1 0VW N-(tetrahydropyrimidin-2(1h)-ylidene)sulfuric diamide 1.000 2 0VX N-[(2z)-1,3-oxazolidin-2-ylidene]sulfuric diamide 0.750 3 BEV N-[(2z)-1,3-thiazolidin-2-ylidene]sulfamide 0.750 4 0VV N-[(2e)-3,4-dihydroquinazolin-2(1h)-ylidene]sulfuric diamide 0.733