Synthesis and characterization of photo-responsive carbosilane dendrimers

Synthesis and characterization of photo-responsive carbosilane dendrimers

Preparation of photo-responsive carbosilane dendrimers bearing 4-phenylazo-benzonitrile units on their molecular surface has been accomplished, and their both photo and thermal behaviors have also been characterized. These functional dendrimers suggest that the apparent molecular sizes of the cis-is...

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Veröffentlicht in:Molecules (Basel, Switzerland) Switzerland), 2009-06, Vol.14 (6), p.2226-2234
Hauptverfasser: Koyama, Tetsuo, Hatano, Ken, Matsuoka, Koji, Esumi, Yasuaki, Terunuma, Daiyo
Format: Artikel
Sprache:eng
Schlagworte:
Azo Compounds - chemistry
azobenzene
carbosilane dendrimer
Dendrimers - chemical synthesis
Dendrimers - chemistry
heat isomerization
Isomerism
Molecular Structure
Photochemistry
Silanes - chemistry
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Zusammenfassung:Preparation of photo-responsive carbosilane dendrimers bearing 4-phenylazo-benzonitrile units on their molecular surface has been accomplished, and their both photo and thermal behaviors have also been characterized. These functional dendrimers suggest that the apparent molecular sizes of the cis-isomers are smaller than those of the corresponding trans-isomers, since the molecular diameter of these dendrimers would be shorter on the basis of trans-->cis photo-isomerization of azobenzene.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules14062226