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4,4'-Bipyridine-pyroglutamic acid (1/2).

ABSTRACT: In the title co-crystal, C(10)H(8)N(2)·2C(5)H(7)NO(3), the 4,4'-bipyridine mol-ecule [dihedral angle between the pyridine rings = 36.33?(11)°] accepts O-H?N hydrogen bonds from the two pyroglutamic (pga) acid mol-ecules. The pga mol-ecules at each end of the trimeric aggregate self-associate via centrosymmetric eight-membered amide {?HNCO}(2) synthons, so that the crystal structure comprises one-dimensional supra-molecular chains propagating in [13]. C-H?O and ?-? stacking inter-actions [centroid-centroid separation = 3.590?(2)?Å] consolidate the structure.

SUBMITTER: Arman HD 

PROVIDER: S-EPMC2971158 | biostudies-literature | 2009 Oct

REPOSITORIES: biostudies-literature

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4,4'-Bipyridine-pyroglutamic acid (1/2).

Arman Hadi D HD   Kaulgud Trupta T   Tiekink Edward R T ER  

Acta crystallographica. Section E, Structure reports online 20091031 Pt 11

In the title co-crystal, C(10)H(8)N(2)·2C(5)H(7)NO(3), the 4,4'-bipyridine mol-ecule [dihedral angle between the pyridine rings = 36.33 (11)°] accepts O-H⋯N hydrogen bonds from the two pyroglutamic (pga) acid mol-ecules. The pga mol-ecules at each end of the trimeric aggregate self-associate via centrosymmetric eight-membered amide {⋯HNCO}(2) synthons, so that the crystal structure comprises one-dimensional supra-molecular chains propagating in [13]. C-H⋯O and π-π stacking inter-actions [centroi  ...[more]

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