data_2000180 _journal_name_full 'Acta Cryst. C' _journal_year 1991 _journal_volume 47 _journal_page_first 2415 _journal_page_last 2417 loop_ _publ_author_name 'Britton, D.' 'Norman, R.E.' 'Que, L. Jr' _chemical_formula_moiety 'C18 H21 N4,3(Cl1 O4)' _chemical_formula_sum 'C18 H21 Cl3 N4 O12' _chemical_formula_weight 591.74 _symmetry_cell_setting cubic _symmetry_space_group_name_H-M 'P 21 3' _symmetry_space_group_name_Hall 'P 2ac 2ab 3' _cell_length_a 13.289(3) _cell_length_b 13.289(3) _cell_length_c 13.289(3) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 2347(2) _cell_formula_units_Z 4 _exptl_crystal_density_diffrn 1.675(2) _exptl_crystal_density_meas ? _exptl_crystal_F_000 1216 _exptl_absorpt_coefficient_mu 0.460 _diffrn_radiation_type Mo _diffrn_radiation_wavelength 0.71069 loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Cl1 .90502(8) .9050 .9050 Cl2 .58938(8) .5894 .5894 Cl3 .21428(8) .2143 .2143 O11 .8423(3) .8423 .8423 O12 .8798(3) 1.0089(2) .8875(3) O21 .6516(3) .6516 .6516 O22 .6342(3) .5811(3) .4923(3) O31 .1522(2) .1522 .1522 O32 .1579(3) .2498(2) .3006(2) N1 .4000(3) .4000 .4000 N2 .2844(3) .2295(3) .4787(3) C1 .3544(3) .2799(3) .5319(3) C2 .4054(4) .2282(4) .6049(3) C3 .3824(4) .1268(4) .6219(4) C4 .3090(4) .0797(3) .5682(4) C5 .2605(3) .1328(4) .4943(4) C6 .3702(3) .3886(3) .50657(3) H2N .244(4) .264(4) .444(4) H2 .4588 .2612 .6411 H3 .4154 .0908 .6749 H4 .2914 .0109 .5816 H5 .2102 .1020 .4533 H61 .3095 .4240 .5179 H62 .4216 .4140 .5488