ISSN:
0749-1581
Keywords:
Octa-alkylphthalocyanines
;
phthalocyanines
;
1H NMR
;
13C NMR
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Solution state 1H NMR and 13C NMR spectral data are reported for 1,4,8,11,15,18,22,25-octahexylphthalocyanine, its zinc metallated analogue, and 1,4,8,11,15,18,22,25-octanonylphthalocyanine. Full 1H and 13C NMR signal assignments for these compounds have been made using one and two dimensional techniques supported by T1 measurements. 13C NMR spectra of the two metal-free derivatives show only three signals in the aromatic region at 100 MHz but the expected four resonances at 22.5 MHz. The apparent absence of one of these at 100 MHz is ascribed to a fast exchange process, originating from N—H⃛N⇌N⃛H—N tautomerism.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1260291014
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