Spectroscopic and electrochemical study of a tetrapyridylporphyrin modified with four bis-(1, 10-phenanthroline) chlororuthenium(III) - Araki, Koiti; Araújo, A L; Tayama, M M; Franco, M; Azevedo, C M N; Angnes, Lúcio; Toma, Henrique Eisi (Journal Porphyrins and Phthalocyanines, 1998)