Synthesis and characterisation of the six-membered cyclopalladated complexes of 2-benzylbenzothiazole

被引:15
作者
Fuchita, Y [1 ]
Yoshinaga, K [1 ]
Kusaba, H [1 ]
Mori, M [1 ]
Hiraki, K [1 ]
Takehara, K [1 ]
机构
[1] NAGASAKI UNIV,FAC ENGN,DEPT APPL CHEM,NAGASAKI 852,JAPAN
关键词
cyclopalladation; palladium complexes; six-membered ring complexes; fluxional complexes;
D O I
10.1016/0020-1693(95)04733-6
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The six-membered cyclopalladated complex di-mu-acetato-bis[2-(2'-thiazolylmethyl)phenyl-C-1,N] dipalladium(II), [{Pd(mu-O(2)CMe)(eta(2)-bbt)}(2)] (eta(2)-bbt=2-(2'-thiazolylmethyl)phenyl-C-1,N),has been prepared by the reaction of palladium(II) acetate and 2-benzylbenzothiazole. Its di-mu-halogeno analogues [{Pd(mu-X)(eta(2)-bbt)}(2)], synthesised by the metathetical reaction with LiCl or NaX, undergo bridge-splitting reactions with some pyridine derivatives and thallium(I) acetylacetonate to yield corresponding mononuclear cyclopalladated complexes. The cyclopalladated feature and the six-membered structure have been confirmed by the H-1 NMR spectra of the mononuclear pyridine complexes, Temperature-dependent H-1 NMR spectra have been observed for [{Pd(mu-O(2)CMe)(eta(2)-bbt)}(2)] and [Pd(acac)(eta(2)-bbt)] and are attributed to inversions of acetato bridges and the boat-formed six-membered ring, respectively.
引用
收藏
页码:125 / 132
页数:8
相关论文
共 41 条