作者:John R. Chipperfield、David E. Webster、Halimahton Yusof
DOI:10.1016/0022-328x(92)83352-i
日期:1992.8
cleavage by iodine of tin-cobalt bonds in compounds [MenSnCo(CO)4}4−n] (n 0−3) and [Me2ISnCo(CO)4]. The reactions are rapid with k2ca. 0.3–3000 dm3 mol−1 s−1 in cyclohexane at 30°C. As the number of SnCo bonds increases the reactivity of the bonds decreases rapidly. Replacing a methyl group by a Co(CO)4 group has roughly the same effect on the reactivity of SnCo bonds as replacing a methyl group by
报道了化合物[Me n Sn Co(CO)4 } 4 - n ](n n 0-3)和[Me 2 ISnCo(CO)4 ]中锡-钴键碘裂解的速率系数。该反应是快速的与ķ 2约 在30°C下于环己烷中的0.3–3000 dm 3 mol -1 s -1。随着SnCo键数目的增加,键的反应性迅速降低。用Co(CO)4取代甲基该基团对SnCo键的反应性具有与用碘原子取代甲基基团大致相同的作用。动力学研究受到产物[Co(CO)4 I]的不稳定性的阻碍,该产物会迅速分解。
Halogen and halide fissions of trimethyltincobalt-tetracarbonyl and trimethyltinmanganesepentacarbonyl
作者:E.W. Abel、G.V. Hutson
DOI:10.1016/0022-1902(68)80242-8
日期:1968.9
Trimethyltincobalt-tetracarbonyl and trimethyltinmanganesepentacarbonyl have been treated with halogens, triphenylphosphorusgold chloride, diphenylphosphorus chloride and dimethylarsenic iodide to produce a variety of fission products. Some contain metal-metal bonds, and some are known and new phosphorus and arsenic bridged derivatives of the carbonyls.
The bis-phosphonio-benzo[c]phospholide tetraphenylborate 4[BPh4] reacts with CpCo(C2H4)(2) to form a chelate complex [Co(eta (5)-Cp)(kappa P-2,eta (2) (P=C)-4)][BPh4] (6[Bph(4)]) which was characterized by means of spectroscopic techniques and a single crystal X-ray diffraction study. The observed eta (2)(pi)-coordination of the benzophospholide moiety in the cation 6 is highly unusual for aromatic phosphorus heterocycles. The structural data suggest a pronounced coordination-induced localization of pi -electrons in the condensed ring system.