Keywords: Boriraan.png Molecular diagram of w Borirane made with ChemSketch and GIMP nl Boriraan Drawing by English Wikipedia editor User Dr Helix Dr Helix originally uploaded there as File Borirane 2D structure png on 13 December 2008 2008-12-13 User Dr Helix Dr Helix en wikipedia Dr Helix Organoboranes Boron heterocycles Three-membered rings |