data_2000201 _journal_name_full 'Acta Cryst. C' _journal_year 1991 _journal_volume 47 _journal_page_first 2511 _journal_page_last 2513 loop_ _publ_author_name 'McKenna, R.' 'Neidle, S.' 'Wilson, W.D.' _chemical_formula_sum 'C18 H19 N1 O2 S1' _chemical_formula_weight 313.42 _symmetry_cell_setting monoclinic _symmetry_space_group_name_H-M 'P 1 21/c 1' _symmetry_space_group_name_Hall '-P 2ybc' _cell_length_a 11.503(3) _cell_length_b 15.932(2) _cell_length_c 9.133(2) _cell_angle_alpha 90 _cell_angle_beta 102.17(2) _cell_angle_gamma 90 _cell_volume 1636.61 _cell_formula_units_Z 4 _exptl_crystal_density_diffrn 1.27 _exptl_crystal_density_meas ? _exptl_crystal_F_000 664 _exptl_absorpt_coefficient_mu 1.762 _diffrn_radiation_type Cu _diffrn_radiation_wavelength 1.54178 loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z S1 .45422(5) .21350(4) .76746(8) C2 .4070(3) .3115(2) .8061(3) C3 .4683(2) .3741(2) .7594(3) C4 .5589(2) .3435(2) .6864(3) C5 .6399(2) .3914(2) .6205(3) C6 .6394(3) .4801(2) .6163(4) C7 .7174(3) .5222(2) .5507(4) C8 .7992(3) .4797(2) .4873(4) C9 .8032(3) .3936(2) .4883(4) C10 .7228(2) .3469(2) .5540(3) C11 .7227(2) .2581(2) .5555(3) C12 .6449(2) .2125(2) .6177(3) C13 .5617(2) .2563(2) .6833(3) C14 .6420(2) .1191(2) .6142(3) O15 .5695(2) .07760(10) .6585(2) O16 .7296(2) .08700(10) .5564(2) C17 .7323(2) -.0042(2) .5433(3) C18 .8399(2) -.0230(2) .4803(3) C19 .8638(2) -.1160(2) .4513(3) N20 .8680(2) -.16810(10) .5838(3) C21 .8579(3) -.2568(2) .5421(4) C22 .9811(3) -.1532(3) .6849(4) H2A .337(2) .314(2) .857(3) H3A .455(2) .430(2) .774(3) H6A .583(2) .508(2) .654(3) H7A .710(3) .585(2) .553(4) H8A .852(2) .504(2) .446(3) H9A .855(2) .363(2) .438(3) H11A .775(2) .229(2) .512(3) H17A .656(2) -.020(2) .478(3) H17B .739(2) -.023(2) .644(3) H18A .911(2) -.0040(10) .550(2) H18B .833(3) .010(2) .381(4) H19A .927(2) -.124(2) .402(3) H19B .783(2) -.133(2) .385(3) H21A .777(3) -.266(2) .481(5) H21B .923(3) -.270(2) .488(5) H21C .869(4) -.285(2) .631(5) H22A 1.048(3) -.162(2) .629(4) H22B .990(3) -.185(2) .776(4) H22C .981(3) -.089(2) .717(4)