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(1E,4E)-1-(2-Nitro-phen-yl)-5-(2,6,6-trimethyl-cyclo-hex-1-en-1-yl)penta-1,4-dien-3-one.

ABSTRACT: In the title curcumin-ionone derivative, C(20)H(23)NO(3), the dihedral angle between the cyclo-hexene and benzene rings is 21.03?(8)°, with both double bonds in the inter-linking olefinic chain adopting E conformations. Two of the methyl-ene groups of the ?-ionone ring are disordered over two sets of sites with occupancy ratios of 0.50:0.50 and 0.60:0.40. In the crystal, mol-ecules are linked by weak C-H?O hydrogen bonds into zigzag chains extending along the b axis.

SUBMITTER: Zou P

PROVIDER: S-EPMC3379425 | biostudies-other | 2012 Jun

REPOSITORIES: biostudies-other

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(1E,4E)-1-(2-Nitro-phen-yl)-5-(2,6,6-trimethyl-cyclo-hex-1-en-1-yl)penta-1,4-dien-3-one.

Zou Peng P Jin Yi-Jun YJ Xiang Liu-Fang LF Sun Dong-Ping DP Yang Shu-Lin SL

Acta crystallographica. Section E, Structure reports online 20120523 Pt 6

In the title curcumin-ionone derivative, C(20)H(23)NO(3), the dihedral angle between the cyclo-hexene and benzene rings is 21.03 (8)°, with both double bonds in the inter-linking olefinic chain adopting E conformations. Two of the methyl-ene groups of the β-ionone ring are disordered over two sets of sites with occupancy ratios of 0.50:0.50 and 0.60:0.40. In the crystal, mol-ecules are linked by weak C-H⋯O hydrogen bonds into zigzag chains extending along the b axis. ...[more]

PMID: 22719623

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