- 作者: S. T. Lin*, K. J. Peng, T. F. Hung and H. J. Tien
- 作者服務機構: Department of Applied Chemistry, Providence University, Sha-Lu, Taichung Hsien, 433-01, Taiwan, R.O.C.
- 中文摘要: Reactions of bis[diphenyl-3-(4-methoxyphenylsydnonyl)]phosphine palladium chloride and phosphines or phosphites were performed yielding cis-dichloropalladium complexes. Complexes have been characterized by spectroscopic techniques (compounds 5-13) and by X-ray diffraction for compound 5. Bond lengths of P-C(10) and P-C(16) decreased more than that of P-C(s) after complex formation suggesting that the phenyl rings were able to contribute more electron density to phosphorus for binding with Pd(II) than the sydnone ring does. The equilibrium constants and rate constants for the reaction between complex 4 and phosphorus ligands depend not only on the basicity but also on steric size (I.e., cone angle) of phosphorus ligands used.
- 英文摘要: --
- 中文關鍵字: Sydnonylphsophine palladium complexes; Equilibrium constants; Rate constants; Cone angles; pKa.
- 英文關鍵字: Sydnonylphsophine palladium complexes; Equilibrium constants; Rate constants; Cone angles; pKa.