Self-adaptation of a conformationally flexible yet restricted “piperazine-pyrazine” building block toward the design of coordination polymers
Lee, Chin-Fen; Hsu, Shu-Chun; Chan, Kai-Chao; Nurnabi, Mohammad; Lee, Chung-Chou; Wu, Jing-Yun; Lai, Long-Li; Lu, Kuang-Lieh; CrystEngComm 13 (2011) 2960–; doi:10.1039/c0ce00703j

data_7205721
_publ_section_title
;
 Self-adaptation of a conformationally flexible yet restricted
 &#x201C;piperazine-pyrazine&#x201D; building block toward the design
 of coordination polymers
;
_journal_issue                   8
_journal_name_full               CrystEngComm
_journal_page_first              2960
_journal_paper_doi               10.1039/c0ce00703j
_journal_volume                  13
_journal_year                    2011
_chemical_formula_sum            'C22 H16 Cd2 N6 O8'
_chemical_formula_weight         717.21
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                82.62(3)
_cell_angle_beta                 67.51(3)
_cell_angle_gamma                84.25(3)
_cell_formula_units_Z            1
_cell_length_a                   7.4983(15)
_cell_length_b                   8.6759(17)
_cell_length_c                   9.793(2)
_cell_measurement_temperature    293(2)
_cell_volume                     582.8(2)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0486
_diffrn_reflns_av_sigmaI/netI    0.0617
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            9883
_diffrn_reflns_theta_full        27.64
_diffrn_reflns_theta_max         27.64
_diffrn_reflns_theta_min         2.26
_exptl_absorpt_coefficient_mu    1.887
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.043
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             350
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.527
_refine_diff_density_min         -0.782
_refine_diff_density_rms         0.122
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.005
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     172
_refine_ls_number_reflns         2690
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.005
_refine_ls_R_factor_all          0.0516
_refine_ls_R_factor_gt           0.0347
_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^)+(0.0347P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0713
_refine_ls_wR_factor_ref         0.0748
_reflns_number_gt                2089
_reflns_number_total             2690
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0ce00703j.txt
_cod_data_source_block           i8239
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 1555 2011-01-17 13:19:09Z saulius 
;
_cod_original_cell_volume        582.9(2)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7205721