You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-(5-phenyl-1,4-diaza-2-azanidacyclopenta-3,5-dien-3-yl)pyridine;platinum(2+);2-(5-pyridin-2-yl-1,4-diaza-2-azanidacyclopenta-3,5-dien-3-yl)pyridine by IUPAC nomenclature, provide its molecular formula.
user
C25H17N9Pt
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