeOC 6 ħ 4(1C)],[O的3(CO)10 κ 1(P) -我镨2 NP(CH2 Ç CH 2)2 } L] [L = CO(图3a),PPH 3(图4a)],[O的3(CO)9(PPH 3)μ:κ 3(P,C,C) -我镨2 NP(CH 2 ç CH 2)2 }](图5a)和[O的3(CO)10(μ:η 1:η