#------------------------------------------------------------------------------ #$Date: 2025-08-19 11:43:10 +0100 (Tue, 19 Aug 2025) $ #$Revision: 301803 $ #$URL: svn://www.crystallography.net/cod/cif/2/20/22/2202221.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/. The original data for this entry # were provided by IUCr Journals, http://journals.iucr.org/. # # The file may be used within the scientific community so long as # proper attribution is given to the journal article from which the # data were obtained. # data_2202221 loop_ _publ_author_name 'K. Rajagopal' 'R. V. Krishnakumar' 'M. Subha Nandhini' 'R. Malathi' 'S. S. Rajan' 'S. Natarajan' _publ_section_title ; L-Leucinium oxalate ; _journal_issue 6 _journal_name_full 'Acta Crystallographica Section E' _journal_page_first o878 _journal_page_last o880 _journal_paper_doi 10.1107/S1600536803011267 _journal_volume 59 _journal_year 2003 _chemical_formula_iupac 'C6 H14 N O2 1+, C2 H O4 1-' _chemical_formula_moiety 'C6 H14 N O2 1+, C2 H O4 1-' _chemical_formula_sum 'C8 H15 N O6' _chemical_formula_weight 221.21 _chemical_name_common 'L-Leucinium oxalate' _chemical_name_systematic ; L-Leucinium oxalate ; _space_group_IT_number 1 _symmetry_cell_setting triclinic _symmetry_space_group_name_Hall 'P 1' _symmetry_space_group_name_H-M 'P 1' _atom_sites_solution_hydrogens geom _atom_sites_solution_primary direct _atom_sites_solution_secondary difmap _audit_creation_method SHELXL-97 _cell_angle_alpha 87.37(7) _cell_angle_beta 99.64(5) _cell_angle_gamma 100.35(6) _cell_formula_units_Z 2 _cell_length_a 5.674(3) _cell_length_b 9.803(9) _cell_length_c 9.906(8) _cell_measurement_reflns_used 25 _cell_measurement_temperature 293(2) _cell_measurement_theta_max 72 _cell_measurement_theta_min 2.75 _cell_volume 534.3(7) _computing_cell_refinement 'CAD-4 Software' _computing_data_collection 'CAD-4 Software (Enraf-Nonius, 1989' _computing_data_reduction 'CAD-4 Software' _computing_molecular_graphics 'PLATON (Spek, 1999)' _computing_publication_material SHELXL97 _computing_structure_refinement 'SHELXL97 (Sheldrick, 1997)' _computing_structure_solution 'SHELXS97 (Sheldrick, 1990)' _diffrn_ambient_temperature 293(2) _diffrn_measured_fraction_theta_full 0.963 _diffrn_measured_fraction_theta_max 0.963 _diffrn_measurement_device_type 'Enraf-Nonius CAD-4' _diffrn_measurement_method \w-2\q _diffrn_radiation_monochromator graphite _diffrn_radiation_source 'fine-focus sealed tube' _diffrn_radiation_type CuK\a _diffrn_radiation_wavelength 1.54178 _diffrn_reflns_av_R_equivalents 0.0453 _diffrn_reflns_av_sigmaI/netI 0.0208 _diffrn_reflns_limit_h_max 6 _diffrn_reflns_limit_h_min -4 _diffrn_reflns_limit_k_max 11 _diffrn_reflns_limit_k_min -12 _diffrn_reflns_limit_l_max 12 _diffrn_reflns_limit_l_min -12 _diffrn_reflns_number 2223 _diffrn_reflns_theta_full 72.00 _diffrn_reflns_theta_max 72.00 _diffrn_reflns_theta_min 4.59 _diffrn_standards_decay_% <2 _diffrn_standards_interval_time 60min _diffrn_standards_number 2 _exptl_absorpt_coefficient_mu 1.020 _exptl_absorpt_correction_T_max 0.858 _exptl_absorpt_correction_T_min 0.773 _exptl_absorpt_correction_type '\y scan' _exptl_absorpt_process_details '(North et al., 1968)' _exptl_crystal_colour colourless _exptl_crystal_density_diffrn 1.375 _exptl_crystal_density_meas 1.39(3) _exptl_crystal_density_method 'flotation in a mixture of xylene and CCl~4~' _exptl_crystal_description plate _exptl_crystal_F_000 236 _exptl_crystal_size_max 0.35 _exptl_crystal_size_mid 0.20 _exptl_crystal_size_min 0.15 _refine_diff_density_max 0.273 _refine_diff_density_min -0.262 _refine_ls_extinction_coef 0.024(5) _refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^ _refine_ls_extinction_method SHELXL97 _refine_ls_goodness_of_fit_ref 1.038 _refine_ls_hydrogen_treatment constr _refine_ls_matrix_type full _refine_ls_number_parameters 272 _refine_ls_number_reflns 2003 _refine_ls_number_restraints 3 _refine_ls_restrained_S_all 1.037 _refine_ls_R_factor_all 0.0483 _refine_ls_R_factor_gt 0.0448 _refine_ls_shift/su_max <0.001 _refine_ls_shift/su_mean 0.000 _refine_ls_structure_factor_coef Fsqd _refine_ls_weighting_details 'calc w = 1/[\s^2^(Fo^2^)+(0.0934P)^2^+0.031P] where P = (Fo^2^+2Fc^2^)/3' _refine_ls_weighting_scheme calc _refine_ls_wR_factor_gt 0.1132 _refine_ls_wR_factor_ref 0.1166 _reflns_number_gt 1866 _reflns_number_total 2003 _reflns_threshold_expression I>2\s(I) _cod_data_source_file wn6161.cif _cod_data_source_block I _cod_database_code 2202221 _cod_database_fobs_code 2202221 loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv _atom_site_adp_type _atom_site_calc_flag _atom_site_refinement_flags _atom_site_occupancy _atom_site_disorder_assembly _atom_site_disorder_group _atom_site_type_symbol O11 0.6308(5) 0.2550(2) 0.5904(3) 0.0628(7) Uani d . 1 . . O H11 0.6659 0.3331 0.5580 0.094 Uiso calc R 1 . . H O12 0.3846(4) 0.2159(2) 0.3905(2) 0.0502(6) Uani d . 1 . . O O21 0.6788(6) 0.1131(2) 0.1400(3) 0.0658(8) Uani d . 1 . . O H21 0.5955 0.0528 0.1802 0.099 Uiso calc R 1 . . H O22 0.8599(4) 0.1733(2) 0.3515(2) 0.0473(5) Uani d . 1 . . O O31 0.7642(4) 0.8191(2) 0.2095(3) 0.0508(6) Uani d . 1 . . O H31 0.8783 0.7786 0.2082 0.076 Uiso calc R 1 . . H O32 0.5463(5) 0.6055(2) 0.1970(3) 0.0584(7) Uani d . 1 . . O O33 0.3719(4) 0.92160(19) 0.2395(2) 0.0445(5) Uani d . 1 . . O O34 0.1472(4) 0.7104(2) 0.2157(2) 0.0460(5) Uani d . 1 . . O O41 0.4537(4) 0.5704(2) 0.5233(2) 0.0483(5) Uani d . 1 . . O H41 0.3380 0.6090 0.5267 0.072 Uiso calc R 1 . . H O42 0.6609(4) 0.7870(2) 0.5320(3) 0.0520(6) Uani d . 1 . . O O43 0.8545(4) 0.4770(2) 0.4831(3) 0.0501(6) Uani d . 1 . . O O44 1.0744(4) 0.6853(2) 0.5317(2) 0.0445(5) Uani d . 1 . . O N11 0.1556(5) -0.0283(2) 0.4688(3) 0.0444(6) Uani d . 1 . . N H11A 0.0906 -0.1084 0.5046 0.067 Uiso calc R 1 . . H H11B 0.2202 -0.0448 0.3966 0.067 Uiso calc R 1 . . H H11C 0.0408 0.0229 0.4427 0.067 Uiso calc R 1 . . H N21 1.1085(5) 0.4117(2) 0.2699(3) 0.0442(6) Uani d . 1 . . N H21A 1.1960 0.4836 0.2325 0.066 Uiso calc R 1 . . H H21B 1.2064 0.3684 0.3297 0.066 Uiso calc R 1 . . H H21C 1.0020 0.4416 0.3128 0.066 Uiso calc R 1 . . H C11 0.4550(6) 0.1830(3) 0.5069(3) 0.0424(6) Uani d . 1 . . C C12 0.3478(6) 0.0474(3) 0.5730(3) 0.0419(7) Uani d . 1 . . C H12 0.4755 -0.0086 0.5996 0.050 Uiso calc R 1 . . H C13 0.2465(6) 0.0767(3) 0.7010(3) 0.0485(7) Uani d . 1 . . C H13A 0.3721 0.1374 0.7596 0.058 Uiso calc R 1 . . H H13B 0.1128 0.1264 0.6727 0.058 Uiso calc R 1 . . H C14 0.1571(6) -0.0505(3) 0.7853(3) 0.0510(8) Uani d . 1 . . C H14 0.0281 -0.1107 0.7263 0.061 Uiso calc R 1 . . H C15 0.0470(9) -0.0023(5) 0.9027(4) 0.0748(12) Uani d . 1 . . C H15A -0.0113 -0.0813 0.9565 0.112 Uiso calc R 1 . . H H15B -0.0854 0.0440 0.8653 0.112 Uiso calc R 1 . . H H15C 0.1688 0.0604 0.9595 0.112 Uiso calc R 1 . . H C16 0.3528(8) -0.1329(4) 0.8400(4) 0.0687(10) Uani d . 1 . . C H16A 0.2860 -0.2120 0.8909 0.103 Uiso calc R 1 . . H H16B 0.4806 -0.0759 0.8989 0.103 Uiso calc R 1 . . H H16C 0.4168 -0.1635 0.7651 0.103 Uiso calc R 1 . . H C21 0.8314(6) 0.1932(3) 0.2297(3) 0.0417(6) Uani d . 1 . . C C22 0.9758(6) 0.3135(3) 0.1601(3) 0.0405(6) Uani d . 1 . . C H22 1.0966 0.2773 0.1185 0.049 Uiso calc R 1 . . H C23 0.8240(6) 0.3867(3) 0.0483(3) 0.0463(7) Uani d . 1 . . C H23A 0.7263 0.4380 0.0912 0.056 Uiso calc R 1 . . H H23B 0.7136 0.3168 -0.0084 0.056 Uiso calc R 1 . . H C24 0.9670(7) 0.4868(3) -0.0449(3) 0.0518(8) Uani d . 1 . . C H24 1.0874 0.5533 0.0126 0.062 Uiso calc R 1 . . H C25 0.7928(10) 0.5656(5) -0.1354(4) 0.0753(12) Uani d . 1 . . C H25A 0.7118 0.6129 -0.0793 0.113 Uiso calc R 1 . . H H25B 0.6749 0.5019 -0.1933 0.113 Uiso calc R 1 . . H H25C 0.8813 0.6320 -0.1910 0.113 Uiso calc R 1 . . H C26 1.0985(9) 0.4118(5) -0.1313(5) 0.0764(12) Uani d . 1 . . C H26A 1.1868 0.4779 -0.1872 0.115 Uiso calc R 1 . . H H26B 0.9825 0.3467 -0.1888 0.115 Uiso calc R 1 . . H H26C 1.2095 0.3633 -0.0725 0.115 Uiso calc R 1 . . H C31 0.5642(5) 0.7285(3) 0.2061(3) 0.0366(6) Uani d . 1 . . C C32 0.3423(5) 0.7946(3) 0.2207(3) 0.0357(6) Uani d . 1 . . C C41 0.6513(5) 0.6642(3) 0.5247(3) 0.0362(6) Uani d . 1 . . C C42 0.8774(5) 0.6016(3) 0.5124(3) 0.0360(6) Uani d . 1 . . C loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 O11 0.0683(16) 0.0460(13) 0.0585(13) -0.0266(11) 0.0061(12) 0.0024(10) O12 0.0443(13) 0.0377(11) 0.0622(14) -0.0047(10) 0.0066(10) 0.0113(10) O21 0.0841(19) 0.0412(12) 0.0564(13) -0.0303(12) 0.0111(12) -0.0005(10) O22 0.0452(12) 0.0398(11) 0.0521(12) -0.0046(9) 0.0093(9) 0.0072(9) O31 0.0326(11) 0.0369(11) 0.0805(16) -0.0050(9) 0.0140(10) -0.0018(10) O32 0.0457(13) 0.0322(12) 0.0991(19) -0.0014(10) 0.0247(13) -0.0055(11) O33 0.0448(13) 0.0276(9) 0.0591(12) -0.0038(9) 0.0130(10) -0.0033(8) O34 0.0332(11) 0.0321(10) 0.0695(13) -0.0077(8) 0.0133(9) -0.0021(9) O41 0.0314(11) 0.0366(11) 0.0732(15) -0.0054(9) 0.0096(10) -0.0031(9) O42 0.0441(13) 0.0324(11) 0.0783(15) 0.0007(9) 0.0126(11) -0.0012(9) O43 0.0426(12) 0.0281(10) 0.0788(15) -0.0054(9) 0.0188(10) -0.0043(9) O44 0.0320(11) 0.0315(10) 0.0666(12) -0.0064(8) 0.0107(9) -0.0003(8) N11 0.0543(16) 0.0271(11) 0.0479(13) -0.0068(10) 0.0123(11) -0.0002(9) N21 0.0478(14) 0.0271(11) 0.0507(13) -0.0093(10) 0.0063(11) 0.0037(9) C11 0.0386(16) 0.0296(13) 0.0559(16) -0.0067(11) 0.0121(12) -0.0004(11) C12 0.0446(17) 0.0257(12) 0.0518(15) -0.0048(11) 0.0101(12) -0.0001(11) C13 0.0530(19) 0.0387(15) 0.0516(16) -0.0050(13) 0.0152(13) -0.0047(12) C14 0.053(2) 0.0463(16) 0.0460(15) -0.0133(14) 0.0099(13) 0.0013(12) C15 0.073(3) 0.088(3) 0.062(2) -0.005(2) 0.0296(19) 0.0040(19) C16 0.077(3) 0.063(2) 0.059(2) 0.000(2) 0.0081(18) 0.0150(16) C21 0.0427(16) 0.0273(12) 0.0516(15) -0.0035(11) 0.0086(12) 0.0016(10) C22 0.0441(16) 0.0271(12) 0.0470(14) -0.0059(11) 0.0115(12) -0.0001(10) C23 0.0455(17) 0.0377(14) 0.0496(15) -0.0043(12) 0.0050(12) 0.0058(11) C24 0.060(2) 0.0411(15) 0.0444(15) -0.0122(14) 0.0032(14) 0.0035(11) C25 0.096(3) 0.061(2) 0.061(2) 0.006(2) 0.005(2) 0.0207(17) C26 0.073(3) 0.092(3) 0.065(2) 0.008(2) 0.024(2) 0.016(2) C31 0.0331(14) 0.0313(12) 0.0415(13) -0.0043(10) 0.0064(10) 0.0019(10) C32 0.0356(15) 0.0302(13) 0.0379(13) -0.0046(11) 0.0076(10) 0.0000(10) C41 0.0369(15) 0.0305(13) 0.0376(12) -0.0031(11) 0.0055(10) 0.0000(10) C42 0.0325(14) 0.0285(12) 0.0427(13) -0.0062(11) 0.0074(10) 0.0029(10) loop_ _atom_type_symbol _atom_type_description _atom_type_scat_dispersion_real _atom_type_scat_dispersion_imag _atom_type_scat_source C C 0.0181 0.0091 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' O O 0.0492 0.0322 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' N N 0.0311 0.0180 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' loop_ _geom_angle_atom_site_label_1 _geom_angle_atom_site_label_2 _geom_angle_atom_site_label_3 _geom_angle C11 O11 H11 109.5 C21 O21 H21 109.5 C31 O31 H31 109.5 C41 O41 H41 109.5 C12 N11 H11A 109.5 C12 N11 H11B 109.5 H11A N11 H11B 109.5 C12 N11 H11C 109.5 H11A N11 H11C 109.5 H11B N11 H11C 109.5 C22 N21 H21A 109.5 C22 N21 H21B 109.5 H21A N21 H21B 109.5 C22 N21 H21C 109.5 H21A N21 H21C 109.5 H21B N21 H21C 109.5 O12 C11 O11 125.3(3) O12 C11 C12 122.7(3) O11 C11 C12 111.9(3) N11 C12 C11 107.7(2) N11 C12 C13 111.6(3) C11 C12 C13 110.4(2) N11 C12 H12 109.1 C11 C12 H12 109.1 C13 C12 H12 109.1 C14 C13 C12 115.7(3) C14 C13 H13A 108.3 C12 C13 H13A 108.3 C14 C13 H13B 108.3 C12 C13 H13B 108.3 H13A C13 H13B 107.4 C16 C14 C13 113.1(3) C16 C14 C15 110.8(3) C13 C14 C15 108.4(3) C16 C14 H14 108.1 C13 C14 H14 108.1 C15 C14 H14 108.1 C14 C15 H15A 109.5 C14 C15 H15B 109.5 H15A C15 H15B 109.5 C14 C15 H15C 109.5 H15A C15 H15C 109.5 H15B C15 H15C 109.5 C14 C16 H16A 109.5 C14 C16 H16B 109.5 H16A C16 H16B 109.5 C14 C16 H16C 109.5 H16A C16 H16C 109.5 H16B C16 H16C 109.5 O22 C21 O21 125.0(3) O22 C21 C22 123.6(3) O21 C21 C22 111.4(3) N21 C22 C21 107.1(2) N21 C22 C23 111.3(2) C21 C22 C23 114.3(3) N21 C22 H22 108.0 C21 C22 H22 108.0 C23 C22 H22 108.0 C22 C23 C24 115.7(3) C22 C23 H23A 108.4 C24 C23 H23A 108.4 C22 C23 H23B 108.4 C24 C23 H23B 108.4 H23A C23 H23B 107.4 C25 C24 C26 110.5(3) C25 C24 C23 108.6(3) C26 C24 C23 112.0(3) C25 C24 H24 108.5 C26 C24 H24 108.5 C23 C24 H24 108.5 C24 C25 H25A 109.5 C24 C25 H25B 109.5 H25A C25 H25B 109.5 C24 C25 H25C 109.5 H25A C25 H25C 109.5 H25B C25 H25C 109.5 C24 C26 H26A 109.5 C24 C26 H26B 109.5 H26A C26 H26B 109.5 C24 C26 H26C 109.5 H26A C26 H26C 109.5 H26B C26 H26C 109.5 O32 C31 O31 125.8(3) O32 C31 C32 121.1(3) O31 C31 C32 113.1(2) O33 C32 O34 126.4(3) O33 C32 C31 119.0(2) O34 C32 C31 114.5(2) O42 C41 O41 125.1(3) O42 C41 C42 121.7(3) O41 C41 C42 113.2(2) O43 C42 O44 125.2(3) O43 C42 C41 120.0(2) O44 C42 C41 114.8(2) loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_site_symmetry_2 _geom_bond_distance _geom_bond_publ_flag O11 C11 . 1.304(4) ? O11 H11 . 0.8200 ? O12 C11 . 1.205(4) ? O21 C21 . 1.311(4) ? O21 H21 . 0.8200 ? O22 C21 . 1.202(4) ? O31 C31 . 1.306(4) ? O31 H31 . 0.8200 ? O32 C31 . 1.198(4) ? O33 C32 . 1.244(4) ? O34 C32 . 1.251(4) ? O41 C41 . 1.315(3) ? O41 H41 . 0.8200 ? O42 C41 . 1.200(4) ? O43 C42 . 1.247(4) ? O44 C42 . 1.254(3) ? N11 C12 . 1.486(4) ? N11 H11A . 0.8900 ? N11 H11B . 0.8900 ? N11 H11C . 0.8900 ? N21 C22 . 1.497(4) ? N21 H21A . 0.8900 ? N21 H21B . 0.8900 ? N21 H21C . 0.8900 ? C11 C12 . 1.526(4) ? C12 C13 . 1.535(4) ? C12 H12 . 0.9800 ? C13 C14 . 1.525(4) ? C13 H13A . 0.9700 ? C13 H13B . 0.9700 ? C14 C16 . 1.504(6) ? C14 C15 . 1.537(6) ? C14 H14 . 0.9800 ? C15 H15A . 0.9600 ? C15 H15B . 0.9600 ? C15 H15C . 0.9600 ? C16 H16A . 0.9600 ? C16 H16B . 0.9600 ? C16 H16C . 0.9600 ? C21 C22 . 1.518(4) ? C22 C23 . 1.521(4) ? C22 H22 . 0.9800 ? C23 C24 . 1.535(4) ? C23 H23A . 0.9700 ? C23 H23B . 0.9700 ? C24 C25 . 1.513(6) ? C24 C26 . 1.516(6) ? C24 H24 . 0.9800 ? C25 H25A . 0.9600 ? C25 H25B . 0.9600 ? C25 H25C . 0.9600 ? C26 H26A . 0.9600 ? C26 H26B . 0.9600 ? C26 H26C . 0.9600 ? C31 C32 . 1.546(4) ? C41 C42 . 1.543(4) ? loop_ _geom_hbond_atom_site_label_D _geom_hbond_atom_site_label_H _geom_hbond_atom_site_label_A _geom_hbond_site_symmetry_A _geom_hbond_distance_DH _geom_hbond_distance_HA _geom_hbond_distance_DA _geom_hbond_angle_DHA O11 H11 O43 . 0.82 1.82 2.593(4) 157 O21 H21 O33 1_545 0.82 1.79 2.600(4) 169 O31 H31 O34 1_655 0.82 1.76 2.578(3) 173 O41 H41 O44 1_455 0.82 1.80 2.616(3) 177 N11 H11A O44 1_445 0.89 2.02 2.820(4) 150 N11 H11B O33 1_545 0.89 1.97 2.856(4) 178 N11 H11C O22 1_455 0.89 2.04 2.898(4) 162 N21 H21A O32 1_655 0.89 2.20 3.013(4) 152 N21 H21B O12 1_655 0.89 1.97 2.795(4) 154 N21 H21C O43 . 0.89 2.07 2.902(4) 155 loop_ _geom_torsion_atom_site_label_1 _geom_torsion_atom_site_label_2 _geom_torsion_atom_site_label_3 _geom_torsion_atom_site_label_4 _geom_torsion _geom_torsion_publ_flag O12 C11 C12 N11 0.6(4) y O11 C11 C12 N11 -178.3(3) y O12 C11 C12 C13 -121.4(3) y O11 C11 C12 C13 59.7(4) y N11 C12 C13 C14 66.4(4) y C11 C12 C13 C14 -174.0(3) y C12 C13 C14 C16 60.5(4) y C12 C13 C14 C15 -176.2(3) y O32 C31 C32 O33 175.0(3) y O31 C31 C32 O33 -3.0(4) y O32 C31 C32 O34 -3.0(4) y O31 C31 C32 O34 179.0(3) y O22 C21 C22 N21 -12.2(4) y O21 C21 C22 N21 169.6(3) y O22 C21 C22 C23 -135.9(3) y O21 C21 C22 C23 45.9(4) y N21 C22 C23 C24 71.3(4) y C21 C22 C23 C24 -167.2(3) y C22 C23 C24 C25 -171.7(3) y C22 C23 C24 C26 66.0(4) y O42 C41 C42 O43 -168.5(3) y O41 C41 C42 O43 10.1(4) y O42 C41 C42 O44 10.4(4) y O41 C41 C42 O44 -170.9(3) y loop_ _cod_related_entry_id _cod_related_entry_database _cod_related_entry_code 1 ChemSpider 30654697 2 PubChem 139065908