Design, Synthesis, and Characterization of Binuclear Ni(II) Complexes with Inherent Helical Chirality
Vadim A. Soloshonok; Hisanori Ueki; Journal of the American Chemical Society 129 (2007) 2426–2427; doi:10.1021/ja0671215

data_4109145
_publ_contact_author
; 
   Prof. Soloshonok, Vadim A.  
   Department of Chemistry and Biochemistry
   University of Oklahoma 
   620 Parrington Oval, Room 208
   Norman, OK  73019-3051  USA 
;
_publ_contact_author_email       vadim@ou.edu
_publ_contact_author_fax         1(405)3256111
_publ_contact_author_phone       1(405)3258279
_publ_section_title
;
 Design, Synthesis, and Characterization of Binuclear Ni(II) Complexes
 with Inherent Helical Chirality
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              2426
_journal_page_last               2427
_journal_paper_doi               10.1021/ja0671215
_journal_volume                  129
_journal_year                    2007
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C50 H46 N6 Ni2 O2, 2(C H2 Cl2)'
_chemical_formula_sum            'C52 H50 Cl4 N6 Ni2 O2'
_chemical_formula_weight         1050.20
_chemical_melting_point          581
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           18
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2 2ab'
_symmetry_space_group_name_H-M   'P 21 21 2'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   15.3554(8)
_cell_length_b                   12.2744(7)
_cell_length_c                   12.4945(7)
_cell_measurement_reflns_used    5683
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      25.4
_cell_measurement_theta_min      3.8
_cell_volume                     2354.9(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.979
_diffrn_measured_fraction_theta_max 0.979
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       ' 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  0.0196
_diffrn_reflns_av_sigmaI/netI    0.0291
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            20026
_diffrn_reflns_theta_full        28.27
_diffrn_reflns_theta_max         28.27
_diffrn_reflns_theta_min         1.63
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.076
_exptl_absorpt_correction_T_max  0.9893
_exptl_absorpt_correction_T_min  0.6608
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   Bruker(2001)SADABS,BrukerAXSInc.,Madison,WI
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.481
_exptl_crystal_description       plate
_exptl_crystal_F_000             1088
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.942
_refine_diff_density_min         -0.462
_refine_diff_density_rms         0.064
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.013(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     298
_refine_ls_number_reflns         5632
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.0278
_refine_ls_R_factor_gt           0.0270
_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^)+(0.0441P)^2^+0.4572P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0712
_refine_ls_wR_factor_ref         0.0717
_reflns_number_gt                5459
_reflns_number_total             5632
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0671215si20070122_063031_6.cif
_cod_data_source_block           (M)-9
_cod_database_code               4109145