Crystal structures and hydrogen bond analysis of five amino acid conjugates of terephthalic and benzene-1,2,3-tricarboxylic acids
Karmakar, Anirban; Oliver, Clive L.; Platero-Prats, Ana E.; Laurila, Elina; Öhrström, Lars; CrystEngComm 16 (2014) 8243–; doi:10.1039/C4CE00605D

data_7217994
_publ_section_title
;
 Crystal structures and hydrogen bond analysis of five amino acid
 conjugates of terephthalic and benzene-1,2,3-tricarboxylic acids
;
_journal_issue                   35
_journal_name_full               CrystEngComm
_journal_page_first              8243
_journal_paper_doi               10.1039/C4CE00605D
_journal_volume                  16
_journal_year                    2014
_chemical_absolute_configuration syn
_chemical_formula_sum            'C20 H30 N2 O7'
_chemical_formula_weight         410.46
_chemical_name_systematic
;
 ?
;
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2012
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.9544(5)
_cell_length_b                   11.7552(8)
_cell_length_c                   26.8723(19)
_cell_measurement_temperature    173(2)
_cell_volume                     2196.8(3)
_computing_structure_refinement  'SHELXL-2012 (Sheldrick, 2012)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.996
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0605
_diffrn_reflns_av_unetI/netI     0.0859
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       35
_diffrn_reflns_limit_l_min       -38
_diffrn_reflns_number            19064
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.990
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.590
_diffrn_reflns_theta_min         1.516
_exptl_absorpt_coefficient_mu    0.094
_exptl_crystal_density_diffrn    1.241
_exptl_crystal_F_000             880
_exptl_crystal_size_max          0.220
_exptl_crystal_size_mid          0.080
_exptl_crystal_size_min          0.070
_refine_diff_density_max         0.592
_refine_diff_density_min         -0.278
_refine_diff_density_rms         0.055
_refine_ls_abs_structure_details
;
 Flack x determined using 1262 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons and Flack (2004), Acta Cryst. A60, s61).
;
_refine_ls_abs_structure_Flack   -0.1(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.016
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     284
_refine_ls_number_reflns         6670
_refine_ls_number_restraints     7
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.1196
_refine_ls_R_factor_gt           0.0615
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
 w=1/[\s^2^(Fo^2^)+(0.0736P)^2^+0.2125P]
 where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1383
_refine_ls_wR_factor_ref         0.1635
_reflns_Friedel_coverage         0.753
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.981
_reflns_number_gt                4014
_reflns_number_total             6670
_reflns_threshold_expression     'I > 2\s(I)'
_cod_duplicate_entry             7216178
_cod_data_source_file            c4ce00605d2.cif
_cod_data_source_block           Compound2
_cod_database_code               7217994
_shelx_estimated_absorpt_t_min   0.980
_shelx_estimated_absorpt_t_max   0.993
_shelxl_version_number           2012-9
_shelx_res_checksum              39559