A cyclic porphyrin tetramer linked by azo and butadiyne bridges
A soluble cyclic porphyrin oligomer (CPO) consisting of four 5,10- diarylporphyrins linked by alternating azo and butadiyne bridges has been synthesised via an aminated dinickel(II) butadiyne dimer. This is the first cyclic tetramer that combines both azo and butadiyne bridges and extends the azoporphyrin family, which comprises only a very few examples. The electronic absorption spectrum of the tetramer is more similar to spectra of azoporphyrins than to those of butadiyne-linked dimers or tetramer, exhibiting a two component Soret band with a splitting of 4190 cm-1 and a strongly red-shifted Q band maximum at 735 nm.
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|Item Type:||Journal Article|
|Keywords:||porphyrinoids, porphyrins, azo compounds|
|Subjects:||Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > ORGANIC CHEMISTRY (030500)|
|Divisions:||Past > Schools > Chemistry|
|Copyright Owner:||Copyright 2010 Wiley-Blackwell|
|Copyright Statement:||The definitive version is available at www3.interscience.wiley.com|
|Deposited On:||24 Feb 2011 22:24|
|Last Modified:||29 Feb 2012 14:17|
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