QUADRATIC NONLINEAR SUSCEPTIBILITY OF OCTUPOLAR CHIRAL IONS

被引:123
作者
ZYSS, J
DHENAUT, C
CHAUVAN, T
LEDOUX, I
机构
[1] Molecular Quantum Electronics Department, Laboratoire de Bagneux, UA CNRS 250, Centre National d'Etudes des Télécommunications, France TELECOM, 196 avenue Henri Ravera
关键词
D O I
10.1016/0009-2614(93)85574-8
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A new molecular engineering scheme which merges chirality and intramolecular charge transfer is proposed: it is shown that a central metal atom, namely ruthenium, connected in a trigonal arrangement to identical organic ligands (2,2'-bipyridine or 1,10-phenanthroline) forms a prototypical octupolar nonlinear system. The quadratic nonlinear properties of ruthenium(II)-tris(2,2'-bipyridyl (RuTB) and ruthenium(II)-(tris-1,10-phenanthroline) (RuTP) are not amenable to electric field-induced second harmonic generation experiments, owing to the absence of net dipole moment in the ground state: incoherent second harmonic scattering is used instead and leads to resonant beta magnitudes of (210+/-60) x 10(-30) esu for RuTB and (170+/-40) X 10(-30) esu for RuTP, thus demonstrating the validity of this new scheme.
引用
收藏
页码:409 / 414
页数:6
相关论文
共 26 条