ISSN:
0030-4921
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The mechanism of the formation of copper phthalocyanine in the phthalic anhydride/urea process was elucidated by employing 14N, 15N or mixed nitrogen donors and enriched 63Cu for the synthesis of the pigment. Both EPR spectroscopy of the magnetically dilute complex and IR spectroscopy of oxidative fission products provide information about the isotopic composition of the inner chelate sphere. The range of superhyperfine interaction detectable by the EPR method was analysed by means of copper phthalocyanine labelled with 13C at positions 1, 4, 6, 9, 11, 14, 16 and 19. The results confirm a reaction mechanism which includes the formation of phthalonitrile as an intermediate product.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1270221012
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