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_7217996
_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            'C18 H28 N2 O8'
_chemical_formula_weight         400.42
_chemical_name_systematic
;
 ?
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014
_cell_angle_alpha                90
_cell_angle_beta                 106.949(2)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   10.5665(10)
_cell_length_b                   7.6596(7)
_cell_length_c                   12.8714(11)
_cell_measurement_temperature    173(2)
_cell_volume                     996.50(16)
_computing_structure_refinement  'SHELXL-2014 (Sheldrick, 2014)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.996
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0286
_diffrn_reflns_av_unetI/netI     0.0467
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            9773
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.989
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.588
_diffrn_reflns_theta_min         1.654
_exptl_absorpt_coefficient_mu    0.105
_exptl_crystal_density_diffrn    1.335
_exptl_crystal_F_000             428
_exptl_crystal_size_max          0.240
_exptl_crystal_size_mid          0.110
_exptl_crystal_size_min          0.080
_refine_diff_density_max         1.532
_refine_diff_density_min         -0.888
_refine_diff_density_rms         0.088
_refine_ls_abs_structure_details
;
 Flack x determined using 1839 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -1.1(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     286
_refine_ls_number_reflns         6055
_refine_ls_number_restraints     12
_refine_ls_restrained_S_all      1.027
_refine_ls_R_factor_all          0.1041
_refine_ls_R_factor_gt           0.0816
_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^)+(0.0950P)^2^+1.6055P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2045
_refine_ls_wR_factor_ref         0.2254
_reflns_Friedel_coverage         0.858
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.981
_reflns_number_gt                4733
_reflns_number_total             6055
_reflns_threshold_expression     'I > 2\s(I)'
_cod_duplicate_entry             7216180
_cod_data_source_file            c4ce00605d2.cif
_cod_data_source_block           Compound4
_cod_database_code               7217996
_shelx_estimated_absorpt_t_min   0.975
_shelx_estimated_absorpt_t_max   0.992
_shelxl_version_number           2014-3
_shelx_res_checksum              45822