The structures of two derivatives of the bisdioxine diisocyanate 1. the bisurea 4 and the biscarbamate 5. are established by X-ray crystallography and DFT calculations. These compounds possess endo. https://www.ealisboa.com/super-find-2009-2014-Dodge-Ram-1500-4pc-Bolt-on-Rivet-Style-Spyder-Fender-Flares-hot-value/