Tautomerism in 10-(hydroxyimino)phenanthren-9-one
نویسندگان
چکیده
منابع مشابه
Tautomerism in 10-(hydroxyimino)phenanthren-9-one
In the title compound, C(14)H(9)NO(2), a static disorder exists between the keto-oxime and hy-droxy-nitroso tautomers, in an approximate ratio of 4.6:1, based on refined occupancies for disordered parts. No inter-molecular hydrogen bonding is present in the crystal structure. Instead, both tautomers exhibit similar intra-molecular O-H⋯O hydrogen bonds.
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In the title compound, C21H13ClO, the central anthracene system is distorted towards a boat conformation and the outer rings are not coplanar with the central ring [dihedral angles = 7.79 (1) and 11.90 (1)°]. The crystal structure features inversion dimers with graph-set motif R 2 (2)(18) formed by C-H⋯O inter-actions.
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In the title compound, C(22)H(16)O, the six-membered ring within the anthrone moiety adopts a shallow boat conformation, with puckering parameters Q = 0.2860 (17) Å, Θ = 99.1 (3)° and Φ = 114.8 (3)°. The dihedral angle between the outer benzene rings is 26.53 (8)°. The mean plane through the anthrone ring system makes a dihedral angle of 38.73 (6)° with the pendant benzene ring. In the crystal,...
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In the title compound, C(19)H(15)NO(3)S, the dihydro-phenanthrene unit is not planar, its central ring being distorted towards a sofa conformation. The essentially planar thia-zole ring [maximum deviation = 0.005 (1) Å] is inclined at a dihedral angle of 85.29 (5)° with respect to the mean plane formed through the dihydro-phenanthrene unit. In the crystal structure, pairs of inter-molecular C-H...
متن کامل10-Hydroxy-10-(1,3-thiazol-2-ylmethyl)phenanthren-9(10H)-one
In the title phenanthrenone compound, C(18)H(13)NO(2)S, the dihydro-phenanthrene ring system is not planar, with its central ring distorted to a screw-boat conformation. The essentially planar thia-zole ring [maximum deviation = 0.005 (1) Å] is inclined at an inter-planar angle of 23.36 (5)° with respect to the mean plane through the dihydro-phenanthrene ring system. In the crystal packing, int...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2012
ISSN: 1600-5368
DOI: 10.1107/s160053681203749x