A Dinuclear Ni(I) System Having a Diradical Ni2N2 Diamond Core Resting State: Synthetic, Structural, Spectroscopic Elucidation, and Reductive Bond Splitting Reactions
Debashis Adhikari; Susanne Mossin; Falguni Basuli; Benjamin R. Dible; Mircea Chipara; Hongjun Fan; John C. Huffman; Karsten Meyer; Daniel J. Mindiola; Inorganic Chemistry 47 (2008) 10479–10490; doi:10.1021/ic801137p

data_4306289
_publ_section_title
;
A Dinuclear Ni(I) System Having a Diradical Ni2N2 Diamond Core Resting
State: Synthetic, Structural, Spectroscopic Elucidation, and Reductive Bond
Splitting Reactions
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              10479
_journal_page_last               10490
_journal_paper_doi               10.1021/ic801137p
_journal_volume                  47
_journal_year                    2008
_chemical_formula_moiety         '2(C52 H79 N2 Ni2 P4), C4 H8 O'
_chemical_formula_sum            'C54 H85 N2 Ni2 O0.5 P4'
_chemical_formula_weight         1011.54
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 98.806(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   20.8120(19)
_cell_length_b                   10.7704(10)
_cell_length_c                   23.604(2)
_cell_measurement_reflns_used    1436
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      24.44
_cell_measurement_theta_min      2.25
_cell_volume                     5228.6(8)
_computing_cell_refinement       'SAINT (Bruker, 1999)'
_computing_data_collection       'SMART (Bruker, 1999)'
_computing_data_reduction        'SAINT (Bruker, 1999), XTEL (local program)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_detector                 'CCD area detector'
_diffrn_detector_area_resol_mean 44.52
_diffrn_detector_type            'Bruker SMART 6000'
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_details
'   0.30 degree frames measured for 15.17 seconds each'
_diffrn_measurement_device       'three-circle goniometer with fixed chi'
_diffrn_measurement_device_type  'Bruker Platform goniometer'
_diffrn_measurement_method       '\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  0.1826
_diffrn_reflns_av_sigmaI/netI    0.1746
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            75761
_diffrn_reflns_theta_full        27.57
_diffrn_reflns_theta_max         27.57
_diffrn_reflns_theta_min         2.08
_diffrn_standards_decay_%        0.0
_exptl_absorpt_coefficient_mu    0.881
_exptl_absorpt_correction_T_max  0.947
_exptl_absorpt_correction_T_min  0.824
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            green/red?
_exptl_crystal_density_diffrn    1.285
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             2172
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.610
_refine_diff_density_min         -0.380
_refine_diff_density_rms         0.078
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.739
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     879
_refine_ls_number_reflns         12053
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.739
_refine_ls_R_factor_all          0.1100
_refine_ls_R_factor_gt           0.0454
_refine_ls_shift/su_max          0.012
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0082P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0777
_refine_ls_wR_factor_ref         0.0888
_reflns_number_gt                5896
_reflns_number_total             12053
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic801137p_si_001.cif
_cod_data_source_block           05074
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_cell_volume        5228.5(8)
_cod_original_sg_symbol_Hall     '-P 2ybc  '
_cod_original_sg_symbol_H-M      'P 1 21/c 1 '
_cod_original_formula_sum        'C54 H85 N2 Ni2 O0.50 P4'
_cod_database_code               4306289