Ammonium scandium tetrafluoride
Nicholas F. Stephens; Philip Lightfoot; Acta Crystallographica Section C 62 (2006) i103–i105; doi:10.1107/S0108270106044520

data_2015675
_publ_section_title
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 Ammonium scandium tetrafluoride
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_journal_coeditor_code           BC3020
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              i103
_journal_page_last               i105
_journal_paper_doi               10.1107/S0108270106044520
_journal_volume                  62
_journal_year                    2006
_chemical_formula_iupac          'N H4 Sc F4'
_chemical_formula_moiety         'H4 N +, F4 Sc -'
_chemical_formula_sum            'F4 H4 N Sc'
_chemical_formula_weight         139.00
_chemical_name_systematic
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Ammonium scandium tetrafluoride
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_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2n 2a'
_symmetry_space_group_name_H-M   'P m c n'
_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                   7.862(2)
_cell_length_b                   8.088(2)
_cell_length_c                   13.503(4)
_cell_measurement_reflns_used    120
_cell_measurement_temperature    93(2)
_cell_measurement_theta_max      25.35
_cell_measurement_theta_min      2.52
_cell_volume                     858.6(4)
_computing_cell_refinement       CrystalClear
_computing_data_collection       'CrystalClear (Rigaku/MSC, 2005)'
_computing_data_reduction        CrystalClear
_computing_molecular_graphics    'DIAMOND (Brandenburg, 2001)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      93(2)
_diffrn_detector_area_resol_mean 14.6306
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Rigaku/MSC CCD area-detector'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0259
_diffrn_reflns_av_sigmaI/netI    0.0181
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            5191
_diffrn_reflns_theta_full        25.32
_diffrn_reflns_theta_max         25.32
_diffrn_reflns_theta_min         2.94
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    1.666
_exptl_absorpt_correction_T_max  0.9700
_exptl_absorpt_correction_T_min  0.8245
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 1999)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.151
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             544
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.03
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.396
_refine_diff_density_min         -0.398
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.114
_refine_ls_hydrogen_treatment    refxyz
_refine_ls_matrix_type           full
_refine_ls_number_parameters     75
_refine_ls_number_reflns         847
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.114
_refine_ls_R_factor_all          0.0435
_refine_ls_R_factor_gt           0.0281
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0519P)^2^+0.1485P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0908
_refine_ls_wR_factor_ref         0.1022
_reflns_number_gt                587
_reflns_number_total             847
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            bc3020.cif
_cod_data_source_block           I
_cod_depositor_comments
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The following automatic conversions were performed:

'_chemical_melting_point' value 'not measured' was changed to '?' -
the value is undefined or not given.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_chemical_melting_point' value 'not measured' was changed to '?' -
the value is undefined or not given.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
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_cod_database_code               2015675
_cod_database_fobs_code          2015675