pH-Tuned self-assembly of organic‒inorganic hybrids based on different vanadate chains, Zn(ii) ions and flexible ligands: crystallizing in polar and centrosymmetric space group
Qin, Jun-Sheng; Du, Dong-Ying; Li, Shun-Li; Lan, Ya-Qian; Shao, Kui-Zhan; Su, Zhong-Min; CrystEngComm 13 (2011) 779–; doi:10.1039/c0ce00260g

data_7205220
_publ_section_title
;
 pH-Tuned self-assembly of organic--inorganic hybrids based on
 different vanadate chains, Zn(ii) ions and flexible ligands:
 crystallizing in polar and centrosymmetric space group
;
_journal_issue                   3
_journal_name_full               CrystEngComm
_journal_page_first              779
_journal_paper_doi               10.1039/c0ce00260g
_journal_volume                  13
_journal_year                    2011
_chemical_formula_moiety         'C20 H28 N8 O12 V4 Zn2'
_chemical_formula_sum            'C20 H28 N8 O12 V4 Zn2'
_chemical_formula_weight         907.00
_chemical_name_systematic
;
?
;
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 c 1'
_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                 97.2680(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.0130(4)
_cell_length_b                   9.2000(5)
_cell_length_c                   18.4820(8)
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.31
_cell_measurement_theta_min      2.16
_cell_volume                     3206.9(2)
_computing_cell_refinement       'SMART (Bruker, 1997)'
_computing_data_collection       'SMART (Bruker, 1997)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL-PLUS (Sheldrick, 1990)'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97(Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.937
_diffrn_measurement_device_type  'Bruker APEX CCD area-detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0402
_diffrn_reflns_av_sigmaI/netI    0.0432
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            9564
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.31
_diffrn_reflns_theta_min         2.16
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.659
_exptl_absorpt_correction_T_max  0.488
_exptl_absorpt_correction_T_min  0.444
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS(Sheldrick, 1996)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.879
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1808
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.29
_exptl_crystal_size_min          0.27
_refine_diff_density_max         0.813
_refine_diff_density_min         -0.637
_refine_diff_density_rms         0.088
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.008(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.999
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     415
_refine_ls_number_reflns         5145
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      0.998
_refine_ls_R_factor_all          0.0337
_refine_ls_R_factor_gt           0.0318
_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^)+(0.0413P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0719
_refine_ls_wR_factor_ref         0.0727
_reflns_number_gt                4841
_reflns_number_total             5145
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            C0CE00260G.TXT
_cod_data_source_block           2
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1555 2011-01-17 13:19:09Z saulius 
;
_cod_original_sg_symbol_Hall     C-2yc
_cod_original_sg_symbol_H-M      Cc
_cod_database_code               7205220