Acetate as a model for aspartate-based CXCR4 chemokine receptor binding of cobalt and nickel complexes of cross-bridged tetraazamacrocycles.
Cain, Amy N.; Carder Freeman, TaRynn N; Roewe, Kimberly D.; Cockriel, David L.; Hasley, Travis R.; Maples, Randall D.; Allbritton, Elisabeth M. A.; D'Huys, Thomas; van Loy, Tom; Burke, Benjamin P.; Prior, Timothy J.; Schols, Dominique; Archibald, Stephen J.; Hubin, Timothy J.; Dalton transactions (Cambridge, England : 2003) 48 (2019) 2785–2801; doi:10.1039/c8dt04728f

data_7048807
_publ_section_title
;
 Acetate as a model for aspartate-based CXCR4 chemokine receptor binding
 of cobalt and nickel complexes of cross-bridged tetraazamacrocycles.
;
_journal_issue                   8
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              2785
_journal_page_last               2801
_journal_paper_doi               10.1039/c8dt04728f
_journal_volume                  48
_journal_year                    2019
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C26 H38 Cl2 N4 Ni '
_chemical_formula_sum            'C26 H38 Cl2 N4 Ni'
_chemical_formula_weight         536.21
_space_group_crystal_system      orthorhombic
_space_group_IT_number           20
_space_group_name_Hall           'C 2c 2'
_space_group_name_H-M_alt        'C 2 2 21'
_symmetry_space_group_name_Hall  'C 2c 2'
_symmetry_space_group_name_H-M   'C 2 2 21'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2016/6
_audit_update_record
;
2017-08-02 deposited with the CCDC.
2019-01-29 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.0137(16)
_cell_length_b                   13.3814(17)
_cell_length_c                   20.352(3)
_cell_measurement_reflns_used    17241
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      31.95
_cell_measurement_theta_min      2.23
_cell_volume                     2454.8(6)
_computing_cell_refinement       'X-AREA (Stoe & Cie, 2002)'
_computing_data_collection       'X-AREA (Stoe & Cie, 2002)'
_computing_data_reduction        'X-RED (Stoe & Cie, 2002)'
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 6.67
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Stoe IPDS2'
_diffrn_measurement_method       \w-scans
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0822
_diffrn_reflns_av_unetI/netI     0.0454
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            20304
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.080
_diffrn_reflns_theta_min         2.725
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    1.031
_exptl_absorpt_correction_T_max  0.924
_exptl_absorpt_correction_T_min  0.421
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 R.H. Blessing, Acta Cryst. (1995), A51, 33-38
;
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.451
_exptl_crystal_description       block
_exptl_crystal_F_000             1136
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.100
_refine_diff_density_max         0.302
_refine_diff_density_min         -0.374
_refine_diff_density_rms         0.052
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.48(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     151
_refine_ls_number_reflns         2722
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.0391
_refine_ls_R_factor_gt           0.0311
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0273P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0603
_refine_ls_wR_factor_ref         0.0620
_reflns_Friedel_coverage         0.766
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     1.000
_reflns_number_gt                2355
_reflns_number_total             2722
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8dt04728f2.cif
_cod_data_source_block           Ni1Cl2
_cod_depositor_comments
'Adding full bibliography for 7048799--7048808.cif.'
_cod_database_code               7048807
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_min   0.820
_shelx_estimated_absorpt_t_max   0.904
_shelx_res_checksum              8942