摘要:
                                A series of triphenylphosphine coordinated silver alpha,beta-unsaturated carboxylates of type [Ag(O2CR)(PPh3)(n): n = 1, R = CH3CH=CH (2a), (CH3)(2)C=CH (2b), CH3CH2CH=CH (2c), CH3CH2CH2CH=CH (2d), PhCH=CH (2e), CH2=CH (2f); n = 2, CH3CH=CH (3a), (CH3)(2)C=CH (3b), CH3CH2CH=CH (3c), CH3CH2CH2CH=CH (3d)] were prepared by reaction of relative silver carboxylates (1a-1f) with triphenylphosphine in chloroform. These complexes were obtained in high yields and characterized by elemental analysis, H-1 NMR, C-13 NMR, P-31 NMR and IR spectroscopy. Thermal stability of the complexes has been determined by TG analysis. The molecular structure of [Ag((O2CCH=C(CH3)(2)))(PPh3)(2)] (3b) shows that the senecioato ligand is chelated with silver atom and generate, a distorted tetrahedron. (c) 2005 Elsevier B.V. All rights reserved.