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Repetitive‐Synthesis of Bulky Dendrimers – A Reversibly Photoactive Dendrimer with Six Azobenzene Side Chains
Author(s) -
Mekelburger HansBernhard,
Vögtle Fritz,
Rissanen Kari
Publication year - 1993
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19931260516
Subject(s) - dendrimer , azobenzene , chemistry , molecule , benzene , acetonitrile , photochemistry , polymer chemistry , organic chemistry
Dendrimers with bulky repeating units containing up to 43 benzene rings (in 9 ) have been obtained by using a repetitive divergent synthetic strategy (three generations). The new functional dendrimer 13 containing six azobenzene units at the periphery was synthesized allowing a reversible switching of the shape and size of the molecule upon irradiation. An X‐ray structure analysis of the dendritic molecule 3a shows the inclusion of acetonitrile.