Supramolecular structure of ammonium polyoxoarsenates(iii)
Guńka, Piotr A.; Dranka, Maciej; Zachara, Janusz; CrystEngComm 13 (2011) 6163–; doi:10.1039/c1ce05158j

data_7215353
_publ_section_title
;
 Supramolecular structure of ammonium polyoxoarsenates(iii)
;
_journal_issue                   20
_journal_name_full               CrystEngComm
_journal_page_first              6163
_journal_paper_doi               10.1039/c1ce05158j
_journal_volume                  13
_journal_year                    2011
_chemical_formula_moiety         'As O2, H4 N'
_chemical_formula_sum            'As H4 N O2'
_chemical_formula_weight         124.96
_chemical_name_systematic
;
ammonium metaarsenate(III)
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.426(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.24562(17)
_cell_length_b                   4.73223(13)
_cell_length_c                   12.3051(4)
_cell_measurement_reflns_used    18603
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      37.7603
_cell_measurement_theta_min      3.3039
_cell_volume                     305.447(16)
_computing_cell_refinement       'CrysAlisPro (Oxford Diffraction Ltd. 2009)'
_computing_data_collection       'CrysAlisPro (Oxford Diffraction Ltd. 2009)'
_computing_data_reduction        'CrysAlisPro (Oxford Diffraction Ltd. 2009)'
_computing_molecular_graphics    'Diamond v3.2 (Brandenburg, 2010)'
_computing_publication_material
;
SHELXL-97 (Sheldrick, 1997)
PLATON, A.L.Spek (2010), Utrecht Univ., Utrecht, The Netherlands
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 10.3347
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device       '\k-geometry diffractometer'
_diffrn_measurement_device_type  'Xcalibur, Atlas, Gemini ultra'
_diffrn_measurement_method       'area detector \w 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  0.0756
_diffrn_reflns_av_sigmaI/netI    0.0413
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            31209
_diffrn_reflns_theta_full        37.81
_diffrn_reflns_theta_max         37.81
_diffrn_reflns_theta_min         3.31
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    10.879
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.20018
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.54 (release 04-12-2009 CrysAlis171 .NET)
(compiled Dec 4 2009,17:18:47)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.717
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_F_000             240
_exptl_crystal_size_max          0.69
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.166
_refine_diff_density_min         -1.540
_refine_diff_density_rms         0.187
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.188
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     41
_refine_ls_number_reflns         1610
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.188
_refine_ls_R_factor_all          0.0308
_refine_ls_R_factor_gt           0.0285
_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^)+(0.0211P)^2^+1.1134P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0676
_refine_ls_wR_factor_ref         0.0681
_reflns_number_gt                1506
_reflns_number_total             1610
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c1ce05158j.txt
_cod_data_source_block           aa_ump
_cod_original_cell_volume        305.446(15)
_cod_original_sg_symbol_Hall     -P_2ybc
_cod_database_code               7215353