Cation-Dependent Nonlinear Optical Behavior in an Octupolar 3D Anionic Metal-Organic Open Framework

摘要

Multipolar second-order nonlinear optical(NLO)materials have attracted much attention since the discovery,in the early 1990s,that donor-acceptor-substituted molecules with threefold rotational symmetry(octupolar chromophores)show an improved transparency/optical nonlinearity trade-off with respect to traditional dipolar chromophores as a result of the presence of four significant components of molecular hyper-polarizability.