Solvent-controlled formation of four Ni(II) coordination polymers based on flexible bis(imidazole) ligand: syntheses, structural diversification, properties
Li, Xiu-Yuan; Liu, Xia-Xia; Yue, Kenfen; Wu, Ya-Pan; He, Tian; Yan, Ni; Wang, Yao-Yu; RSC Adv.  (2015) –; doi:10.1039/C5RA15397B

data_7222259
_publ_section_title
;
 Solvent-controlled formation of four Ni(II) coordination polymers based
 on flexible bis(imidazole) ligand: syntheses, structural diversification,
 properties
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C5RA15397B
_journal_year                    2015
_chemical_formula_sum            'C22 H27 Br N4 Ni O5'
_chemical_formula_weight         566.10
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_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_creation_method           SHELXL-97
_audit_update_record
;
2015-07-15 deposited with the CCDC.
2015-09-21 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 124.571(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.1506(11)
_cell_length_b                   16.0135(16)
_cell_length_c                   16.0539(12)
_cell_measurement_reflns_used    1100
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      18.50
_cell_measurement_theta_min      2.54
_cell_volume                     2360.4(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker SMART APEX II CCD area-detector'
_diffrn_measurement_method       '\f and \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  0.0691
_diffrn_reflns_av_sigmaI/netI    0.0860
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            11754
_diffrn_reflns_theta_full        25.05
_diffrn_reflns_theta_max         25.05
_diffrn_reflns_theta_min         2.00
_exptl_absorpt_coefficient_mu    2.556
_exptl_absorpt_correction_T_max  0.6852
_exptl_absorpt_correction_T_min  0.5347
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.593
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1160
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.16
_refine_diff_density_max         1.708
_refine_diff_density_min         -0.974
_refine_diff_density_rms         0.098
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.062
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     304
_refine_ls_number_reflns         4173
_refine_ls_number_restraints     58
_refine_ls_restrained_S_all      1.090
_refine_ls_R_factor_all          0.1056
_refine_ls_R_factor_gt           0.0625
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0704P)^2^+1.9471P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1479
_refine_ls_wR_factor_ref         0.1699
_reflns_number_gt                2571
_reflns_number_total             4173
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5ra15397b2.cif
_cod_data_source_block           1
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7222259