Anion- and temperature-dependent assembly, crystal structures and luminescence properties of six new Cd(ii) coordination polymers based on 2,3,5,6-tetrakis(2-pyridyl)pyrazine
Wan, Jun; Cai, Song-Liang; Zhang, Kai; Li, Chao-Jie; Feng, Ying; Fan, Jun; Zheng, Sheng-Run; Zhang, Wei-Guang; CrystEngComm 18 (2016) 5164–; doi:10.1039/C6CE00853D

data_7225264
_publ_section_title
;
 Anion- and temperature-dependent assembly, crystal structures and
 luminescence properties of six new Cd(ii) coordination polymers based on
 2,3,5,6-tetrakis(2-pyridyl)pyrazine
;
_journal_issue                   27
_journal_name_full               CrystEngComm
_journal_page_first              5164
_journal_paper_doi               10.1039/C6CE00853D
_journal_volume                  18
_journal_year                    2016
_chemical_formula_sum            'C24 H16 Cd3 N24'
_chemical_formula_weight         977.81
_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
_audit_update_record
;
2016-04-26 deposited with the CCDC.
2016-05-17 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 95.266(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   21.508(4)
_cell_length_b                   14.936(3)
_cell_length_c                   10.109(2)
_cell_measurement_reflns_used    2024
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      24.41
_cell_measurement_theta_min      2.55
_cell_volume                     3233.7(11)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_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  0.0419
_diffrn_reflns_av_sigmaI/netI    0.0496
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            7971
_diffrn_reflns_theta_full        24.98
_diffrn_reflns_theta_max         24.98
_diffrn_reflns_theta_min         1.66
_exptl_absorpt_coefficient_mu    2.016
_exptl_absorpt_correction_T_max  0.8160
_exptl_absorpt_correction_T_min  0.6528
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    2.009
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1888
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.879
_refine_diff_density_min         -0.510
_refine_diff_density_rms         0.142
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     233
_refine_ls_number_reflns         2828
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0510
_refine_ls_R_factor_gt           0.0366
_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^)+(0.0568P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0960
_refine_ls_wR_factor_ref         0.1060
_reflns_number_gt                2198
_reflns_number_total             2828
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6ce00853d2.cif
_cod_data_source_block           4
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4268 2015-11-12 08:31:59Z antanas 

 Adding full bibliography for 7225261--7225266.cif.
;
_cod_original_cell_volume        3233.5(11)
_cod_original_sg_symbol_H-M      C2/C
_cod_database_code               7225264