Methylammonium tetrafluoridoborate 18-crown-6 clathrate
Jin, Yu; Acta Crystallographica Section E 68 (2012) o225–; doi:10.1107/S1600536811054432

data_2233175
_publ_section_title
;
 Methylammonium tetrafluoridoborate 18-crown-6 clathrate
;
_journal_coeditor_code           HB6552
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o225
_journal_paper_doi               10.1107/S1600536811054432
_journal_volume                  68
_journal_year                    2012
_chemical_formula_iupac          'C H6 N +, B F4 -, C12 H24 O6'
_chemical_formula_moiety         'C H6 N +, B F4 -, C12 H24 O6'
_chemical_formula_sum            'C13 H30 B F4 N O6'
_chemical_formula_weight         383.19
_chemical_name_common
;
Methylammonium tetrafluoroborate--18-crown-6 (1/1)
;
_chemical_name_systematic
;
Methylammonium tetrafluoroborate--1,4,7,10,13,16-hexaoxacyclooctadecane (1/1)
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 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                 116.90(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   24.375(5)
_cell_length_b                   8.5404(17)
_cell_length_c                   21.345(4)
_cell_measurement_reflns_used    3450
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      55.28
_cell_measurement_theta_min      6.21
_cell_volume                     3962.6(17)
_computing_cell_refinement       'CrystalClear (Rigaku, 2005)'
_computing_data_collection       'CrystalClear (Rigaku, 2005)'
_computing_data_reduction        'CrystalClear (Rigaku, 2005)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Rigaku Mercury CCD'
_diffrn_measurement_method       \w
_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  0.0605
_diffrn_reflns_av_sigmaI/netI    0.0521
_diffrn_reflns_limit_h_max       31
_diffrn_reflns_limit_h_min       -31
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            19676
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.06
_exptl_absorpt_coefficient_mu    0.120
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.4887
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(CrystalClear; Rigaku, 2005)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.285
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1632
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.251
_refine_diff_density_min         -0.194
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.032
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     265
_refine_ls_number_reflns         4519
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.032
_refine_ls_R_factor_all          0.1508
_refine_ls_R_factor_gt           0.0727
_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^)+(0.0967P)^2^+1.8449P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1845
_refine_ls_wR_factor_ref         0.2262
_reflns_number_gt                2155
_reflns_number_total             4519
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hb6552.cif
_cod_data_source_block           I
_cod_original_cell_volume        3962.7(14)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               2233175
_cod_database_fobs_code          2233175