Synonyms: Vanadium,oxo[C,C,C,C-tetraphenyl-37H,39H-tetranaphtho[2,3-b:2',3'-g:2'',3''-l:2''',3'''-q]porphyrazinato(2-)-N37,N38,N39,N40]-;37H,39H-Tetranaphtho[2,3-b:2',3'-g:2'',3''-l:2''',3'''-q]porphyrazine,C,C,C,C-tetraphenyl-, vanadium complex; 37H,39H-Tetranaphtho[2,3-b:2',3'-g:2'',3''-l:2''',3'''-q]porphyrazine,vanadium deriv.; Vanadyl tetraphenylnaphthalocyanine