Octasubstituted lithium phthalocyanines, their method of prepara

Details Octasubstituted lithium phthalocyanines, their method of prepara Octasubstituted lithium phthalocyanines, their method of prepara

1989-07-14

1991-02-26

Rotman, Alan L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

204 59QM, C09B 4704

Patent

active

049963112

ABSTRACT:
The invention concerns an octasubstituted lithium phthalocyanine responding to the formula: ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8, which are identical or different, represent an alkyl or alcoxy radical, possibly substituted by fluorine, and M represents Li or Li.sub.2.
When M represents Li, this involves a lithium phthalocyanine octasubstituted like a radical which can be used in electronic paramagnetic resonance magnetometry.
In this case, the substituents are preferably all identical and represent the methyl or methoxy radical.

REFERENCES:
patent: 3615558 (1971-10-01), Webster et al.
Cuellar et al., "Synthesis and Characterization . . . ", CA 95 179991k, (1981).
Van der Pol et al., "Evidence of an Ordered Columan . . . ", CA 110 126124b, (1989).
Journal of the Chemical Society, Chem. Commun., 1983, pp. 962-963.

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