Keywords: Cyclodiborazane-Spartan-HF-6-31Gstar-3D-balls.png Ball-and-stick model of cyclodiborazane B<sub>2</sub>N<sub>2</sub>H<sub>8</sub> cyclo- NH<sub>2</sub> BH<sub>2</sub> <sub>2</sub> Structure calculated with the Hartree-Fock 6-31G basis set in http //www wavefun com/products/macintosh/Student/mac_student html Spartan '04 Student Edition Image generated in http //accelrys com/products/discovery-studio/visualization/discovery-studio-visualizer html Accelrys DS Visualizer Own 2009-04-29 Ben Mills Benjah-bmm27 Images by Ben Mills Ball-and-stick models Boron-nitrogen hydrides Cyclic inorganic compounds Four-membered rings |