(R)-2-HYDROXY-3-IODO-2-METHYLPROPYL 4-NITROBENZENESULFONATE

The global minimum conformation, as computed by PCMODEL [Gajewski & Gi lbert (1992). Serena Software, Bloomington, IN, USA], of the title com pound agrees with that observed in the crystal. In the crystal, the to rsion angles I-CH2-C-CH2O, ICH2-C-CH2-O, C-CH2-O-S and CH2-O-S-C are - 57.7 (4), -61.7 (4), 171.2 (2) and -73.0 (3)-degrees, respectively. We ak intermolecular hydrogen bonding connects O(O-H) and O(S=O) with an O...O distance of 2.927 (4) angstrom and an angle about the H atom of 165 (4)-degrees.