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3-(4-Fluoro-phen-yl)-6-meth-oxy-2-(4-pyrid-yl)quinoxaline.

ABSTRACT: In the title compound, C(20)H(14)FN(3)O, the quinoxaline system makes dihedral angles of 32.38?(7) and 48.04?(7)° with the 4-fluoro-phenyl and pyridine rings, respectively. The 4-fluoro-phenyl ring makes a dihedral angle of 57.77?(9)° with the pyridine ring. In the crystal, the mol-ecules form dimeric C-H?N hydrogen-bonded R(2) (2)(20) ring motifs lying about crystallographic inversion centers. The dimeric units stack via ?-? inter-actions between methoxy-phenyl rings and pyridine-fluoro-phenyl rings with centroid-centroid distances of 3.720?(1) and 3.823?(1)?Å, respectively. The respective average perpendicular distances are 3.421 and 3.378?Å, with dihedral angles between the rings of 1.31?(9) and 11.64?(9)°.

SUBMITTER: Jahns H 

PROVIDER: S-EPMC2969274 | biostudies-literature | 2009 Jun

REPOSITORIES: biostudies-literature

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3-(4-Fluoro-phen-yl)-6-meth-oxy-2-(4-pyrid-yl)quinoxaline.

Jahns Hartmut H   Koch Pierre P   Schollmeyer Dieter D   Laufer Stefan S  

Acta crystallographica. Section E, Structure reports online 20090620 Pt 7

In the title compound, C(20)H(14)FN(3)O, the quinoxaline system makes dihedral angles of 32.38 (7) and 48.04 (7)° with the 4-fluoro-phenyl and pyridine rings, respectively. The 4-fluoro-phenyl ring makes a dihedral angle of 57.77 (9)° with the pyridine ring. In the crystal, the mol-ecules form dimeric C-H⋯N hydrogen-bonded R(2) (2)(20) ring motifs lying about crystallographic inversion centers. The dimeric units stack via π-π inter-actions between methoxy-phenyl rings and pyridine-fluoro-phenyl  ...[more]

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