Zinc(ii) coordination polymers of tetrakis(4-pyridyl)cyclobutane and various dicarboxylates: Syntheses, structures and luminescent properties
Dai, Ming; Yan, Wen-Yan; Ren, Zhi-Gang; Wang, Hui-Fang; Gong, Wei-Jie; Li, Fu-Ling; Zhao, Xin; Li, Hong-Xi; Lang, Jian-Ping; CrystEngComm 14 (2012) 6230–; doi:10.1039/c2ce25482d

data_7208497
_publ_section_title
;
 Zinc(ii) coordination polymers of tetrakis(4-pyridyl)cyclobutane and
 various dicarboxylates: Syntheses, structures and luminescent properties
;
_journal_issue                   19
_journal_name_full               CrystEngComm
_journal_page_first              6230
_journal_paper_doi               10.1039/c2ce25482d
_journal_volume                  14
_journal_year                    2012
_chemical_formula_moiety         'C20 H17 N3 O5 Zn'
_chemical_formula_sum            'C20 H17 N3 O5 Zn'
_chemical_formula_weight         444.74
_chemical_name_systematic
;
?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 103.35(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   30.900(6)
_cell_length_b                   7.6409(15)
_cell_length_c                   16.156(3)
_cell_measurement_reflns_used    5032
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      25.3491
_cell_measurement_theta_min      3.1052
_cell_volume                     3711.4(13)
_computing_cell_refinement       'CrystalClear, Ver. 1.30 (Rigaku/MSC, 2001)'
_computing_data_collection       'CrystalClear, Ver. 1.30 (Rigaku/MSC, 2001)'
_computing_data_reduction
'CrystalStructure, Ver. 3.60 (Rigaku/MSC, 2004)'
_computing_molecular_graphics    'SHELXL-97 (Sheldrick, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_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  0.0906
_diffrn_reflns_av_sigmaI/netI    0.0709
_diffrn_reflns_limit_h_max       36
_diffrn_reflns_limit_h_min       -31
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            16540
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.11
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.363
_exptl_absorpt_correction_T_max  0.8758
_exptl_absorpt_correction_T_min  0.6853
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Jacobson, R. (1998) Private communication to Rigaku Corp.'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.592
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             1824
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.188
_refine_diff_density_min         -0.576
_refine_diff_density_rms         0.134
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.209
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     264
_refine_ls_number_reflns         3257
_refine_ls_number_restraints     54
_refine_ls_restrained_S_all      1.199
_refine_ls_R_factor_all          0.1493
_refine_ls_R_factor_gt           0.1197
_refine_ls_shift/su_max          0.080
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1736P)^2^+12.6512P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3091
_refine_ls_wR_factor_ref         0.3334
_reflns_number_gt                2473
_reflns_number_total             3257
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ce25482d.txt
_cod_data_source_block           5
_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.

'_exptl_absorpt_correction_type' value 'Multi-scan'
changed to 'multi-scan' 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_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        3711.6(13)
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7208497