but-1-en-3-yne; carbanide; carbon; 3-cycloprop-2-en-1-ylideneallyl(methyl)azanide; ethane; ethenone; ethylene; ethynyl-ethynylazanidyl-(isocyanomethylazanidylmethyl)-penta-1,2-dienyl-ruthenium; hydron; isocyanoethane; λ2-carbane; nitrogen; prop-2-ynenitrile; diacetylide - Open Babel Depiction