Beryllosilicate Frameworks and Zeolites
Jennifer A. Armstrong; Mark T. Weller; Journal of the American Chemical Society 132 (2010) 15679–15686; doi:10.1021/ja106313p

data_4103449
_publ_section_title
;
 Beryllosilicate Frameworks and Zeolites
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              15679
_journal_page_last               15686
_journal_paper_doi               10.1021/ja106313p
_journal_volume                  132
_journal_year                    2010
_chemical_formula_sum            'C0.4 Be1.6 K3.2 N0.4 O12 Si6.4'
_chemical_formula_weight         521.72
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_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            5
_cell_length_a                   12.7069(9)
_cell_length_b                   13.2309(7)
_cell_length_c                   13.9362(8)
_cell_measurement_temperature    293(2)
_cell_volume                     2343.0(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_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  0.1194
_diffrn_reflns_av_sigmaI/netI    0.0857
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            16498
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         2.92
_exptl_absorpt_coefficient_mu    1.228
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.849
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1290
_refine_diff_density_max         1.288
_refine_diff_density_min         -1.395
_refine_diff_density_rms         0.630
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.112
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     188
_refine_ls_number_reflns         2759
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.112
_refine_ls_R_factor_all          0.0973
_refine_ls_R_factor_gt           0.1266
_refine_ls_shift/su_max          0.096
_refine_ls_shift/su_mean         0.046
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1574
_refine_ls_wR_factor_ref         0.1315
_reflns_number_gt                2031
_reflns_number_total             2759
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            ja106313p_si_008.cif
_cod_data_source_block           2007jaa0011pnmaorder
_cod_original_formula_sum        'C0.40 Be1.60 K3.20 N0.40 O12 Si6.40'
_cod_database_code               4103449