Synergistic effect of 2[V2P2O14]∞ layers and hydrogen bonds inducing large birefringence in M(VO)2(PO4)2·4H2O (M = Ca, Sr, Ba) system
Wang, Xinmei; Qi, Lu; Wu, Lei; Zhang, Ruixin; Abudoureheman, Maierhaba; Lv, Jiarong; Wang, Peng; Dong, Xiaoyu; Jing, Qun; Chen, Zhaohui; CrystEngComm  (2022) –; doi:10.1039/D2CE00728B

data_7245327
_publ_section_title
;
 Synergistic effect of 2[V2P2O14]\\infty layers and hydrogen bonds
 inducing large birefringence in M(VO)2(PO4)2&#x00B7;4H2O (M = Ca, Sr, Ba)
 system
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_journal_name_full               CrystEngComm
_journal_paper_doi               10.1039/D2CE00728B
_journal_year                    2022
_chemical_absolute_configuration ad
_chemical_formula_moiety         'Ba H8 O14 P2 V2'
_chemical_formula_sum            'Ba H8 O14 P2 V2'
_chemical_formula_weight         533.22
_space_group_crystal_system      monoclinic
_space_group_IT_number           7
_space_group_name_Hall           'P -2yac'
_space_group_name_H-M_alt        'P 1 n 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     dual
_audit_creation_date             2021-08-04
_audit_creation_method
;
Olex2 1.5
(compiled 2021.07.19 svn.r715e62df for OlexSys, GUI svn.r6383)
;
_audit_update_record
;
2022-02-24 deposited with the CCDC.	2022-08-16 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90.1650(10)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   6.3867(8)
_cell_length_b                   12.7855(16)
_cell_length_c                   6.3889(8)
_cell_measurement_reflns_used    1484
_cell_measurement_temperature    297
_cell_measurement_theta_max      27.338
_cell_measurement_theta_min      3.187
_cell_volume                     521.70(11)
_computing_cell_refinement       'SAINT V8.38A (Bruker, 2018)'
_computing_data_reduction        'SAINT V8.38A (Bruker, 2018)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT  (Sheldrick, 2015)'
_diffrn_ambient_temperature      297
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0187
_diffrn_reflns_av_unetI/netI     0.0366
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            3164
_diffrn_reflns_point_group_measured_fraction_full 0.913
_diffrn_reflns_point_group_measured_fraction_max 0.892
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.385
_diffrn_reflns_theta_min         3.187
_diffrn_source_current           30.0
_diffrn_source_power             1.35
_diffrn_source_voltage           45.0
_exptl_absorpt_coefficient_mu    5.877
_exptl_absorpt_correction_T_max  0.7455
_exptl_absorpt_correction_T_min  0.6827
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.0370 before and 0.0275 after correction.
The Ratio of minimum to maximum transmission is 0.9158.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    3.394
_exptl_crystal_description       block
_exptl_crystal_F_000             504
_exptl_crystal_size_max          0.07
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.503
_refine_diff_density_min         -0.499
_refine_diff_density_rms         0.125
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.23(4)
_refine_ls_extinction_coef       0.0065(8)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2018/3 (Sheldrick 2018)'
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     174
_refine_ls_number_reflns         2123
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0305
_refine_ls_R_factor_gt           0.0248
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0250P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0524
_refine_ls_wR_factor_ref         0.0551
_reflns_Friedel_coverage         0.784
_reflns_Friedel_fraction_full    0.830
_reflns_Friedel_fraction_max     0.789
_reflns_number_gt                1848
_reflns_number_total             2123
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2ce00728b2.cif
_cod_data_source_block           ba
_cod_database_code               7245327
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.892
_shelx_estimated_absorpt_t_min   0.684
_olex2_refinement_description
;
1. Twinned data refinement
 Scales: 0.77(4)
 0.23(4)
2. Fixed Uiso
 At 1.5 times of:
  All O(H,H) groups
3.a Riding coordinates:
 O2(H2a,H2b), O6(H6a,H6b), O13(H13a,H13b), O14(H14a,H14b)
;
_shelx_res_checksum              65233
_shelx_hkl_checksum              42896
_olex2_submission_special_instructions 'No special instructions were received'