Mono- and dinuclear Ni(i) products formed upon bromide abstraction from the Ni(i) ring-expanded NHC complex [Ni(6-Mes)(PPh<sub>3</sub>)Br].
Blackaby, William J. M.; Sabater, Sara; Poulten, Rebecca C.; Page, Michael J.; Folli, Andrea; Krewald, Vera; Mahon, Mary F.; Murphy, Damien M.; Richards, Emma; Whittlesey, Michael K.; Dalton transactions (Cambridge, England : 2003) 47 (2018) 769–782; doi:10.1039/c7dt04187j

data_7044959
_publ_section_title
;
 Mono- and dinuclear Ni(i) products formed upon bromide abstraction from
 the Ni(i) ring-expanded NHC complex [Ni(6-Mes)(PPh<sub>3</sub>)Br].
;
_journal_issue                   3
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              769
_journal_page_last               782
_journal_paper_doi               10.1039/c7dt04187j
_journal_volume                  47
_journal_year                    2018
_chemical_formula_moiety         'C44 H51 N2 Ni O P, F6 P'
_chemical_formula_sum            'C44 H51 F6 N2 Ni O P2'
_chemical_formula_weight         858.52
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2017-10-03
_audit_creation_method
;
Olex2 1.2
(compiled 2017.08.10 svn.r3458 for OlexSys, GUI svn.r5381)
;
_audit_update_record
;
2017-10-07 deposited with the CCDC.
2017-12-04 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 104.368(1)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   11.4270(2)
_cell_length_b                   14.7000(3)
_cell_length_c                   12.8660(3)
_cell_measurement_reflns_used    27274
_cell_measurement_temperature    150.00(10)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      2.910
_cell_volume                     2093.59(8)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Bruker AXS BV, 1997-2004)'
_computing_data_reduction
'Denzo & Scalepack (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      150.00(10)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  '95mm CCD camera on \k-goniostat'
_diffrn_measurement_method       CCD
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0342
_diffrn_reflns_av_unetI/netI     0.0335
_diffrn_reflns_Laue_measured_fraction_full 0.991
_diffrn_reflns_Laue_measured_fraction_max 0.986
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            31031
_diffrn_reflns_point_group_measured_fraction_full 0.992
_diffrn_reflns_point_group_measured_fraction_max 0.987
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.593
_diffrn_reflns_theta_min         4.334
_exptl_absorpt_coefficient_mu    0.603
_exptl_absorpt_correction_T_max  0.836
_exptl_absorpt_correction_T_min  0.804
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
multi-scan from symmetry-related measurements
 Sortav (Blessing 1995)
;
_exptl_crystal_colour            pale-yellow
_exptl_crystal_density_diffrn    1.362
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             898
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.391
_refine_diff_density_min         -0.271
_refine_diff_density_rms         0.046
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.102(11)
_refine_ls_extinction_coef       0.0098(17)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.013
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     513
_refine_ls_number_reflns         9369
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.013
_refine_ls_R_factor_all          0.0388
_refine_ls_R_factor_gt           0.0324
_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^)+(0.0451P)^2^+0.5398P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0779
_refine_ls_wR_factor_ref         0.0815
_reflns_Friedel_coverage         0.927
_reflns_Friedel_fraction_full    0.994
_reflns_Friedel_fraction_max     0.988
_reflns_number_gt                8514
_reflns_number_total             9369
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7dt04187j2.cif
_cod_data_source_block           h13mkw10
_cod_depositor_comments
'Adding full bibliography for 7044955--7044965.cif.'
_cod_database_code               7044959
_shelxl_version_number           2014-3
_shelx_estimated_absorpt_t_max   0.889
_shelx_estimated_absorpt_t_min   0.795
_olex2_refinement_description
;
1. Twinned data refinement
 Scales: 0.898(11)
 0.102(11)
2. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
3.a Secondary CH2 refined with riding coordinates:
 C3(H3A,H3B), C4(H4A,H4B), C2(H2A,H2B), C44(H44A,H44B), C41(H41A,H41B),
 C43(H43A,H43B), C42(H42A,H42B)
3.b Aromatic/amide H refined with riding coordinates:
 C30(H30), C33(H33), C28(H28), C40(H40), C34(H34), C24(H24), C39(H39), C9(H9),
 C36(H36), C37(H37), C7(H7), C25(H25), C31(H31), C16(H16), C38(H38), C18(H18),
 C27(H27), C32(H32), C26(H26)
3.c Idealised Me refined as rotating group:
 C20(H20A,H20B,H20C), C13(H13A,H13B,H13C), C22(H22A,H22B,H22C), C12(H12A,H12B,
 H12C), C11(H11A,H11B,H11C), C21(H21A,H21B,H21C)
;
_olex2_submission_special_instructions 'No special instructions were received'