Using structural modularity in cocrystals to engineer properties: elasticity
Subhankar; Saha; Gautam; R.; Desiraju; Chem.Commun. 52 (2016) 7676–; doi:

data_7119360
_publ_section_title
;
 Using structural modularity in cocrystals to engineer properties:
 elasticity
;
_journal_name_full               Chem.Commun.
_journal_page_first              7676
_journal_volume                  52
_journal_year                    2016
_chemical_formula_sum            'C9 H6 I2 N O3'
_chemical_formula_weight         429.95
_chemical_name_systematic        'Pyrazine; 3,5-diiodosalicylic acid'
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014
_audit_update_record
;
2016-05-16 deposited with the CCDC.
2016-05-19 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 96.051(8)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   27.78(3)
_cell_length_b                   4.706(4)
_cell_length_c                   17.566(16)
_cell_measurement_reflns_used    4171
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      33.7
_cell_measurement_theta_min      1.8
_cell_volume                     2284(4)
_computing_cell_refinement
;
CrystalClear-SM Expert 2.0 rc14 (Rigaku, 2009)
;
_computing_data_collection
;
CrystalClear-SM Expert 2.0 rc14 (Rigaku, 2009)
;
_computing_data_reduction
;
CrystalClear-SM Expert 2.0 rc14 (Rigaku, 2009)
;
_computing_structure_refinement  'SHELXL-14 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXL-14 (Sheldrick, 2014)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 13.6612
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device
;
XtaLABmini: Fixed Chi 2 circle
;
_diffrn_measurement_device_type
;
Rigaku Mercury375R (2x2 bin mode)
;
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1433
_diffrn_reflns_av_unetI/netI     0.0859
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       34
_diffrn_reflns_limit_h_min       -34
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            10048
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.997
_diffrn_reflns_theta_min         1.474
_exptl_absorpt_coefficient_mu    5.494
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.679
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    2.501
_exptl_crystal_description       Block
_exptl_crystal_F_000             1576
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent'
_exptl_crystal_size_max          0.120
_exptl_crystal_size_mid          0.110
_exptl_crystal_size_min          0.100
_refine_diff_density_max         1.891
_refine_diff_density_min         -1.355
_refine_diff_density_rms         0.295
_refine_ls_extinction_coef       .
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.204
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     136
_refine_ls_number_reflns         2243
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.204
_refine_ls_R_factor_all          0.0460
_refine_ls_R_factor_gt           0.0417
_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^)+(0.0822P)^2^+0.0970P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1231
_refine_ls_wR_factor_ref         0.1541
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                2108
_reflns_number_total             2243
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6cc03226e5.cif
_cod_data_source_block           E5
_cod_database_code               7119360
_shelx_estimated_absorpt_t_min   0.558
_shelx_estimated_absorpt_t_max   0.610
_shelxl_version_number           2014-3
_shelx_res_checksum              77692
_solvent_exptl_crystal_recrystallization_method MeOH