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On the Origin of Unpaired Electrons in Metal-Free Phthalocyanine

✍ Scribed by Assour, J. M.; Harrison, S. E.

Book ID
125331214
Publisher
American Chemical Society
Year
1964
Tongue
English
Weight
515 KB
Volume
68
Category
Article
ISSN
0022-3654

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## Abstract The effect of substituents on the position and intensity of the electronic absorption and fluorescence spectra of phthalocyanines (Pcs) was examined for 35 Pc compounds. When electron‐releasing groups are bound to four __Ξ±__‐benzo positions of the Pc skeleton, the B and Q bands shift to