4-(1H-2,3-Dihydronaphtho[1,8-de][1,3,2]diazaborinin-2-yl)-1-ethylpyridin-1-ium iodide monohydrate

Abstract

The cation of the title hydrated salt, C17H17BN3+·I−·H2O, is a diazaborinane featuring substitution at the 1, 2, and 3 positions in the nitrogen–boron six-membered heterocycle. The cation is approximately planar with a dihedral angle between the pyridyl ring and the diazaborinane ring system of 5.40 (5)°. In the crystal, the cations stack along [100] in an alternating head-to-tail manner, while the iodide ion and water molecule form one-dimensional hydrogen-bonded chains beside the cation stack. The cation stacks and I−–water chains are crosslinked by N—H...I and N—H...O hydrogen bonds.

Keywords

• crystal structure
• hydrate polymorph
• pyridinium ion
• bdan