Hexahydroxybenzene-2,2'-bipyridine (1/2).
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.
Cowan
J A
JA
Institut Laue Langevin, BP 156, 38042 Grenoble CEDEX 9, France. cowan@ill.fr
Howard
J A
JA
Leech
M A
MA
Puschmann
H
H
Williams
I D
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