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Crystal structure of 2-(methyl-amino)-tropone.

ABSTRACT: The title compound, 2-(methyl-amino)-cyclo-hepta-2,4,6-trien-1-one, C8H9NO, crystallizes in the monoclinic space group P21/c, with three independent mol-ecules in the asymmetric unit. The planarity of the mol-ecules is indicated by planes fitted through the seven ring carbon atoms. Small deviations from the planes, with an extremal r.m.s. deviation of 0.0345?Å, are present. In complexes of transition metals with similar ligands, the large planar seven-membered aromatic rings have shown to improve the stability of the complex. Two types of hydrogen-bonding inter-actions, C-H?O and N-H?O, are observed, as well as bifurcation of these inter-actions. The N-H?O inter-actions link mol-ecules to form infinite chains. The packing of mol-ecules in the unit cell shows a pattern of overlapping aromatic rings, forming column-like formations. ?-? inter-actions are observed between the overlapping aromatic rings at 3.4462?(19)?Å from each other.

SUBMITTER: Jansen van Vuuren L 

PROVIDER: S-EPMC6690460 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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Crystal structure of 2-(methyl-amino)-tropone.

Jansen van Vuuren Leandri L   Visser Hendrik G HG   Schutte-Smith Marietjie M  

Acta crystallographica. Section E, Crystallographic communications 20190709 Pt 8

The title compound, 2-(methyl-amino)-cyclo-hepta-2,4,6-trien-1-one, C<sub>8</sub>H<sub>9</sub>NO, crystallizes in the monoclinic space group <i>P</i>2<sub>1</sub>/<i>c</i>, with three independent mol-ecules in the asymmetric unit. The planarity of the mol-ecules is indicated by planes fitted through the seven ring carbon atoms. Small deviations from the planes, with an extremal r.m.s. deviation of 0.0345 Å, are present. In complexes of transition metals with similar ligands, the large planar sev  ...[more]

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