Chemistry of methinyltricobalt enneacarbonyls. Part V. Tertiary phosphine and arsine derivatives
作者:T. W. Matheson、B. H. Robinson、W. S. Tham
DOI:10.1039/j19710001457
日期:——
Mono-, di-, and tri-substituted tertiary phosphine and arsine derivatives of methinyltricobaltenneacarbonyls have been prepared. The co-ordination behaviour of the cluster is determined by the apical substituent Y, and the stereochemistry adopted is one which minimizes nonbonded carbonyl interactions. Thus the majority of mono-substituted complexes have the same structure as MeCCo3(CO)8Ph3P but other
Infrared spectra of some derivatives of octacarbonyldicobalt
作者:A. R. Manning
DOI:10.1039/j19680001135
日期:——
A number of cobalt carbonyl derivatives of the type [L Co(CO)3]2[L = Et3P, Bu3P, PhMe2P, PhEt2P, Ph3P, (MeO)3P, (PhO)3P, Et3As, or Ph3As] have been prepared, and their infraredspectra investigated in the range 225–4000 cm.–1. Absorption bands due to the vibrations of the Co2(CO)6 moiety have been identified and assigned where possible.
A new synthesis of compounds with cobalt-to-tin bonds
作者:F. Bonati、S. Cenini、D. Morelli、R. Ugo
DOI:10.1039/j19660001052
日期:——
Insertion of tin(II) halides into [Co(CO)3L]2 compounds gives [trans-(CO)3LCo]2SnX2[X = Cl, Br, I; L = CO, Ph3P, Bun3P, or (PhO)3P], which were converted into the corresponding diethyl-, diphenyl-, or monophenylchloro-derivatives by Grignard reagents. The infrared spectra and a possible mechanism are discussed.
将卤化锡(II)插入[Co(CO)3 L] 2化合物可得到[反式-(CO)3 LCo] 2 SnX 2 [X = Cl,Br,I; L = CO,Ph 3 P,Bu n 3 P或(PhO)3 P],它们通过格氏试剂转化为相应的二乙基,二苯基或单苯基氯衍生物。讨论了红外光谱和可能的机理。
Catalysis by phosphine cobalt carbonyl complexes I. Synthesis and catalytic properties of (tributylphosphine)cobalt (I) hydride carbonyl complexes
The synthesis of the cobalt hydrides of formula CoH(CO)4—n[P(n-C4H9)3]n (n=2, 3) are described and their chemical and spectroscopic properties are discussed. The complexes homogeneously catalyze the hydrogenation of alkynes and aldehydes and isomerization of olefins. These reactions are discussed in relation to the aldehyde hydrogenation catalyzed under hydroformylation conditions by the Co2(CO)8 system
式COH(CO)的钴氢化物的合成4- Ñ [P(NC 4 H ^ 9)3 ] Ñ(Ñ = 2,3)中描述和它们的化学和光谱性质进行了讨论。该络合物均匀地催化炔烃和醛的氢化以及烯烃的异构化。讨论了这些反应与在加氢甲酰化条件下由P(nC 4 H 9)3改性的Co 2(CO)8系统催化的醛加氢有关。