Crystal structure of methyl 8-Iodo-4,5,7-trimethoxy-2-naphthoate

Abstract

The crystal structure of the title compound, C₁₅H₁₅IO₅, has been determined by single crystal X-ray diffraction at 295 K and refined by least squares to a residual of 0.04 (2210 ?observed? reflections). Crystals are monoclinic, P2₁/c, a 10.294(5), b 18.868(9), c 7.549(6) Ǻ, β 90.29(5)°, Z 4. The molecular geometry apart from the iodine environment is as expected; the crystal packing is such that the iodine lies close to a symmetry-related neighbour at I...I 4.148(2) Ǻ and may account for the observed facile elimination of iodine from the solid on heating to 120°C.