Understanding the Effects of Ionicity in Salts, Solvates, Co-Crystals, Ionic Co-Crystals, and Ionic Liquids, Rather than Nomenclature, Is Critical to Understanding Their Behavior
Kelley, Steven P.; Narita, Asako; Holbrey, John D.; Green, Keith D.; Reichert, W. Matthew; Rogers, Robin D.; Crystal Growth & Design 13 (2013) 965–; doi:10.1021/cg4000439

data_4507672
_publ_section_title
;
 Understanding the Effects of Ionicity in Salts, Solvates, Co-Crystals,
 Ionic Co-Crystals, and Ionic Liquids, Rather than Nomenclature, Is
 Critical to Understanding Their Behavior
;
_journal_issue                   3
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              965
_journal_paper_doi               10.1021/cg4000439
_journal_volume                  13
_journal_year                    2013
_chemical_formula_sum            'C10 H17 Cl N4'
_chemical_formula_weight         228.73
_chemical_name_common            '1,2-dimethylimidazolium chloride'
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.737(4)
_cell_length_b                   9.975(3)
_cell_length_c                   8.836(2)
_cell_measurement_reflns_used    902
_cell_measurement_temperature    173(2)
_cell_volume                     1210.8(6)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0193
_diffrn_reflns_av_sigmaI/netI    0.0143
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            5070
_diffrn_reflns_theta_full        23.22
_diffrn_reflns_theta_max         23.22
_diffrn_reflns_theta_min         2.04
_exptl_absorpt_coefficient_mu    0.291
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.255
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             488
_exptl_crystal_size_max          0.29
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.132
_refine_diff_density_min         -0.146
_refine_diff_density_rms         0.034
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.49(6)
_refine_ls_extinction_coef       0.0248(19)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     205
_refine_ls_number_reflns         1685
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_refine_ls_R_factor_all          0.0224
_refine_ls_R_factor_gt           0.0222
_refine_ls_shift/su_max          0.100
_refine_ls_shift/su_mean         0.015
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details     '0.0434, 0.1399'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0593
_refine_ls_wR_factor_ref         0.0596
_reflns_number_gt                1664
_reflns_number_total             1685
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg4000439_si_002.cif
_cod_data_source_block           HDmimClxDmim
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        1210.8(5)
_cod_original_sg_symbol_H-M      Pca2(1)
_cod_database_code               4507672