title: Hexahydroxybenzene-2,2'-bipyridine (1/2).
abstract: 2,2'-Bipyridine (2BPY) and hexahydroxybenzene (HHB) crystallize in a 2:1 ratio as a neutral molecular adduct, C(6)H(6)O(6).2C(10)H(8)N(2), in space group P1 with Z = 1 and with the HHB molecule lying on an inversion centre. HHB, of which this is the first single-crystal X-ray structure determination, forms O-H...O hydrogen-bonded chains parallel to the a axis, with O...O distances of 2.761 (1) and 2.782 (1) A. O-H...N hydrogen bonds to the 2BPY molecules crosslink these chains, with O...N distances of 2.707 (1) and 2.735 (1) A.
authors.affiliation: Institut Laue Langevin, BP 156, 38042 Grenoble CEDEX 9, France. cowan@ill.fr
authors.forename: J A
authors.initials: JA
authors.lastname: Cowan
authors.forename: J A
authors.initials: JA
authors.lastname: Howard
authors.forename: M A
authors.initials: MA
authors.lastname: Leech
authors.forename: H
authors.initials: H
authors.lastname: Puschmann
authors.forename: I D
authors.initials: ID
authors.lastname: Williams