{2,2-(Me2PPh)2-closo-2,1-PdSeB10H10} | 147133-85-5

• 英文名称: {2,2-(Me2PPh)2-closo-2,1-PdSeB10H10}
• CAS: 147133-85-5
• 化学式: C₁₆H₃₂B₁₀P₂PdSe
• 分子量: 579.868
• InChiKey: SLKGVRJHQYJTFR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• sp3杂化的碳原子比例：
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反应信息

• 作为产物：
  描述：

  Cs{7-SeB10H11} 、 dichlorobis(dimethylphenylphosphine)palladium(II) 以 四氢呋喃 为溶剂， 以25.3%的产率得到{2,2-(Me2PPh)2-closo-2,1-PdSeB10H10}
  参考文献：
  名称：

  Metallaheteroborane chemistry. Part 11. Selective syntheses of the palladium heteroborane complexes [2,2-(PR3)2-closo-2,1-PdEB10H10](R3= Ph3, MePh2 or Me2Ph; E = Se or Te) and [2-X-2-(PPh3)-closo-2,1-PdTeB10H9(PPh3)](X = Cl, Br, I, CN, SCN or O2CMe)

  摘要：

  Reaction of [PdCl2(PR3)2] (R3 = Ph3, MePh2 or Me2Ph) with the nido-[7-EB10H11]- anions (E = Se or Te) in tetrahydrofuran (thf) at ambient temperature affords twelve-vertex [2,2-(PR3)2-closo-2,1-PdEB10H10] complexes selectively in yields ranging from 16 (E = Se, R = Ph) to 82% (E = Te, R, = Me2Ph). In contrast, the reaction between [PdX2(PPh3)2] (X = Cl or 1) and [7-TeB10H11]- in refluxing toluene affords only [2-X-2-(PPh3)-closo-2,1-PdTeB10H9(PPh3)] in 39 and 95% yields respectively. Further reactions of [2-1-2-(PPh3)-closo-2,1-PdTeB10H9(PPh3)] with Hg(II) salts in thf produce [2-X-2-(PPh3)-closo-2,1-PdTeB10H9(PPh3)] complexes (X = Cl, Br, CN, SCN or O2CMe) in yields from 19 (X = O2CMe) to 96% (X = CN). All complexes were characterised by infrared and NMR spectroscopies. Variable-temperature H-1-{P-31} NMR spectroscopy of [2,2-(PMePh)2-closo-2,1-PdSeB10H10] shows a metal-to-selenaborane rotational bonding fluxionality with DELTAG(double-dagger)293 = 44.5 kJ mol-1. An X-ray diffraction study of [2,2-(PMe2Ph)2-closo-2,1-PdTeB10H10] 6 reveals the crystals to be monoclinic, space group P2(1)/n, with a = 13.110(3), b = 10.498(3), c = 19.561(3) angstrom, beta = 105.44(1)-degrees and Z = 4. A final R factor of 0.023 was calculated for 4579 observed reflections. Principal interatomic distances include Pd-Te 2.6833(2), Pd-B 2.234(3)-2.301(3), Te-B 2.294(4)-2.374(3) and Pd-P 2.3301(7) and 2.3354(8) angstrom. An X-ray diffraction study of [2-(O2CMe)-2-(PPh3)-closo-2,1-PdTeB10H9(PPh3)] 14 recrystallised from CH2Cl2-n-C7H14 as 14. 0.79CH2Cl2 shows the crystals to be triclinic, space group P1BAR with a = 10.416(2), b = 12.409(2), c = 18.720(4) angstrom, alpha = 75.59(2), beta = 84.10(2), gamma = 70.98(1)-degrees and Z = 2. The final R factor is 0.035 for 6472 observed reflections. The acetate ligand is monodentate with Pd-O(1) 2.121(3) A. Other interatomic distances include Pd-Te 2.6903(4), Pd-P(2) 2.355(1), Pd-B(7) 2.201(5), Pd-B(6) 2.268(4) and B(11)-P(1) 1.942(4) angstrom.

  DOI：

  10.1039/dt9930000027