2-Amino-2-(2-fluorophenyl)acetic acid (ortho-fluorophenylglycine) cons
ists of a planar acetate anion with a fluorophenyl group attached to t
he alpha C atom at a dihedral angle of 105.5-degrees. All three amino
H atoms form hydrogen bonds to carboxylate O atoms of three adjacent m
olecules in the crystal. Methyl 4-(fluorocarbonyl)benzoate has a plana
r phenylfluorocarbonyl group and its planar carboxylate group is rotat
ed by 6-degrees from it. The estradiol 3-methyl ether, -fluoro-3-metho
xyestra-1,3,5(10)-trien-17alpha-ol, has the well known structure for t
he estradiol moiety. The alcoholic H atom is hydrogen bonded to the ad
jacent F atom of the molecule. There are no intermolecular hydrogen bo
nds.