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Multifunctional Hyper-Structured Molecules

Published online by Cambridge University Press:  10 February 2011

T. Wada ,
Y. Zhang ,
T. Aoyama ,
Y. Kubo  and
H. Sasabe
T. Wada
Affiliation:
Core Research for Evolutional Science and Technology (CREST) Frontier Research Program, The Institute of Physical and Chemical Research (RIKEN), JST, Wako, Saitama 351-0198, Japan, tatsuow@postman.riken.go.jp
Y. Zhang
Affiliation:
Core Research for Evolutional Science and Technology (CREST)
T. Aoyama
Affiliation:
Frontier Research Program, The Institute of Physical and Chemical Research (RIKEN), JST, Wako, Saitama 351-0198, Japan, tatsuow@postman.riken.go.jp
Y. Kubo
Affiliation:
Dept. of Applied Chemistry, Saitama University, Urawa, Saitama 338, Japan
H. Sasabe
Affiliation:
Core Research for Evolutional Science and Technology (CREST) Frontier Research Program, The Institute of Physical and Chemical Research (RIKEN), JST, Wako, Saitama 351-0198, Japan, tatsuow@postman.riken.go.jp
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Abstract

To fill the gap between molecular design and the architecture of three-dimensional functional structures, we propose novel hyper-structured molecules (HSMs) based on welldefined and topologically controlled molecular systems. To this end we have developed carbazole dendrimers, trimers, cyclic oligomers and chromogenic calix[4]arenes as HSMs. Photorefractivity was selected as the primary target function of these HSMs. Oligomers developed in our laboratory exhibit intrinsic photocarrier generation, transport, electro-optic, film-forming and poling properties. These multifunctional properties allow us to demonstrate optical image processing using optical phase conjugation. The topological shapes of indoaniline-derived calix[4]arenes were studied by hyper-Rayleigh scattering. The two indoaniline moieties in calix[4]arene derivatives were pre-aligned so as to enhance the net molecular hyperpolarizability. Besides dendric oligomers, cyclic oligomers can be used as a molecular platform which allows molecular level tuning of shape, size and topology for superior opto-electronic functions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 488: Symposium J – Electrical, Optical & Magnetic Properties of Organic IV , 1997 , 255
Copyright
Copyright © Materials Research Society 1998

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