Platinum(II)Benzophenone Imine Complexes and the Crystal Structure of trans-(N,N)-(Benzophenoneimine)chloro-[2-(1-imino-1-phenylmeth yl)phenyliodo]-platinum(II)-Acetone(2/1)
Platinum(II)Benzophenone Imine Complexes and the Crystal Structure of trans-(N,N)-(Benzophenoneimine)chloro-[2-(1-imino-1-phenylmeth yl)phenyliodo]-platinum(II)-Acetone(2/1)
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铂(II)二苯甲酮亚胺配合物和反式-(N,N)-(二苯甲酮亚胺)氯-[2-(1-亚氨基-1-苯基甲基)苯碘]-铂(II)-丙酮(2/)的晶体结构
DOI：
10.3891/acta.chem.scand.53-1069
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
S. Larsen
中科院分区：
文献类型：
--
作者：
L. Groendahl;J. Josephsen;Rikke Christina Mattsson Bruun;S. Larsen
本文报道了铂(II)配合物[PtI2(Ph2C=NH)(2)]、[PtCl2(Ph2C=NH)(2)]、[PtCL(Ph(Ph-H)C=NH)-(NH2 CH2CH2NH2)]和反式-(N，N)-[PtCL(Ph(Ph-H)C=NH)(Ph2C=NH)]的合成和红外光谱表征。报道了后者的室温吸收光谱和发射光谱。研究了反式(N，N)[PtCL(Ph(Ph-H)C=nH)(Ph2C=nH)]的晶体结构。用X射线衍射法测定了1/2{(CH3)(2)CO}。空间群C2/c，a=14.318(4)埃，b=22.854(4)埃。C=108.42(3)埃和β=108.42(2)度，用10368次反射对291个参数进行精化，得到R=0.037，wR2=0.074(所有数据)。配体以平面构型围绕铂，其键长分别为：铂-氯2.404(1)埃，铂-N(单齿亚胺配体)2.004(3)埃，铂-N(双齿亚胺配体)1.979(3)埃和铂-C 1.988(3)埃。反式-(N，N)-[PtCL(Ph(Ph-H)C=NH)(Ph2C=NH)](在氯化镉中)的H-1核磁共振谱的化学位移随络合物浓度的变化而变化，表明存在二聚体。根据邻位金属配体的NH质子在300K时化学位移的变化确定了二聚常数K=1.25(4)M-1。二聚体在溶液中的结构类似于铂配合物在固态中遇到的一种相互作用。
Syntheses and characterisation by H-1 NMR and IR of the platinum(II) complexes [PtI2(Ph2C=NH)(2)], [PtCl2(Ph2C=NH)(2)], [PtCl(Ph(Ph-H)C=NH)-(NH2CH2CH2NH2)] and trans-(N,N)-[PtCl(Ph(Ph-H)C=NH)(Ph2C=NH)] are described. Absorption and emission spectra at room temperature for the latter complex are reported. The crystal structure of trans-(N,N)[PtCl(Ph(Ph-H)C=NH)(Ph2C=NH)] . 1/2{(CH3)(2)CO} was determined by X-ray diffraction methods. Space group C2/c, a = 14.318(4) Angstrom, b = 22.854(4) Angstrom. c = 15.212(3) Angstrom and beta = 108.42(2)degrees using 10 368 reflections in the refinement of 291 parameters gave R = 0.037 and wR2 = 0.074 (for all data). The ligands surround platinum in a planar configuration with bond lengths of Pt-Cl 2.404(1) Angstrom, Pt-N (monodentate imine ligand) 2.004(3) Angstrom, Pt-N (bidentate imine ligand) 1.979(3) Angstrom and Pt-C 1.988(3) Angstrom. The chemical shifts in the H-1 NMR spectrum of trans-(N,N)-[PtCl(Ph(Ph-H)C=NH)(Ph2C=NH)] (in CDCl3) display variations with concentration of the complex that indicate dimerisation. The dimerisation constant was determined from the change in chemical shift for the NH proton of the ortho-metalated ligand, K = 1.25(4) M-1 at 300 K. The structure of the dimer in solution is proposed to resemble one of the types of interactions that are encountered between platinum complexes in the solid state.