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Synthesis of polyphenylene dendrimeric tetrapyrazinoporphyrazines

Authors
Jang, Chun KeunJaung, Jae Yun
Issue Date
Jun-2008
Publisher
ELSEVIER SCIENCE BV
Keywords
photochemical technology; sensors; porphyrazine; polyphenylene; visible spectra; aggregation
Citation
MATERIALS LETTERS, v.62, no.17-18, pp.3209 - 3212
Indexed
SCIE
SCOPUS
Journal Title
MATERIALS LETTERS
Volume
62
Number
17-18
Start Page
3209
End Page
3212
URI
https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/178601
DOI
10.1016/j.matlet.2008.02.021
ISSN
0167-577X
Abstract
In this study, new tetrapyrazinoporphyrazine derivatives containing both flexible (linear) and more rigid (dendritic) groups were synthesized. The absorption spectra of Mg-porphyrazines 5a and 5b showed that the splitted Q band at 653 and 736 nm caused the coupling of the transition moment between a pair (or more) of chromophores. The absorption spectra of metal-free porphyrazines 6 exhibited a well-resolved splitting of the Q(x)/Q(y) band in the 651-679 nm region and a broad B band in the 377 nin region. Synthesized tetrapyrazinoporphyrazine metal and metal-free complexes were charactefized by UV-visible spectroscopy, MALDI-TOF-Ms (matrix-assisted laser desorption ionization time-of-flight mass) spectroscopy and H-1 NMR spectroscopy.
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