IPr*(2-Np)—An Exceedingly Bulky N-Heterocyclic Carbene
Dierick, Steve; Dewez, Damien F.; Markó, István E.; Organometallics 33 (2014) 677–; doi:10.1021/om4008955

data_4082469
_publ_section_title
;
 IPr*(2-Np)---An Exceedingly Bulky N-Heterocyclic Carbene
;
_journal_issue                   3
_journal_name_full               Organometallics
_journal_page_first              677
_journal_paper_doi               10.1021/om4008955
_journal_volume                  33
_journal_year                    2014
_chemical_formula_moiety         'C101 H73 N2, C6 H6, Cl'
_chemical_formula_sum            'C107 H79 Cl N2'
_chemical_formula_weight         1428.17
_chemical_name_systematic
;
 ?
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                90
_cell_angle_beta                 105.718(5)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   39.809(2)
_cell_length_b                   14.0313(7)
_cell_length_c                   37.0198(16)
_cell_measurement_reflns_used    5977
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      20.1514
_cell_measurement_theta_min      2.8055
_cell_volume                     19905.0(17)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.19 (release 27-10-2011 CrysAlis171 .NET)
(compiled Oct 27 2011,15:02:11)
;
_computing_data_collection       MAR
_computing_data_reduction
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CrysAlisPro, Agilent Technologies,
Version 1.171.35.19 (release 27-10-2011 CrysAlis171 .NET)
(compiled Oct 27 2011,15:02:11)
;
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'MAR345 image plate'
_diffrn_measurement_method       '155 images, \D\F 1.0\% '
_diffrn_radiation_monochromator  'Xenocs Fox3D mirror'
_diffrn_radiation_source         'Rigaku UltraX 18 rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0573
_diffrn_reflns_av_unetI/netI     0.0505
_diffrn_reflns_Laue_measured_fraction_full 0.989
_diffrn_reflns_Laue_measured_fraction_max 0.989
_diffrn_reflns_limit_h_max       38
_diffrn_reflns_limit_h_min       -38
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       35
_diffrn_reflns_limit_l_min       -35
_diffrn_reflns_number            28445
_diffrn_reflns_point_group_measured_fraction_full 0.989
_diffrn_reflns_point_group_measured_fraction_max 0.989
_diffrn_reflns_theta_full        20.194
_diffrn_reflns_theta_max         20.194
_diffrn_reflns_theta_min         2.811
_exptl_absorpt_coefficient_mu    0.080
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.94427
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.19 (release 27-10-2011 CrysAlis171 .NET)
(compiled Oct 27 2011,15:02:11)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    0.953
_exptl_crystal_description       block
_exptl_crystal_F_000             6016
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.692
_refine_diff_density_min         -0.299
_refine_diff_density_rms         0.069
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.077
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     993
_refine_ls_number_reflns         9469
_refine_ls_number_restraints     291
_refine_ls_restrained_S_all      1.074
_refine_ls_R_factor_all          0.1220
_refine_ls_R_factor_gt           0.0908
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
 w={1-exp[-10.0000(sin\q/\l)^2^)]}/[\s^2^(Fo^2^)+(0.0800P)^2^+30.0000P]
 where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2217
_refine_ls_wR_factor_ref         0.2427
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6647
_reflns_number_total             9469
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            om4008955_si_002.cif
_cod_data_source_block           dd138h_sq_s
_cod_original_cell_volume        19904.7(18)
_cod_database_code               4082469
_shelxl_version_number           2013-2
_shelx_res_checksum              87096
_shelx_hkl_checksum              42381
_shelx_fab_checksum              29472