Structural characterisation of cationic methylallyl, methylindenyl and pentamethylcyclopentadienyl nickel complexes containing the bulky phosphine 1,2-bis(diisopropylphosphino)ethane †
Tenorio, Manuel Jiménez; Puerta, M. Carmen; Salcedo, Isabel; Valerga, Pedro; Journal of the Chemical Society, Dalton Transactions  (2001) 653–; doi:10.1039/b008441g

data_7702487
_publ_section_title
;
 Structural characterisation of cationic methylallyl, methylindenyl and
 pentamethylcyclopentadienyl nickel complexes containing the bulky
 phosphine 1,2-bis(diisopropylphosphino)ethane&#x200A;&#x2020;
;
_journal_issue                   5
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              653
_journal_paper_doi               10.1039/b008441g
_journal_year                    2001
_chemical_formula_sum            'C48 H67 B Ni P2'
_chemical_formula_weight         775.48
_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
_symmetry_space_group_name_H-M   'P 1 21/n 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                 100.72(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.207(4)
_cell_length_b                   21.302(5)
_cell_length_c                   14.514(4)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      14.8
_cell_measurement_theta_min      12.7
_cell_volume                     4316(2)
_computing_cell_refinement       'MSC/AFC Diffractometer Control'
_computing_data_collection       'MSC/AFC Diffractometer Control'
_computing_data_reduction        texsan
_computing_molecular_graphics    'ORTEP32 (L.J.Farrugia, 1999)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    DIRDIF
_diffrn_ambient_temperature      290(2)
_diffrn_measured_fraction_theta_full 0.820
_diffrn_measured_fraction_theta_max 0.820
_diffrn_measurement_device_type  AFC6S
_diffrn_measurement_method       omega/2-theta
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0317
_diffrn_reflns_av_sigmaI/netI    0.1067
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            6513
_diffrn_reflns_theta_full        25.05
_diffrn_reflns_theta_max         25.05
_diffrn_reflns_theta_min         2.86
_diffrn_standards_decay_%        -5.63
_diffrn_standards_interval_count 100
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.555
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.920
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   psi-scan
_exptl_crystal_colour            dark
_exptl_crystal_density_diffrn    1.193
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             1672
_exptl_crystal_size_max          0.300
_exptl_crystal_size_mid          0.300
_exptl_crystal_size_min          0.220
_refine_diff_density_max         0.824
_refine_diff_density_min         -0.790
_refine_diff_density_rms         0.142
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.060
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     469
_refine_ls_number_reflns         6284
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.060
_refine_ls_R_factor_all          0.1382
_refine_ls_R_factor_gt           0.0811
_refine_ls_shift/su_max          0.055
_refine_ls_shift/su_mean         0.007
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1930P)^2^+3.5435P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2517
_refine_ls_wR_factor_ref         0.2954
_reflns_number_gt                3700
_reflns_number_total             6284
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b008441g.txt
_cod_data_source_block           '[Ni(C5Me5)dippe]BPh4'
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               7702487