Chiral frameworks of ammonium zinc(ii) sulfate synthesized using an achiral template
Guo, Dong-Wei; Yao, Shi-Yan; Zhang, Gao; Tian, Yun-Qi; CrystEngComm 12 (2010) 2989–; doi:10.1039/c000475h

data_7212470
_publ_section_title
;
 Chiral frameworks of ammonium zinc(ii) sulfate synthesized using an
 achiral template
;
_journal_issue                   10
_journal_name_full               CrystEngComm
_journal_page_first              2989
_journal_paper_doi               10.1039/c000475h
_journal_volume                  12
_journal_year                    2010
_chemical_formula_moiety         (NH4)2[Zn(SO4)2]
_chemical_formula_sum            'H8 N2 O8 S2 Zn'
_chemical_formula_weight         293.57
_chemical_name_common            'zinc sulfate'
_chemical_name_systematic
;
?
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 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                   6.8592(9)
_cell_length_b                   8.9750(11)
_cell_length_c                   13.7210(17)
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      24.99
_cell_measurement_theta_min      2.71
_cell_volume                     844.68(18)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART 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  0.0379
_diffrn_reflns_av_sigmaI/netI    0.0488
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            4272
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         2.71
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.423
_exptl_absorpt_correction_T_max  0.2848
_exptl_absorpt_correction_T_min  0.2642
_exptl_absorpt_correction_type   'empirical used sadabs'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.309
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             592
_exptl_crystal_size_max          0.53
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.49
_refine_diff_density_max         0.292
_refine_diff_density_min         -0.384
_refine_diff_density_rms         0.086
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.055(19)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.994
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     150
_refine_ls_number_reflns         1491
_refine_ls_number_restraints     13
_refine_ls_restrained_S_all      0.989
_refine_ls_R_factor_all          0.0363
_refine_ls_R_factor_gt           0.0290
_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^)+(0.0248P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0560
_refine_ls_wR_factor_ref         0.0593
_reflns_number_gt                1322
_reflns_number_total             1491
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c000475h.txt
_cod_data_source_block           2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7212470