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_7205718
_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            'C36 H42 N20 Ni O6'
_chemical_formula_weight         909.61
_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                94.7990(10)
_cell_angle_beta                 102.3860(10)
_cell_angle_gamma                109.5010(10)
_cell_formula_units_Z            1
_cell_length_a                   8.2524(3)
_cell_length_b                   9.4588(3)
_cell_length_c                   13.3920(4)
_cell_measurement_reflns_used    7856
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.13
_cell_measurement_theta_min      2.32
_cell_volume                     948.66(5)
_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    'SIR92 (Giacovazzo et al, 1993)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.770
_diffrn_measured_fraction_theta_max 0.770
_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  0.0527
_diffrn_reflns_av_sigmaI/netI    0.0582
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            15977
_diffrn_reflns_theta_full        31.48
_diffrn_reflns_theta_max         31.48
_diffrn_reflns_theta_min         2.32
_exptl_absorpt_coefficient_mu    0.590
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.592
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             474
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.885
_refine_diff_density_min         -0.499
_refine_diff_density_rms         0.070
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.686
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     286
_refine_ls_number_reflns         4846
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.686
_refine_ls_R_factor_all          0.0523
_refine_ls_R_factor_gt           0.0390
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1181P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1124
_refine_ls_wR_factor_ref         0.1171
_reflns_number_gt                3564
_reflns_number_total             4846
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0ce00703j.txt
_cod_data_source_block           i8137_0m
_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_sg_symbol_H-M      P-1
_cod_database_code               7205718