platinum(2+);triethylphosphane;tetrabromide | 69460-36-2

• 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: platinum(2+);triethylphosphane;tetrabromide
• CAS: 69460-36-2
• 化学式: C₁₂H₃₀Br₄P₂Pt₂
• 分子量: 946.094
• InChiKey: QSIZVQMZPHPRNO-UHFFFAOYSA-J

计算性质

• 辛醇/水分配系数(LogP)：
  -6.93
• 重原子数：
  20
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  platinum(2+);triethylphosphane;tetrabromide 、 苯乙炔 在 MeOH 作用下， 以 氯仿 为溶剂， 生成
  参考文献：
  名称：

  铂（II）的电子中性烷氧基（有机）卡宾配合物的制备及光谱性质以及顺式-[[苄基（乙氧基）卡宾]二氯（二甲基苯基膦）铂（II）的晶体和分子结构

  摘要：

  铂（II）的一系列电子中性烷氧基（有机）卡宾配合物，顺式-[PtX 2 L {C（OR'）（CH 2 R）}]的制备，是通过卤化物桥联的二聚体[Pt 2 X 4 L 2 ]（X = Cl，Br或l； L = PMe 2 Ph或PEt 3），带有单取代的乙炔RC CH（R = Ph，Me或Et）和醇R'OH（R'= Me， Et或Pr n）。已通过1 H和31 P nmr和红外光谱以及X进行了分析表征系列的典型成员的X射线分析。标题配合物的晶体为单斜晶体，空间群P 2 1 / n，a = 15.084（2），b = 8.4,19（3），c = 15.801（3）Å，β= 92.93（2）°，且Z =4。该结构已通过重原子法求解，并通过全矩阵最小二乘法对2166个已校正吸收的衍射强度数据进行修正，使R = 0.036。晶体由具有顺方形平面几何形状的离散分子构成。选择的键长为：Pt–P 2.240（3），Pt–Cl（反式至P）2

  DOI：

  10.1039/dt9790000684

文献信息

• Selective Formation of Four-Membered Metallacyclic Pt-N-P-C Compounds from Reactions of Bis((N-arylimino)phosphoranyl)methanes with Halide-Bridged Platinum(II) Phosphine Dimers. X-ray Crystal Structures of [PtCl(PMe2Ph){CH(PPh2:NC6H4-4-CH3)(PPh2N'HC6H4-4-CH3)}]+Cl- and [PtCl(PEt3){CH(PPh2:NC6H4-4-CH3)(PPh2N'HC6H4-4-CH3)}]+[PtCl3(PEt3)]-
  作者：Mandy W. Avis、Kees Vrieze、Huub Kooijman、Nora Veldman、Anthony L. Spek、Cornelis J. Elsevier

  DOI：10.1021/ic00120a013

  日期：1995.8

  Bridge-splitting reactions of Pt(2)X(4)(PR(3))(2) (X = Cl, Br; PR(3) = PEt(3), PMe(2)Ph) with bis(iminophosphoranyl)methanes CH2(PPh(2)=NC6H4-4-R')(2) (BIPM: 1a, R' = Me; 1b, R' = OMe) produced Pt(II) complexes, in which the BIPM ligand is N,C-coordinated: [PtX(PR(3))CH-(PPh(2)=N-C6H4-4-R') (PPh(2)-NH-C6H4-4-R')}]Y-+(-) (2a-f, R' = CH3, OCH3, Y = Cl, Br, BF4, CF3CO2; 2g, R' = CH3, PR(3) = PEt(3), Y = PtCl(3)PEt(3)). In the N,C-coordinated BIPM, a net 1,3-H-shift from the bridging methylene group to the noncoordinated N-atom has taken place. NMR studies have revealed a monodentate sigma-N-coordinated species PtX(2)(PR(3))N(C6H4-4-R')=PPh(2)CH(2)PPh(2)=NC6H4 A, as the first intermediate in the formation of 2. The complex formation is strongly dependent on the metal to ligand ratio, M:L. For M:L = 2:1, compound 2g(i) was formed, a N,N'-coordinated six-membered platinacycle, followed by conversion into the N,C chelate 2g, whereas at M:L = 1:2 two new products were obtained; a deprotonated Pt(II) complex with N,C-coordinated BIPM, [PtX(PR(3))CH(PPh(2)=NC6H4-4-R')(2)] (3; X = Cl, PR(3) = PEt(3), R' = CH3), and the HCl salt of the ligand [HC(PPh(2)NHC(6)H(4)-4-R')(2)]Cl-+(-) (4). The molecular structures of [PtCl(PMe(2)Ph)CH(PPh(2)=NC6H4-4-CH3)(PPh(2)N'HC6H4-4-CH3)}](+)(Cl)(-) (2d) and [PtCl(PEt(3))CH(PPh(2)=NC6H4-4-CH3)(PPh(2)N'HC6H4-4-CH3)}](+)(PtCl(3)PEt(3))(-) (2g) have been determined by X-ray crystallography. Crystal data for 2d: trigonal, space group P $($) over bar$$ 1, with a = 14.3852(11) Angstrom, b = 15.4886(9) Angstrom, c = 20.190(2) Angstrom, alpha = 100.580(7)degrees, beta = 92.223(8)degrees, gamma = 99.508(6)degrees, V = 4350.1(6) Angstrom(3), and Z = 4. Crystal data for 2g: trigonal, space group Pi, with a = 10.1970(8) Angstrom, b = 14.5045(9) Angstrom, c = 20.5471(19) Angstrom, alpha = 96.154(7)degrees, beta = 103.993(7)degrees, gamma 107.548(6)degrees, V = 2757.8(4) Angstrom(3), and Z = 2. The structure refinement converged to R(w) = 0.0432, R = 0.0436 for 2d and wR2 = 0.1247, R1 = 0.501 for 2g. The structure of the cationic parts of 2d and 2g comprises a distorted square planar Pt(II) environment, the coordination sites taken by PR(3), Cl, and the N and C atoms of the BIPM ligand. The structure of the anionic part of 2g, PtCl3(PEt(3)), is almost perfectly square-planar and is linked with the cationic part via a NH...Cl hydrogen bond.