
																
																	Tetrapyrazinoporphyrazines and their metal derivatives. Part I: Synthesis and basic structural information
																
																
																
															Keywords: سنتز و ساختار; Annulated porphyrazines; Tetrapyrazinoporphyrazines; Azaphthalocyanines; Mono/multinuclear complexes; Pyrazine-2,3-dicarbonitriles; Synthesis and structure;