Zn(ii) coordination architectures with mixed ligands of dipyrido[3,2-d ∶ 2′,3′-f]quinoxaline/2,3-di-2-pyridylquinoxaline and benzenedicarboxylate: syntheses, crystal structures, and photoluminescence properties
Wang, Xiu-Li; Bi, Yan-Feng; Liu, Guo-Cheng; Lin, Hong-Yan; Hu, Tong-Liang; Bu, Xian-He; CrystEngComm 10 (2008) 349–; doi:10.1039/b706071h

data_7201504
_publ_section_title
;
 Zn(ii) coordination architectures with mixed ligands of
 dipyrido[3,2-d&#x2009;&#x2236;&#x2009;2&#x2032;,3&#x2032;-f]quinoxaline/2,3-di-2-pyridylquinoxaline
 and benzenedicarboxylate: syntheses, crystal structures, and
 photoluminescence properties
;
_journal_issue                   3
_journal_name_full               CrystEngComm
_journal_page_first              349
_journal_paper_doi               10.1039/b706071h
_journal_volume                  10
_journal_year                    2008
_chemical_formula_sum            'C22 H14 N4 O5 Zn'
_chemical_formula_weight         479.76
_chemical_name_systematic
;
?
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   13.6117(18)
_cell_length_b                   14.957(2)
_cell_length_c                   18.604(3)
_cell_measurement_reflns_used    3546
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      26.38
_cell_measurement_theta_min      2.19
_cell_volume                     3787.6(9)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      294(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker Smart 1000 CCD'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0715
_diffrn_reflns_av_sigmaI/netI    0.0541
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            20303
_diffrn_reflns_theta_full        26.38
_diffrn_reflns_theta_max         26.38
_diffrn_reflns_theta_min         2.19
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.344
_exptl_absorpt_correction_T_max  0.840
_exptl_absorpt_correction_T_min  0.748
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.683
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1952.0
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.282
_refine_diff_density_min         -0.379
_refine_diff_density_rms         0.067
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.999
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     297
_refine_ls_number_reflns         3873
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.999
_refine_ls_R_factor_all          0.0827
_refine_ls_R_factor_gt           0.0381
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0500P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0838
_refine_ls_wR_factor_ref         0.1022
_reflns_number_gt                2410
_reflns_number_total             3873
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b706071h.txt
_cod_data_source_block           zn2
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'orthorhombic ' changed to 'orthorhombic'
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_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_cell_volume        3787.4(9)
_cod_original_sg_symbol_H-M      'P b c a '
_cod_database_code               7201504