Cr(methylamine)5(H2O)(3+) | 69594-12-3

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 过渡金属有机体
• 英文名称: Cr(methylamine)5(H2O)(3+)
• CAS: 69594-12-3
• 化学式: C₅H₂₇CrN₅O
• 分子量: 225.298
• InChiKey: SUNXSCZZLAJJTE-UHFFFAOYSA-N

计算性质

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

反应信息

• 作为反应物：
  描述：

  Cr(methylamine)5(H2O)(3+) 在 磷酸 作用下， 以 not given 为溶剂， 生成
  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
• 作为产物：
  描述：

  mono(pentakis(methylamino)chromium(VIII)) monochloride 在 水 作用下， 以 not given 为溶剂， 生成 Cr(methylamine)5(H2O)(3+)
  参考文献：
  名称：

  五胺氯钴（III）和-铬（III）配合物的常见解离交换（I d）机理

  摘要：

  [Cr（NH 2 Me）5 Cl] 2+的水合速率比[Cr（NH 3）5 Cl] 2+的水合速率慢，因为在[Cr（NH ）的基态中Cr-Cl键较短2 Me）5 Cl] 2+，这与I d机制一致。

  DOI：

  10.1039/c39860001422

文献信息

• Lawrance, Geoffrey A.; Schneider, Karen; Van Eldik, Rudi, Inorganic Chemistry, 1984, vol. 23, # 24, p. 3922 - 3925
  作者：Lawrance, Geoffrey A.、Schneider, Karen、Van Eldik, Rudi

  DOI：——

  日期：——
• The kinetics of the Hg2+-assisted chloride release from some [MCl(RNH2)5]2+ complexes (M = Co, Cr)
  作者：Jirong Wang、Donald A. House

  DOI：10.1016/0020-1693(94)04390-h

  日期：1995.5

  Activation parameters associated with the Hg2+-assisted chloride release reaction in 50:50 dioxane:aqueous HClO4(I=0.5 M) from [MCI(RNH(2))(5)](2+) at 25 degrees C in the order (k(Hg), M(-1)S(-1);Delta H*,kJ mol(-1);Delta S*,J K-1 mol(-1) are M=Cr,R=H:5.45X10(-2),74.7,-18;M=Cr,R=Me:1.78x10(-3),70.0,-32;M=Cr,R=Et:1.19x10(-3),86.8,-9;M=Cr,R=nPr:7.06x10(-4),96.3,+17;M=Cr,R=nBu:5.30X10(-4),98.0,+21;M=Co,R=H:8.74x10(-2),70.3,-37;M=Co,R=Me:2.40,74.0,+11;M=Co,R=Et:4.95,69.0,0;M=Co,R=nPr:2.59,69.3,-5;M=Co,R=nBu:2.15,70.2,-3. Similar data in aqueous HClO4 (I=1.0 M) are M=Cr,R=H:9.84x10(-2),64.6,-27;M=Cr,R=Me:2.15x10(-3),93.2,+16.5M=Co,R=H:1.40x10(-1),65.1,-42; M=Co,R=Me:5.00,70.4,+5. The trends in activation entropy would rank MCl(RNH(2))(5)](2+) (R not equal H) at essentially the same position on an interchange mechanistic scale, independent of M, and more associatively restricting than [MCl(NH3)(5)](2+).
• Gonzales, Gabriel; Martinez, Manuel; Rodriguez, Elisa, Journal of the Chemical Society, Dalton Transactions, 1995, # 5, p. 891 - 892
  作者：Gonzales, Gabriel、Martinez, Manuel、Rodriguez, Elisa

  DOI：——

  日期：——
• Shevchenko, Yu. N.; Krasnova, V. A.; Svezhentsova, A. A., Russian Journal of Inorganic Chemistry, 1980, vol. 25, p. 1018 - 1021
  作者：Shevchenko, Yu. N.、Krasnova, V. A.、Svezhentsova, A. A.、Sachok, V. V.、Kryukov, A. I.

  DOI：——

  日期：——
• Shevchenko, Yu. N.; Satok, V. V.; Davidenko, N. K., Russian Journal of Inorganic Chemistry, 1979, vol. 24, p. 1475 - 1481
  作者：Shevchenko, Yu. N.、Satok, V. V.、Davidenko, N. K.

  DOI：——

  日期：——