#------------------------------------------------------------------------------ #$Date: 2011-09-17 21:27:16 +0100 (Sat, 17 Sep 2011) $ #$Revision: 26029 $ #$URL: svn://www.crystallography.net/cod/cif/2/2003808.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/ # # All data on this site have been placed in the public domain by the # contributors. # data_2003808 _journal_name_full 'Acta Crystallographica Section C' _journal_year 1995 _journal_volume 51 _journal_page_first 1568 _journal_page_last 1570 _publ_section_title ; catena-Diaquatris(\a-methylacrylato)lanthanum(III) ; _chemical_formula_moiety 'C24 H38 La2 O16' _chemical_formula_sum 'C24 H38 La2 O16' _chemical_formula_weight 860.37 _symmetry_cell_setting monoclinic _space_group_IT_number 15 _symmetry_space_group_name_Hall '-C 2yc' _symmetry_space_group_name_H-M 'C 1 2/c 1' _[local]_cod_cif_authors_sg_H-M 'C 2/c' loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' 'x,-y,1/2+z' '-x,-y,-z' '-x,y,1/2-z' '1/2+x,1/2+y,z' '1/2+x,1/2-y,1/2+z' '1/2-x,1/2-y,-z' '1/2-x,1/2+y,1/2-z' _cell_length_a 10.060(2) _cell_length_b 13.953(5) _cell_length_c 23.804(4) _cell_angle_alpha 90. _cell_angle_beta 95.27(1) _cell_angle_gamma 90. _cell_volume 3327(1) _cell_formula_units_Z 4 _exptl_crystal_density_diffrn 1.718 _exptl_crystal_density_meas ? _diffrn_radiation_type 'MoK\a' _diffrn_radiation_wavelength 0.71073 _cell_measurement_reflns_used 25 _cell_measurement_theta_min 10 _cell_measurement_theta_max 12 _exptl_absorpt_coefficient_mu 2.611 _cell_measurement_temperature 293 _exptl_crystal_description 'plate' _exptl_crystal_size_max 0.5 _exptl_crystal_size_mid 0.3 _exptl_crystal_size_min 0.1 _exptl_crystal_size_rad ? _exptl_crystal_colour 'colourless' _chemical_compound_source ? _diffrn_measurement_device 'Enraf-Nonius CAD-4' _diffrn_measurement_method '\w/2\q' _exptl_absorpt_correction_type 'empirical via \y scans' _exptl_absorpt_correction_T_min 0.324 _exptl_absorpt_correction_T_max 0.999 _diffrn_reflns_number 3201 _reflns_number_total 3078 _reflns_number_observed 2738 _reflns_observed_criterion I>3\s(I) _diffrn_reflns_av_R_equivalents 0.021 _diffrn_reflns_theta_max 25 _diffrn_reflns_limit_h_min 0 _diffrn_reflns_limit_h_max 11 _diffrn_reflns_limit_k_min 0 _diffrn_reflns_limit_k_max 16 _diffrn_reflns_limit_l_min -28 _diffrn_reflns_limit_l_max 28 _diffrn_standards_number 3 _diffrn_standards_interval_count ? _diffrn_standards_interval_time 60 _diffrn_standards_decay_% <12 _refine_ls_structure_factor_coef F _refine_ls_R_factor_obs 0.0471 _refine_ls_wR_factor_obs 0.0560 _refine_ls_goodness_of_fit_obs 5.991 _refine_ls_number_reflns 2738 _refine_ls_number_parameters 266 _refine_ls_hydrogen_treatment 'H atom parameters not refined' _refine_ls_weighting_scheme 'unit' _refine_ls_shift/esd_max 0.01 _refine_diff_density_max 0.85 _refine_diff_density_min -0.31 _refine_ls_extinction_method 'none' _refine_ls_extinction_coef ? _atom_type_scat_source 'IntTabIV' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_B_iso_or_equiv La .48689(4) .35034(3) .51716(2) 2.399(8) OW(1) .2491(7) .4224(4) .5017(3) 4.6(2) OW(2) .5975(6) .1856(4) .5203(3) 3.6(1) O(11) .4751(6) .5166(4) .5606(2) 3.0(1) O(12) .6405(6) .3503(4) .4349(2) 3.3(1) O(21) .3458(6) .2578(5) .5724(3) 4.1(1) O(22) .3711(6) .2626(6) .4373(3) 4.7(2) O(31) .6253(6) .3308(5) .6129(3) 3.8(1) O(32) .7363(6) .4046(4) .5507(3) 3.7(1) C(11) .3954(8) .5706(6) .5854(3) 2.7(2) C(12) .3455(9) .5410(7) .6403(4) 3.7(2) C(13) .397(1) .4642(8) .6676(5) 6.9(3) C(14) .244(1) .6001(8) .6626(5) 5.4(3) C(21) .2369(9) .2386(7) .5919(4) 3.4(2) C(22) .240(1) .2144(8) .6535(4) 4.3(2) C(23) .122(1) .204(1) .6774(5) 7.8(4) C(24) .367(1) .205(1) .6853(5) 6.2(3) C(31) .7245(9) .3782(6) .6006(4) 3.4(2) C(32) .832(1) .4029(8) .6466(5) 4.8(2) C(33) .807(1) .389(1) .6999(5) 8.2(4) C(34) .955(1) .442(1) .6296(6) 8.6(4) HW(11) .2218 .4786 .4847 4.0 HW(12) .1945 .3750 .5003 4.0 HW(21) .6393 .1881 .4849 4.0 HW(22) .5292 .1462 .5152 4.0 H(131) .4258 .4667 .7077 4.0 H(132) .4052 .4107 .6509 4.0 H(141) .2206 .5734 .7023 4.0 H(142) .1653 .5980 .6371 4.0 H(143) .2772 .6668 .6676 4.0 H(231) .1166 .2029 .7153 4.0 H(232) .0396 .1998 .6544 4.0 H(241) .4372 .2515 .6758 4.0 H(242) .3896 .1415 .6746 4.0 H(243) .3645 .2108 .7299 4.0 H(331) .8589 .4098 .7272 4.0 H(332) .7403 .3587 .7119 4.0 H(341) .9958 .4832 .6583 4.0 H(342) 1.0173 .3874 .6257 4.0 H(343) .9389 .4767 .5956 4.0 _cod_database_code 2003808