| 451454-40-3

• CAS: 451454-40-3
• 化学式: C₂Br₂O₄Pt*C₁₁H₁₂N₂
• 分子量: 615.137
• InChiKey: JRMVTHRPHPABOY-UHFFFAOYSA-J

反应信息

• 作为产物：
  描述：

  dipyridiniomethane bis(tetraphenylborate) 、 以 丙酮 为溶剂， 生成
  参考文献：
  名称：

  [PtX2ox]2−, X = Cl, BrProfessor Joachim Straehle 65 岁生日的介绍、晶体结构、振动光谱和法向坐标分析

  摘要：

  By treatment of [PtX4](2-) (X = Cl, Br) with C2O42-(ox(2-)) in water [PtCl(2)ox](2-) and [PtBr(2)ox](2-) are formed which have been isolated by ion exchange chromatography on diethylaminoethyl cellulose. The crystal structures of [(C5H5N)(2)-CH2][PtCl(2)ox].2H(2)O (1) (orthorhombic, space group Pbca, a = 18.451(1), b = 18.256(1), c = 19.913(1) Angstrom, Z = 16) and [(C5H5N)(2)CH2][PtBr(2)ox] (2) (monoclinic, space group P2(1)/c, a = 7.249(1), b = 10.180(1), c = 21.376(1) Angstrom, beta = 93.415(9)degrees, Z = 4) reveal nearly planar complex anions with C,, point symmetry. The bond lengths are Pt-Cl = 2.286, Pt-Br = 2.405 und Pt-O = 2.016 (1) und 2.030 Angstrom (2), In the vibrational spectra the PtX stretching vibrations are observed at 335 and 336 (1) and 219 and 231 cm(-1) (2). The PtO stretching vibrations are coupled with internal modes of the oxalato ligands and appear in the range of 350 - 800 cm(-1). Using the molecular parameters of the X-Ray determinations the IR and Raman spectra of the (n-Bu4N) salts are assigned by normal coordinate analysis. The valence force constants are f(d)(PtCl) 1.97, f(d)(PtBr) = 1.78 and f(d)(PtO) = 2.48 (1) and 2.38 mdyn/Angstrom (2). Taking into account increments of the trans influence a good agreement between observed and calculated frequencies is achieved. The NMR shifts are delta(Pt-195) = 3603.9 (1) and 3318.1 ppm (2).

  DOI：

  10.1002/1521-3749(200206)628:5<965::aid-zaac965>3.0.co;2-4