[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is an iron coordination entity consisting of two cyano and one carbonyl group coordinated to a central iron atom. It is a metal carbonyl and an iron coordination entity."}, {"from": "gpt", "value": "[C-1][#N].[C-1][#N].[C][=Branch1][C][=O][=Fe]"}]