Fluorescence and photochromic properties of a series of new Zn(ii)/Cd(ii) coordination compounds with a flexible semi-rigid tetrazole‒viologen derivative
Xiao, Yu; Wang, Shuai-Hua; Zhao, Ya-Ping; Zheng, Fa-Kun; Guo, Guo-Cong; CrystEngComm 18 (2016) 2524–; doi:10.1039/C6CE00317F

data_7224502
_publ_section_title
;
 Fluorescence and photochromic properties of a series of new Zn(ii)/Cd(ii)
 coordination compounds with a flexible semi-rigid tetrazole--viologen
 derivative
;
_journal_issue                   14
_journal_name_full               CrystEngComm
_journal_page_first              2524
_journal_paper_doi               10.1039/C6CE00317F
_journal_volume                  18
_journal_year                    2016
_chemical_formula_moiety         '[Cd2(N3)2(C2O4)(tzmb)2]n'
_chemical_formula_sum            'C26 H20 Cd2 N18 O4'
_chemical_formula_weight         873.40
_chemical_melting_point          ?
_chemical_name_common            '[Cd2(N3)2(C2O4)(tzmb)2]n'
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_block_doi                 10.5517/cc13kk18
_audit_creation_method           SHELXL-2014/6
_audit_update_record
;
2016-02-22 deposited with the CCDC.
2016-03-04 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90.338(6)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   8.9251(7)
_cell_length_b                   9.9975(8)
_cell_length_c                   16.7168(13)
_cell_measurement_reflns_used    4085
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.4971
_cell_measurement_theta_min      2.0371
_cell_volume                     1491.6(2)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2008)'
_computing_publication_material  'SHELXL-2014/6 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014/6 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXL-2014/6 (Sheldrick, 2014)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.957
_diffrn_measured_fraction_theta_max 0.964
_diffrn_measurement_device_type  'Rigaku Mercury CCD'
_diffrn_measurement_method       CCD_Profile_fitting
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0344
_diffrn_reflns_av_unetI/netI     0.0362
_diffrn_reflns_Laue_measured_fraction_full 0.957
_diffrn_reflns_Laue_measured_fraction_max 0.964
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            10829
_diffrn_reflns_point_group_measured_fraction_full 0.957
_diffrn_reflns_point_group_measured_fraction_max 0.964
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.492
_diffrn_reflns_theta_min         3.060
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    1.496
_exptl_absorpt_correction_T_max  0.688
_exptl_absorpt_correction_T_min  0.645
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sphere (Rigaku CrystalClear)'
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.945
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             860
_exptl_crystal_size_max          0.300
_exptl_crystal_size_mid          0.260
_exptl_crystal_size_min          0.250
_refine_diff_density_max         0.465
_refine_diff_density_min         -0.365
_refine_diff_density_rms         0.074
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.108
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     226
_refine_ls_number_reflns         3303
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.108
_refine_ls_R_factor_all          0.0306
_refine_ls_R_factor_gt           0.0267
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0308P)^2^+0.7561P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0647
_refine_ls_wR_factor_ref         0.0682
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3047
_reflns_number_total             3303
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6ce00317f2.cif
_cod_data_source_block           4
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value 'not measured' was changed to '?' -
the value is undefined or not given.

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' 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.

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

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

 Adding full bibliography for 7224500--7224503.cif.
;
_cod_database_code               7224502
_shelxl_version_number           2014/6
_shelx_res_checksum              39732