A series of new 3-D boratopolyoxovanadates containing five types of [KxOy]n building units
An, Litao; Zhou, Jian; Xiao, Hong-Ping; Liu, Xing; Zou, Huahong; Pan, Chun-Yang; Liu, Meihua; Li, Jianhui; CrystEngComm 16 (2014) 4236–; doi:10.1039/c4ce00073k

data_7215727
_publ_section_title
;
 A series of new 3-D boratopolyoxovanadates containing five types of
 [KxOy]n building units
;
_journal_issue                   20
_journal_name_full               CrystEngComm
_journal_page_first              4236
_journal_paper_doi               10.1039/c4ce00073k
_journal_volume                  16
_journal_year                    2014
_chemical_formula_moiety         'B20 V6 O42 (O H)8 (H2 O) [K8 (H2 O)6]'
_chemical_formula_sum            'B20 H22 K8 O57 V6'
_chemical_formula_weight         1768.78
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 96.706(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   12.678(12)
_cell_length_b                   12.682(12)
_cell_length_c                   15.440(14)
_cell_measurement_temperature    296(2)
_cell_volume                     2465(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean 7.31
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Rigaku Mercury'
_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  0.0148
_diffrn_reflns_av_sigmaI/netI    0.0151
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            13610
_diffrn_reflns_theta_full        25.10
_diffrn_reflns_theta_max         25.10
_diffrn_reflns_theta_min         1.97
_exptl_absorpt_coefficient_mu    1.913
_exptl_absorpt_correction_T_max  0.8803
_exptl_absorpt_correction_T_min  0.8449
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    2.380
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             1692
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.883
_refine_diff_density_min         -1.410
_refine_diff_density_rms         0.125
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.094
_refine_ls_hydrogen_treatment    NONE
_refine_ls_matrix_type           full
_refine_ls_number_parameters     412
_refine_ls_number_reflns         4386
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.094
_refine_ls_R_factor_all          0.0408
_refine_ls_R_factor_gt           0.0393
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0564P)^2^+12.6176P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1162
_refine_ls_wR_factor_ref         0.1172
_reflns_number_gt                4203
_reflns_number_total             4386
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ce00073k3.cif
_cod_data_source_block           4
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7215727