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6,7-Di-chloro-2,3-bis(pyridin-2-yl)quinox-aline.

ABSTRACT: The title compound, C18H10Cl2N4, synthesized by the condensation reaction between 4,5-di-chloro-benzene-1,2-di-amine and 1,2-di(pyridin-2-yl)ethane-1,2-dione in boiling acetic acid, has a nearly planar quinoxaline moiety [maximum deviation = 0.070?(1)?Å] whose mean plane makes dihedral angles of 40.51?(2) and 39.29?(3)° with the pyridine rings. Within the unit cell, there are no classical hydrogen bonds. Molecules in the structure pack with ?-? stacking contacts between the quinoxaline units and nearby pyridine rings with an intercentroid distance of 3.7676?(9)?Å.

SUBMITTER: Crundwell G

PROVIDER: S-EPMC4384551 | biostudies-other | 2015 Feb

REPOSITORIES: biostudies-other

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6,7-Di-chloro-2,3-bis(pyridin-2-yl)quinox-aline.

Crundwell Guy G Glagovich Neil M NM King Melissa E ME

Acta crystallographica. Section E, Crystallographic communications 20150110 Pt 2

The title compound, C18H10Cl2N4, synthesized by the condensation reaction between 4,5-di-chloro-benzene-1,2-di-amine and 1,2-di(pyridin-2-yl)ethane-1,2-dione in boiling acetic acid, has a nearly planar quinoxaline moiety [maximum deviation = 0.070 (1) Å] whose mean plane makes dihedral angles of 40.51 (2) and 39.29 (3)° with the pyridine rings. Within the unit cell, there are no classical hydrogen bonds. Molecules in the structure pack with π-π stacking contacts between the quinoxaline units and ...[more]

PMID: 25878854

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