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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Shimizu, Soji Zhu, Hua Kobayashi, Nagao |
| Description | Author Affiliation: Shimizu S ( Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, 980-8578 Japan.) |
| Abstract | Mixed-condensation reaction of 1,8-naphthalenedicarbonitrile and a 4,5-disubstituted phthalonitrile provided a series of phthalocyanine (Pc) analogues with azaphenalene (AP) moieties in place of the isoindole moieties. Monosubstituted species, APPc, and the two structural isomers of disubstituted species, $adj-AP_{2}Pc$ and $opp-AP_{2}Pc,$ were successfully isolated by gel-permeation chromatography on HPLC apparatus. Their structures were elucidated by $^{1}H NMR$ spectroscopy and X-ray crystallographic analysis. Replacement of the isoindole moieties with azaphenalene moieties created six-membered-ring units in the core and caused distortion of the molecular structures. The Q-band absorption shifted to the red upon an increase in the number of azaphenalene units; the shape of the absorption spectra depended on the molecular symmetries. APPc and $opp-AP_{2}Pc$ showed a large splitting of the Q band, whereas $adj-AP_{2}Pc$ exhibited a single broad Q band. These changes in the absorption spectra, as well as the unique electronic structures, are discussed in detail, based on magnetic circular dichroism spectra, electrochemical measurements, and density functional theory calculations. |
| ISSN | 09476539 |
| e-ISSN | 15213765 |
| Journal | Chemistry - A European Journal |
| Issue Number | 36 |
| Volume Number | 16 |
| Language | English |
| Publisher | Wiley-VCH;ChemPubSoc Europe |
| Publisher Date | 2010-09-24 |
| Publisher Place | Germany |
| Access Restriction | Open |
| Subject Keyword | Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Catalysis |
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