Determination of Missing Crystal Structures in the 1-Alkyl-3-methylimidazolium Hexafluorophosphate Series: Implications on Structure‒Property Relationships
Endo, Takatsugu; Masu, Hyuma; Fujii, Kozo; Morita, Takeshi; Seki, Hiroko; Sen, Sabyasachi; Nishikawa, Keiko; Crystal Growth & Design 13 (2013) 5383–; doi:10.1021/cg401293g

data_4508541
_publ_section_title
;
 Determination of Missing Crystal Structures in the
 1-Alkyl-3-methylimidazolium Hexafluorophosphate Series: Implications on
 Structure--Property Relationships
;
_journal_issue                   12
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              5383
_journal_paper_doi               10.1021/cg401293g
_journal_volume                  13
_journal_year                    2013
_chemical_formula_sum            'C5 H9 F6 N2 P'
_chemical_formula_weight         242.11
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           140
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  '-I 4 2c'
_symmetry_space_group_name_H-M   'I 4/m c m'
_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            8
_cell_length_a                   8.5772(2)
_cell_length_b                   8.5772(2)
_cell_length_c                   25.7819(7)
_cell_measurement_reflns_used    1903
_cell_measurement_temperature    304
_cell_measurement_theta_max      65.19
_cell_measurement_theta_min      3.43
_cell_volume                     1896.73(8)
_computing_cell_refinement       'APEX2 (Bruker AXS, 2006)'
_computing_data_collection       'APEX2 '
_computing_data_reduction        'SAINT (Bruker AXS, 2004)'
_computing_molecular_graphics    'XSHEL (Bruker AXS,2002)'
_computing_publication_material  'XCIF (Bruker AXS, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      304
_diffrn_detector_area_resol_mean 8.333
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker APEXII CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  'Bruker Helios multilayer confocal mirror'
_diffrn_radiation_source         'Bruker TXS fine-focus rotating anode'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0312
_diffrn_reflns_av_sigmaI/netI    0.0211
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            4309
_diffrn_reflns_theta_full        65.66
_diffrn_reflns_theta_max         65.66
_diffrn_reflns_theta_min         3.43
_exptl_absorpt_coefficient_mu    3.235
_exptl_absorpt_correction_T_max  0.7380
_exptl_absorpt_correction_T_min  0.7380
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
;
SADABS Sheldrick 1996
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.696
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             976
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.396
_refine_diff_density_min         -0.360
_refine_diff_density_rms         0.064
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.121
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     45
_refine_ls_number_reflns         468
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.121
_refine_ls_R_factor_all          0.0610
_refine_ls_R_factor_gt           0.0575
_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^)+(0.1434P)^2^+0.4371P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1901
_refine_ls_wR_factor_ref         0.2001
_reflns_number_gt                407
_reflns_number_total             468
_reflns_threshold_expression     >2sigma
_cod_data_source_file            cg401293g_si_002.cif
_cod_data_source_block           u130213mas1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Tetragonal' changed to 'tetragonal'
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_sg_symbol_H-M      I4/mcm
_cod_database_code               4508541