Expanded ring N-heterocyclic carbene adducts of group 15 element trichlorides: synthesis and reduction studies.
Sidiropoulos, Anastas; Osborne, Brooke; Simonov, Alexandr N.; Dange, Deepak; Bond, Alan M.; Stasch, Andreas; Jones, Cameron; Dalton transactions (Cambridge, England : 2003) 43 (2014) 14858–14864; doi:10.1039/c4dt02074j

data_7032124
_publ_section_title
;
 Expanded ring N-heterocyclic carbene adducts of group 15 element
 trichlorides: synthesis and reduction studies.
;
_journal_issue                   39
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              14858
_journal_page_last               14864
_journal_paper_doi               10.1039/c4dt02074j
_journal_volume                  43
_journal_year                    2014
_chemical_formula_sum            'C50 H64 N4'
_chemical_formula_weight         721.05
_space_group_IT_number           20
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'C 2c 2'
_symmetry_space_group_name_H-M   'C 2 2 21'
_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            4
_cell_length_a                   11.656(2)
_cell_length_b                   14.612(3)
_cell_length_c                   23.686(5)
_cell_measurement_temperature    100(2)
_cell_volume                     4034.1(14)
_computing_cell_refinement       'XDS (Kabsch, 1993)'
_computing_data_collection       'Blu-Ice (McPhillips, 2002)'
_computing_data_reduction        'XDS (Kabsch, 1993)'
_computing_molecular_graphics    X-Seed
_computing_publication_material  CifTAB
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'ADSC Quantum 210r'
_diffrn_radiation_source         'Australian Synchrotron'
_diffrn_radiation_type           Synchrotron
_diffrn_radiation_wavelength     0.71090
_diffrn_reflns_av_R_equivalents  0.0485
_diffrn_reflns_av_sigmaI/netI    0.0350
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            15178
_diffrn_reflns_theta_full        25.99
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         2.92
_exptl_absorpt_coefficient_mu    0.069
_exptl_absorpt_correction_T_max  0.997
_exptl_absorpt_correction_T_min  0.991
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   XDS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.187
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1568
_exptl_crystal_size_max          0.07
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.204
_refine_diff_density_min         -0.161
_refine_diff_density_rms         0.039
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0(2)
_refine_ls_extinction_coef       0.0313(15)
_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   1.057
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     251
_refine_ls_number_reflns         3948
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.0375
_refine_ls_R_factor_gt           0.0350
_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^)+(0.0392P)^2^+1.9321P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0851
_refine_ls_wR_factor_ref         0.0866
_reflns_number_gt                3743
_reflns_number_total             3948
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4dt02074j2.cif
_cod_data_source_block           cj1074
_cod_depositor_comments
'Adding full bibliography for 7032119--7032124.cif.'
_cod_original_cell_volume        4033.9(14)
_cod_original_sg_symbol_H-M      C222(1)
_cod_database_code               7032124