An i.r.-spectroscopic study of a postulated C–H ⋯ N hydrogen bond suggested by the X-ray structure of a novel heterocycle
Abstract
I.r.-spectroscopic methods indicate that the short C–H ⋯ N distance found in the X-ray structure of Z-1-(p-bromophenylphenylmethylene)-3-oxo-1,2-diazetidinium inner salt (I) is probably not due to strong hydrogen bonding.