Cocrystallisation of succinic and fumaric acids with lutidines: a systematic study
Haynes, Delia A.; Jones, William; Motherwell, W. D. Samuel; CrystEngComm 8 (2006) 830–; doi:10.1039/b610294h

data_7203589
_publ_section_title
;
 Cocrystallisation of succinic and fumaric acids with lutidines: a
 systematic study
;
_journal_issue                   11
_journal_name_full               CrystEngComm
_journal_page_first              830
_journal_paper_doi               10.1039/b610294h
_journal_volume                  8
_journal_year                    2006
_chemical_formula_moiety         '2(C7 H9 N), C4 H6 O4'
_chemical_formula_sum            'C18 H24 N2 O4'
_chemical_formula_weight         332.39
_chemical_name_common            '2,4 lutidine succinic acid co-crystal'
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 96.20(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   4.8672(10)
_cell_length_b                   12.763(3)
_cell_length_c                   14.374(3)
_cell_measurement_reflns_used    4728
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     887.7(3)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius B.V. 1998)'
_computing_data_reduction
;
HKL Denzo and Scalepack (Otwinowski & Minor 1997)
;
_computing_publication_material  'SHELXL-97 (Sheldrick 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      180(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       'Thin slice \w and \f scans'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0631
_diffrn_reflns_av_sigmaI/netI    0.0674
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            5023
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         4.28
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_T_max  0.995
_exptl_absorpt_correction_T_min  0.786
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
multi-scan from symmetry-related measurements
Sortav (Blessing 1995)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.244
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             356
_exptl_crystal_size_max          0.46
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.286
_refine_diff_density_min         -0.355
_refine_diff_density_rms         0.109
_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     114
_refine_ls_number_reflns         2011
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.016
_refine_ls_R_factor_all          0.0870
_refine_ls_R_factor_gt           0.0496
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0685P)^2^+0.2305P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1219
_refine_ls_wR_factor_ref         0.1423
_reflns_number_gt                1406
_reflns_number_total             2011
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b610294h.txt
_cod_data_source_block           wj0431
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7203589