Bite-Angle-Regulated Coordination Geometries: Tetrahedral and Trigonal Bipyramidal in Ni(II) with Biphenyl-Appended (2-Pyridyl)alkylamine <i>N</i>,<i>N</i>'-Bidentate Ligands.
Sasi, Divya; Ramkumar, Venkatachalam; Murthy, Narasimha N.; ACS omega 2 (2017) 2474–2481; doi:10.1021/acsomega.7b00119

data_4516843
_publ_section_title
;
 Bite-Angle-Regulated Coordination Geometries: Tetrahedral and Trigonal
 Bipyramidal in Ni(II) with Biphenyl-Appended (2-Pyridyl)alkylamine
 <i>N</i>,<i>N</i>'-Bidentate Ligands.
;
_journal_issue                   6
_journal_name_full               'ACS omega'
_journal_page_first              2474
_journal_page_last               2481
_journal_paper_doi               10.1021/acsomega.7b00119
_journal_volume                  2
_journal_year                    2017
_chemical_formula_moiety         'C21 H20 Br2 N2 Ni'
_chemical_formula_sum            'C21 H20 Br2 N2 Ni'
_chemical_formula_weight         518.92
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_cell_setting           monoclinic
_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                 92.8120(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.8898(2)
_cell_length_b                   16.2357(5)
_cell_length_c                   13.6964(4)
_cell_measurement_reflns_used    5652
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      27.60
_cell_measurement_theta_min      2.51
_cell_volume                     1974.45(9)
_computing_cell_refinement       'APEX II, Bruker, 2004'
_computing_data_collection       'APEX II, Bruker, 2004'
_computing_data_reduction        'SAINT, Bruker, 2004'
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 2013)'
_computing_publication_material  'SHELXS-2013 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXS-2013 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-2013 (Sheldrick, 2008)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.946
_diffrn_measured_fraction_theta_max 0.896
_diffrn_measurement_device_type  'Bruker ApexII 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  0.0212
_diffrn_reflns_av_sigmaI/netI    0.0253
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            15298
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.47
_diffrn_reflns_theta_min         2.51
_exptl_absorpt_coefficient_mu    5.037
_exptl_absorpt_correction_T_max  0.5187
_exptl_absorpt_correction_T_min  0.2716
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS(Bruker,2004)
_exptl_crystal_colour            Blue
_exptl_crystal_density_diffrn    1.746
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Rectangular
_exptl_crystal_F_000             1032
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.708
_refine_diff_density_min         -0.836
_refine_diff_density_rms         0.065
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     235
_refine_ls_number_reflns         4473
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0461
_refine_ls_R_factor_gt           0.0280
_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^)+(0.0315P)^2^+1.2704P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0639
_refine_ls_wR_factor_ref         0.0710
_reflns_number_gt                3444
_reflns_number_total             4473
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ao7b00119_si_002.cif
_cod_data_source_block           C21H20Br2N2Ni
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4516843