Crown Ether Palladacycles as Metalloligands: Suitable Precursors for Tetranuclear Mixed Transition/Non-Transition Metal Complexes
作者:Samuel Castro-Juiz、Alberto Fernández、Margarita López-Torres、Digna Vázquez-García、Antonio J. Suárez、José M. Vila、Jesús J. Fernández
DOI:10.1021/om900390a
日期:2009.12.14
Pb(SCN)2, RbClO4, and Ba(ClO4)2 gave the corresponding products in which the cation (Na+, K+, NH4+, Pb2+, Rb+, Ba2+) was coordinated to the crown ether moiety. The structures of compounds 1a and 6a (a complex with one Na+ cation coordinated to each crown ether group) have been determined by X-ray single-crystal diffraction analysis.
Pd(OAc)2与席夫碱配体2,3,4-(MeO)3 C 6 H 2 C(H)═N-[9,10-(C 8 H 16 O 5)C 6 H 3的反应](a)和2,3,4-(MeO)3 C 6 H 2 C(H)═N[9,10-(C 10 H 20 O 6)C 6 H 3 ](b)导致环化金属化合物[Pd 2,3,4-(MeO)3 C 6 HC(H)═N-[9,10-(C 8 H 16 O 5)C 6 H ^ 3 ] - C6,N }(μ-O 2 CME)] 2(1A)和[钯2,3,4-(MEO)3 Ç 6 HC(H)= N [9,10- (C 10 H ^ 20 ö 6)C 6 H ^ 3 ] - C6,N }(μ-O 2 CME)] 2(图1b),分别通过C-H活化。1a与四丁基氯化铵水溶液的复分解反应得到相应的带有桥联氯化物配体2a的环钯二聚体。用NaClO 4处理二聚体化合物,KClO