Crystal engineering of zinc(II) metal‒organic frameworks: role of steric bulk and angular disposition of coordinating sites of the ligands
Mondal, Raju; Bhunia, Manas Kumar; Dhara, Koushik; CrystEngComm 10 (2008) 1167–; doi:10.1039/b800908b

data_7201955
_publ_section_title
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 Crystal engineering of zinc(II) metal--organic frameworks: role of
 steric bulk and angular disposition of coordinating sites of the
 ligands
;
_journal_issue                   9
_journal_name_full               CrystEngComm
_journal_page_first              1167
_journal_paper_doi               10.1039/b800908b
_journal_volume                  10
_journal_year                    2008
_chemical_formula_sum            'C19 H20 N4 O4 Zn'
_chemical_formula_weight         433.76
_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                 120.240(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   19.5910(10)
_cell_length_b                   13.4860(7)
_cell_length_c                   19.1550(10)
_cell_measurement_reflns_used    5930
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      25.79
_cell_measurement_theta_min      2.4
_cell_volume                     4372.2(4)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean 8
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker APEX-2 CCD area detector'
_diffrn_measurement_method       '/w scan'
_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  0.0537
_diffrn_reflns_av_sigmaI/netI    0.0402
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            35495
_diffrn_reflns_theta_full        28.19
_diffrn_reflns_theta_max         28.19
_diffrn_reflns_theta_min         1.93
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    1.153
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.318
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    .
_exptl_crystal_description       needle
_exptl_crystal_F_000             1792
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.08
_refine_diff_density_max         1.068
_refine_diff_density_min         -0.225
_refine_diff_density_rms         0.076
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     281
_refine_ls_number_reflns         5341
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.0906
_refine_ls_R_factor_gt           0.0501
_refine_ls_shift/su_max          0.021
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0874P)^2^+1.3713P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1329
_refine_ls_wR_factor_ref         0.1546
_reflns_number_gt                3401
_reflns_number_total             5341
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            b800908b.txt
_cod_data_source_block           07rmd009
_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 1527 2010-12-29 10:47:43Z saulius 
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_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7201955