Eclipsed M<sub>2</sub>X<sub>6</sub> Compounds Exhibiting Very Short Metal−Metal Triple Bonds
作者:David R. Manke、Zhi-Heng Loh、Daniel G. Nocera
DOI:10.1021/ic049795r
日期:2004.6.1
The preparation, characterization, and electronic structure of homoleptic complexes of molybdenum and tungsten bridged by bis(alkylamido)phenylboranes, M(2)[RN-B(Ph)-NR](3) (M = Mo, R = Et (1), (i)Pr (2); M = W, R = Et (3), (i)Pr (4)), are described. These triple metal-metal bond species (i) exhibit a nearly eclipsed ligand geometry and (ii) possess the shortest metal-metal bonds of neutral dimolybdenum
Mechanism of substitution at a boron atom. Part II. Kinetics of reaction of o-nitroamines with boron halides
作者:J. C. Lockhart
DOI:10.1039/j19660000809
日期:——
The reaction of 2,4-dinitronaphthylamine with phenylboron dichloride and related reactions have been studied kinetically. Substitution by an SN2 pattern, or via an unstable intermediate is a possible mechanism. The energetics of boronium ion formation are discussed in relation to these mechanisms.
动力学研究了2,4-二硝基萘胺与二氯化苯硼的反应及相关反应。可能是通过S N 2模式或不稳定的中间体取代。结合这些机理讨论了硼离子形成的能量学。
Reactions of adducts of dichloro(phenyl)borane with aromatic amines in boiling benzene
作者:J. R. Blackborow、J. C. Lockhart
DOI:10.1039/j19710001343
日期:——
A comparison is made of the elimination of hydrogen chloride from certain adducts of arylamines with dichloro(phenyl)borane and the corresponding arylammonium trichloro(phenyl)borates, with previous data on related boron trichloride adducts.1 Between 1 and 2 of the theoretical number of mol of hydrogen chloride are evolved from dichloro(phenyl)borane systems, exactly 2 mol from the trichloro(phenyl)borates