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Synthesis and NLO Properties of Polar Self‐Assemblies of Molecular Pyramids Covalently Bound on Oxide Surfaces
Author(s) -
Yang Xiaoguang,
McBranch Duncan,
Swanson Basil,
Li DeQuan
Publication year - 1996
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199605381
Subject(s) - chromophore , covalent bond , monolayer , imine , dipole , molecule , polar , materials science , crystallography , oxide , chemical physics , chemistry , nanotechnology , photochemistry , organic chemistry , physics , catalysis , astronomy
Ultrahigh second‐order nonlinearities were observed in calix[4]arene‐based, chromophoric super‐molecules, which form densely packed, highly ordered monolayers on silica surfaces (shown on the right). The super chromophores consist of four stilbazole‐imine units in a rigid cone conformation, in which all the dipoles are aligned in the same direction.