Michael J. Taylor, J. A. Grigg, C. Rickard
1992
Citations
0
Influential Citations
10
Citations
Journal
Polyhedron
Abstract
Abstract The triol 1,1,1-tris(hydroxymethyl)ethane combines with tetrahydroxy borate [B(OH)4]− in alkaline aqueous solution to form a mixture of complex anions, one of which is isolated upon crystallization. The structure of [Na(H2O)3][CH3C(CH2O)3B(OH)] has been determined by X-ray crystallography. The complex anion is a cage in which all three oxygen atoms of 1,1,1-tris(hydroxymethyl)ethane are attached to the tetrahedrally-coordinated boron atom. These BO bond lengths are 1.492 A the BOH bond length is 1.407 A. The sodium ion is surrounded octahedrally by six oxygen atoms at distances from 2.33 to 2.51 A, one from the hydroxyl group on boron and the remainder from water molecules. The water molecules form hydrogen bonds with the oxygen atoms of the anion cage.