Structure determination and hydrogen bonding of 1-naphthoxyacetic acid, a potential plant growth hormone

Abstract

1-Napthoxyacetic acid crystallizes in the centrosymmetric space group C2/c (No. 15) with cell dimensions of a=14.273(2)A, b=5.845(1)A, c=24.211(1)A, β =105.815(2)°. The structure of the title compound reveals a carboxyl group-naphthalene ring dihedral angle of 4.85(14)°, O—H- - -O hydrogen bonded dimer, hydrogen bond distance of 2.640(2)A, hydrogen bond angle of 172(2)°, and a cis configuration of O2 (double bond) and O3 relative to the C11—C12 bond all of which indicate that the title compound may be effective as a plant growth hormone.