Expanded ring and functionalised expanded ring N-heterocyclic carbenes as ligands in catalysis
Binobaid, Abeer; Iglesias, Manuel; Beetstra, Dirk J.; Kariuki, Benson; Dervisi, Athanasia; Fallis, Ian A.; Cavell, Kingsley J.; Dalton Transactions  (2009) 7099–; doi:10.1039/b909834h

data_7001996
_publ_section_title
;
 Expanded ring and functionalised expanded ring N-heterocyclic carbenes
 as ligands in catalysis
;
_journal_issue                   35
_journal_name_full               'Dalton Transactions'
_journal_page_first              7099
_journal_paper_doi               10.1039/b909834h
_journal_year                    2009
_chemical_formula_moiety         'C20 H25 N2 S, B F4'
_chemical_formula_sum            'C20 H25 B F4 N2 S'
_chemical_formula_weight         412.29
_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                 102.2990(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.0040(2)
_cell_length_b                   16.1800(4)
_cell_length_c                   16.1990(5)
_cell_measurement_reflns_used    3473
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.49
_cell_measurement_theta_min      3.48
_cell_volume                     2049.70(10)
_computing_cell_refinement       DENZO/SCALEPACK
_computing_data_collection       'cOLLECT,Nonius BV, 1997-2001'
_computing_data_reduction        DENZO/SCALEPACK
_computing_structure_refinement  SHELXL-97
_computing_structure_solution    SHELXs-97
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       'CCD 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  0.1194
_diffrn_reflns_av_sigmaI/netI    0.0752
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            20675
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         3.48
_exptl_absorpt_coefficient_mu    0.201
_exptl_absorpt_correction_T_max  .9025
_exptl_absorpt_correction_T_min  .8123
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   Denzo/Scalepack
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.336
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             864
_exptl_crystal_size_max          .50
_exptl_crystal_size_mid          .38
_exptl_crystal_size_min          .08
_refine_diff_density_max         0.257
_refine_diff_density_min         -0.432
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     257
_refine_ls_number_reflns         4659
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0846
_refine_ls_R_factor_gt           0.0563
_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^)+(0.0480P)^2^+1.0772P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1273
_refine_ls_wR_factor_ref         0.1412
_reflns_number_gt                3473
_reflns_number_total             4659
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b909834h.txt
_cod_data_source_block           kjc0819
_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_sg_symbol_H-M      P21/c
_cod_database_code               7001996