{Pt(η1-(1,2-bis(dimethylphosphino)ethane))2} | 25398-78-1

• 分子结构分类: 有机化合物 - 有机磷化合物 - 有机膦及其衍生物
• 英文名称: {Pt(η1-(1,2-bis(dimethylphosphino)ethane))2}
• 英文别名: [Pt(1,2-bis(dimethylphosphino)ethane)2]；Pt(dmpe)2；2-dimethylphosphanylethyl(dimethyl)phosphane;platinum
• CAS: 25398-78-1
• 化学式: C₁₂H₃₂P₄Pt
• 分子量: 495.361
• InChiKey: LUISYXANVXQBLC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.94
• 重原子数：
  17.0
• 可旋转键数：
  0.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为反应物：
  描述：

  {Pt(η1-(1,2-bis(dimethylphosphino)ethane))2} 以 苯甲腈 为溶剂， 生成
  参考文献：
  名称：

  [HM(diphosphine)2]PF6 复合物 (M = Pt, Ni) 的相对氢化物、质子和氢原子转移能力

  摘要：

  为测定 [HM(diphosphine)2]X 的相对热力学氢度，制备了一系列 [M(diphosphine)2]X2、[HM(diphosphine)2]X 和 M(diphosphine)2 配合物络合物（M = Ni、Pt；X = BF4、PF6；二膦=双（二苯基膦）乙烷（dppe）、双（二乙基膦）乙烷（depe）、双（二甲基膦）乙烷（dmpe）、双（二甲基膦）丙烷（dmpp） ))。M(II) 和 M(0) 配合物的半波电位 (E1/2) 测量值和金属氢化物配合物的 pKa 测量值已用于热化学循环，以获得有关相对氢化物供体能力的定量热力学信息金属氢化物络合物。氢化物供体强度变化为 23 kcal/mol，并受金属、配体取代基、和二膦配体螯合的大小。所制备的配合物的最佳氢化物供体是[HPt(dmpe)2](PF6)，一种具有碱性取代基的第三排过渡金属和具有短链的二膦配体。

  DOI：

  10.1021/ja991888y
• 作为产物：
  描述：

  diethyl(bis(1,2-dimethylphosphino)ethane)platinum(II) 在 dimethylphosphino ethane 作用下， 以 环己烷 为溶剂， 生成 {Pt(η1-(1,2-bis(dimethylphosphino)ethane))2}
  参考文献：
  名称：

  Mechanisms of thermal decomposition of diethylbis(triethylphosphine)platinum(II)

  摘要：

  DOI：

  10.1021/ja00402a025

文献信息

• Unexpected substitution reactions of bis(phosphine)platinum ethene complexes
  作者：Penny A. Chaloner、Gillian T. L. Broadwood-Strong

  DOI：10.1039/dt9960001039

  日期：——

  Reaction of [Pt(C2H4)(PR3)2](R = Ph or C6H4Me-4) with moderately bulky phosphines at low temperatures did not give the expected tris- or tetrakis-phosphine complexes. Instead, mixed-phosphine complexes of the type [Pt(C2H4)(PR3)(PR′3)](R′= C6H11, C6H4OMe-4, C6H4OMe-2, C6H4Me-4 or CH2Ph) were formed. With less bulky phosphines, chelating diphosphines or phosphites, mixed tetrakis complexes, many of them prone to disproportionation, were formed. The complexes were characterised by 31P and 195Pt NMR spectroscopy in solution.

  在低温下，[Pt(C2H4)(PR3)2](R = Ph或C6H4Me-4)与中等体积的膦反应并未生成预期的三膦或四膦配合物。相反，形成了类型为[Pt( )(PR3)(PR′3)]的混合膦配合物（R′= C6H11, C6H4OMe-4, C6H4OMe-2, C6H4Me-4或CH2Ph）。与体积较小的膦反应时，形成了配位的二膦或磷酸酯的混合四膦配合物，其中许多配合物易于发生不均匀化。该配合物通过31P和195Pt NMR光谱在溶液中进行了表征。
• Preparation of tertiary phosphine-olefin complexes of platinum(0): a convenient synthesis of ethylenebis(triethylphosphine)platinum(0)
  作者：Ralph G. Nuzzo、Thomas J. McCarthy、George M. Whitesides

  DOI：10.1021/ic50218a073

  日期：1981.4
• Mixed biphosphine complexes of palladium(0); the structure of “bis(diphenylphosphino)ethane”-“bis(dicyclohexylphosphino)ethane” palladium(0)
  作者：Gillian T.L. Broadwood-Strong、Penny A. Chaloner、Peter B. Hitchcock

  DOI：10.1016/s0277-5387(00)81751-9

  日期：1993.4

  A range of mixed biphosphine complexes of palladium(0) has been prepared and characterized by P-31 NMR spectroscopy. The complexes disproportionate in solution at rates which depend on the nature of the ligands. The structure of [Pd(dcpe)(dppe)] has been established in an X-ray diffraction study.
• Reaction of 1-(Dimethylsilyl)-2-silylbenzene with Platinum(0) Phosphine Complexes
  作者：Shigeru Shimada、Maddali L. N. Rao、Yong-Hua Li、Masato Tanaka

  DOI：10.1021/om050498j

  日期：2005.11.1

  Reaction of 1,2-C6H4(SiMe2H)(SiH3) (8) with Pt(dmpe)(PEt3)(2) (dmpe = Me2PCH2CH2PMe2) or Pt(dmpe)(2) in 1:1 ratio at room temperature gave 1,2-C6H4(SiMe2)(SiH2)}Pt-II(dmpe) (11a) as a major product in solution. Complex 11a can easily dimerize to form [(dmpe)Pt-IV(H)- 1,2-C6H4(SiMe2)(mu-SiH}](2) (12a), and 11a and 12a are in equilibrium in solution. Although monomer 11a is a major species in solution, only dimer 12a crystallized out from toluene, THF, or DMF solution. Addition of excess dmpe to a toluene solution of 11a/12a trapped the Pt-II species as a pentacoordinated dimer [1,2-C6H4(SiMe2)(SiH2)}Pt-II(dmpe)](2)( mu-dmpe) (13). A similar reaction took place between 8 and Pt(depe)(PEt3)(2) (depe = Et2PCH2CH2PEt2) or Pt(depe)(2) to give 1,2-C6H4(SiMe2)(SiH2)Pt-II(depe) (11b) and [(depe)Pt-IV(H)1,2C(6)H(4)(SiMe2)(mu-SiH)}](2) (12b), and 11b, and 12b are in equilibrium in solution. Two equivalents of 8 reacted with Pt(dmpe)(PEt3)2 in toluene at room temperature to afford two isomeric 1,2-C6H4(SiMe2H)(SiH2)}1,2-C6H4(SiMe2)(SiH2)}(H)Pt-IV(dmpe) complexes 16 and 17 in 5:3 ratio among eight possible isomers. Heating the mixture of 16 and 17 at 100 degrees C in toluene resulted in slow intramolecular dehydrogenative cyclization to afford a mixture of isomeric 1,2-C6H4(SiMe2)(SiH2)}(2)Pt-IV(dmpe) 18 and 19. The structures of complexes 12a, 12b, 13, 17, 18, and 19 were unambiguously determined by single-crystal X-ray analysis.
• Chemical Properties of Tetragermaplatinacyclopentane. Insertion of an Alkyne into a Pt–Ge Bond and Silylation Caused by H₂SiPh₂
  作者：Makoto Tanabe、Takashi Deguchi、Kohtaro Osakada

  DOI：10.1021/om200275w

  日期：2011.6.27

  A platinum complex having dibutylgermyl ligands, [Pt(GeHBu2)(2)(dmpe)] (dmpe = 1,2-bis(dimethylphosphino)ethane), reacted with excess H-2 GeBu2 at 90 degrees C to yield a five-membered tetragermaplatinacycle, [Pt(GeBu(2)GeBu(2)GeBu(2)G au(2))(dmpe)] (6). The direct reaction of H2GeBu2 with [Pt(dmpe)(2)] in 5:1 ratio also gave 6 in 67% yield. The reaction of dimethyl acetylenedicarboxylate with 6 caused insertion of a C C bond into a Pt-Ge bond to form a seven-membered germaplatinacycloheptene, which was characterized by X-ray crystallography. Complex 6 reacted with H2GePh2 and H2SiPh2 in 1:2 ratio to produce a mixture of tetragermane dihydride H(GeBu2)(4)H and bis(silyl)-or bis(germyl)platinum complexes [Pt(EHPh2)(2)(dmpe)] (E = Si, Ge).