SINGLE CRYSTAL X-RAY ANALYSIS OF ISOMERIC 2-(2,4,4-TRIMETHYL-3,4-DIHYDRO-2H-BENZO[h]CHROMEN-2-YL)-1-NAPHTHYL ACETATE AND 3-(2,4,4-TRIMETHYL-3,4-DIHYDRO-2H-BENZO[g]CHROMEN-2-YL)- 2-NAPHTHYL ACETATE

摘要

Single crystal X-ray structure characterization of isomeric 2-(2,4,4-trimethyl-3,4-dihydro-2H-benzo[h]chromen-2-yl)-l-naphthyl acetate (1) and 3-(2,4,4-trimethyl-3,4-dihydro-2H-benzo[g]chromen-2-yl)-2-naphthyl acetate (2) is described. Compound 1 crystallizes in the centrosymmetric monoclinic space group P2_1/c with all atoms situated in general positions. Isomeric compound 2 crystallizes in the centrosymmetric triclinic space group P-1 and its structure consists of two crystallographically independent molecules with all atoms located in general positions. In addition to intramolecular С-H···O bonding, 2 is involved in two intermolecular С-H···O interactions resulting in a one-dimensional H-bonded network.