pentakis(methylamine)chlororhodium(III)(2+) | 64760-01-6

• 分子结构分类: 有机化合物
• 英文名称: pentakis(methylamine)chlororhodium(III)(2+)
• CAS: 64760-01-6
• 化学式: C₅H₂₅ClN₅Rh
• 分子量: 293.646
• InChiKey: UNHLPHKWYLNDGW-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
  None
• 氢给体数：
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• 氢受体数：
  None

反应信息

• 作为反应物：
  描述：

  pentakis(methylamine)chlororhodium(III)(2+) 在 NH₄Br 作用下， 以 水 为溶剂， 生成 pentakis(methylamine)bromorhodium(III)(2+)
  参考文献：
  名称：

  含不明胺的铑（III）配合物

  摘要：

  便捷合成[Rh（NRH 2）5 X] 2+（R = Me，Et，Pr n，Bu n或Bu i ; X = Cl或Br），反式-[Rh（NR'H 2）4 Cl 2 ] +（R'= PR我，环己基，或pH），和反式- [铑（PYR）4氯2 ] +（PYR =吡咯烷）的报告和铑[Rh（NRH 2）5 CL] 2+被示出成为合成反式-[Rh（NRH 2）的方便原料4 Cl 2 ] +。报告了极谱半波降低电势以及物理和光谱性质。反式-[Rh（NMeH 2） 4 Cl 2 ] +中氨基质子的交换速率以及[Rh（NRH 2） 5 Cl] 2+和反式中溴化物取代氯的速率常数和活化参数-[Rh（NRH 2） 4 Cl 2 ] +（R = Me，Et或Pr n）已确定，并与Rh相关配合物的数据进行比较III，Co III和Cr III。

  DOI：

  10.1039/dt9770001111
• 作为产物：
  描述：

  盐酸 、 hydroxypentakis(methylamino)rhodium(IX) 以 not given 为溶剂， 生成 pentakis(methylamine)chlororhodium(III)(2+)
  参考文献：
  名称：

  Steric effects on the substitution of pentaamine-chromium(III) and -rhodium(III) complexes. Anation reaction rate constants as an indicative of the dissociative shift of the mechanism on crowding the [M(RNH2)5H2O]3+ (M = Rh, R = H, Me, Et, Pr; M = Cr, R = H, Me, Pr) complexes

  摘要：

  The kinetics of the anation reactions of [M(RNH(2))(5)H2O](3+) (M=Rh, R=H, Me, Et, Pr; M=Cr, R=H, Me, Pr) with several ligands (H3PO4/H2PO4-, H3PO3/H2PO3-, CF3COO-, Br-, Cl-, SCN-) have been studied at different temperatures and acidities at I=1.0 M (LiClO4). Results obtained for the anation rate constants and thermal activation parameters are compared with the previously published data for R=H, in order to establish the effects of the amine substituents in the reaction mechanism proposed for the substitution reactions of these complexes. The results obtained are interpreted on the basis of a mechanism where the bond formation process is more important in the substitution on M=Cr complexes than in that of the M=Rh complexes, as already pointed out for the published Delta V-not equal values for the water exchange on these systems. A simple Langford-Gray classification becomes inadequate to describe these situations where the increase of the steric demand of the amine substituents shifts the I-a-I-d classification to the I-d side, although no dramatic changes in the reaction mechanism are found. It is concluded that a More O'Ferrall 'continuous' type of approach to the mechanism classification of the substitution reactions is much more useful in this case.

  DOI：

  10.1016/0020-1693(94)04192-x