POLARIZABLE STILBAZOLE-BASED ORGANOMETALLIC COMPLEXES AND POLYMERS

被引:13
作者
BURDENIUK, J [1 ]
MILSTEIN, D [1 ]
机构
[1] WEIZMANN INST SCI, DEPT ORGAN CHEM, IL-76100 REHOVOT, ISRAEL
关键词
D O I
10.1016/0022-328X(93)83028-T
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Oxidative addition reactions of trans-4'-bromo-4-stilbazole (1) to Pd(PMe3)4, Pd(PEt3)4, and Pd(PiPr3)3 yield the corresponding Pd(II) complexes (5). The quaternary complexes (6 and 7) are obtained by methylation and protonation of 5. Bromide abstraction from 5 leads to the charged polymers 9. Comparison of the spectroscopic properties (UV, IR, NMR) of these complexes, as well as those of the gold complex 4, with those of the parent organic compounds indicates that there is considerable metal participation in the conjugated systems. The oscillator strength (f) for the pi-pi* transition of the various compounds has been determined. The Pd and Au complexes have considerably higher f values than the parent bromostilbazoles, while palladium complexes exhibit a lower energy pi-pi* transition than the latter. The nature of the phosphine ligand in the palladium complex has a minor effect on conjugation.
引用
收藏
页码:213 / 220
页数:8
相关论文
共 29 条
[1]   Thiourea inclusion complexes of organometallics: optically non-linear materials [J].
ANDERSON, AG ;
CALABRESE, JC ;
TAM, W ;
WILLIAMS, ID .
CHEMICAL PHYSICS LETTERS, 1987, 134 (04) :392-396
[2]  
BANDY JA, 1989, ORGANIC MATERIALS NO, P225
[3]  
BANDY JA, 1989, ORGANIC MATERIALS NO, P219
[4]   ORGANOMETALLICS FOR NONLINEAR OPTICS - METAL PYRIDINE AND BIPYRIDINE COMPLEXES [J].
CALABRESE, JC ;
TAM, W .
CHEMICAL PHYSICS LETTERS, 1987, 133 (03) :244-245
[5]  
CAUZZO G, 1966, TETRAHEDRON, V22, P689
[6]   QUADRATIC HYPERPOLARIZABILITIES OF GROUP-6A METAL-CARBONYL-COMPLEXES [J].
CHENG, LT ;
TAM, W ;
EATON, DF .
ORGANOMETALLICS, 1990, 9 (11) :2856-2857
[7]   SYNTHESIS OF LINKED METAL ACETYLIDE COMPLEXES FOR NONLINEAR OPTICS [J].
DAVIES, SJ ;
JOHNSON, BFG ;
LEWIS, J ;
KHAN, MS .
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1991, 401 (03) :C43-C45
[8]   CONTROL OF BULK DIPOLAR ALIGNMENT USING GUEST HOST INCLUSION CHEMISTRY - NEW MATERIALS FOR 2ND-HARMONIC GENERATION [J].
EATON, DF ;
ANDERSON, AG ;
TAM, W ;
WANG, Y .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1987, 109 (06) :1886-1888
[9]   2ND-HARMONIC GENERATION IN TRANSITION-METAL ORGANIC-COMPOUNDS [J].
FRAZIER, CC ;
HARVEY, MA ;
COCKERHAM, MP ;
HAND, HM ;
CHAUCHARD, EA ;
LEE, CH .
JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (22) :5703-5706
[10]  
GIBSON GS, 1931, J CHEM SOC, P2407