The structural phase transition in SrV~6~O~11~
Hata, Yoshiaki; Kanke, Yasushi; Kita, Eiji; Acta Crystallographica Section C 66 (2010) i99–i102; doi:10.1107/S0108270110046299

data_2017879
_publ_section_title
;
 The structural phase transition in SrV~6~O~11~
;
_journal_coeditor_code           FA3226
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              i99
_journal_page_last               i102
_journal_paper_doi               10.1107/S0108270110046299
_journal_volume                  66
_journal_year                    2010
_chemical_formula_iupac          'Sr V6 O11'
_chemical_formula_structural     'Sr O11 V6'
_chemical_formula_sum            'O11 Sr V6'
_chemical_formula_weight         569.26
_chemical_name_systematic
;
strontium haxavanadium undecaoxide
;
_space_group_IT_number           194
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_Hall  '-P 6c 2c'
_symmetry_space_group_name_H-M   'P 63/m m c'
_atom_sites_solution_primary     isomor
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            2
_cell_length_a                   5.77730(10)
_cell_length_b                   5.77730(10)
_cell_length_c                   13.0852(3)
_cell_measurement_reflns_used    22
_cell_measurement_temperature    353
_cell_measurement_theta_max      44.50
_cell_measurement_theta_min      43.00
_cell_volume                     378.234(13)
_computing_cell_refinement       'CAD-4 (Enraf--Nonius, 1981)'
_computing_data_collection       'CAD-4 (Enraf--Nonius, 1981)'
_computing_data_reduction
;
SDP (Frenz, B. A. & Associates, Inc., 1985)
;
_computing_molecular_graphics    'VESTA (K. Momma <i>et al.</i>, 2008)'
_computing_publication_material  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      353
_diffrn_measured_fraction_theta_full 1.00
_diffrn_measurement_device       'Enraf--Nonius CAD-4'
_diffrn_measurement_method       \w/2\q-scan
_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  0.016
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            1290
_diffrn_reflns_theta_full        44.99
_diffrn_reflns_theta_max         44.99
_diffrn_reflns_theta_min         3.08
_diffrn_standards_decay_%        0.7
_diffrn_standards_interval_time  240
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    14.149
_exptl_absorpt_correction_T_max  0.532
_exptl_absorpt_correction_T_min  0.413
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
;
(SDP; Frenz, B. A. & Associates, Inc., 1985)
;
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    5.016
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             528
_exptl_crystal_size_max          0.310
_exptl_crystal_size_mid          0.135
_exptl_crystal_size_min          0.075
_refine_diff_density_max         0.835
_refine_diff_density_min         -0.807
_refine_ls_extinction_coef       0.061(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.369
_refine_ls_matrix_type           full
_refine_ls_number_parameters     26
_refine_ls_number_reflns         447
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.369
_refine_ls_R_factor_all          0.0209
_refine_ls_R_factor_gt           0.0205
_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^)+(0.0218P)^2^+0.2463P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0533
_refine_ls_wR_factor_ref         0.0535
_reflns_number_gt                447
_reflns_number_total             645
_reflns_threshold_expression     I>1.5\s(I)
_cod_data_source_file            fa3226.cif
_cod_data_source_block           I_353K
_cod_original_sg_symbol_Hall     -P6c2c
_cod_original_sg_symbol_H-M      P63/mmc
_cod_database_code               2017879
_cod_database_fobs_code          2017879