Experimental and quantum chemical studies of anionic analogues of N-heterocyclic carbenes.
Niu, Haoyu; Mangan, Robert J.; Protchenko, Andrey V.; Phillips, Nicholas; Unkrig, Wiebke; Friedmann, Christian; Kolychev, Eugene L.; Tirfoin, Rémi; Hicks, Jamie; Aldridge, Simon; Dalton transactions (Cambridge, England : 2003) 47 (2018) 7445–7455; doi:10.1039/c8dt01661e

data_7046318
_publ_section_title
;
 Experimental and quantum chemical studies of anionic analogues of
 N-heterocyclic carbenes.
;
_journal_issue                   22
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7445
_journal_page_last               7455
_journal_paper_doi               10.1039/c8dt01661e
_journal_volume                  47
_journal_year                    2018
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C54 H56 B1 F15 N2'
_chemical_formula_sum            'C54 H56 B F15 N2'
_chemical_formula_weight         1028.83
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_audit_creation_date             2014-11-09
_audit_creation_method           CRYSTALS_ver_14.43
_audit_update_record
;
2018-04-19 deposited with the CCDC.
2018-05-11 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.7458(2)
_cell_length_b                   15.9989(2)
_cell_length_c                   24.8594(5)
_cell_measurement_reflns_used    8124
_cell_measurement_temperature    150
_cell_measurement_theta_max      75
_cell_measurement_theta_min      4
_cell_volume                     5069.30(14)
_computing_cell_refinement       'CrysAlis, (Oxford Diffraction, 2002)'
_computing_data_collection       'SuperNova, (Oxford Diffraction, 2010)'
_computing_data_reduction        'CrysAlis, (Oxford Diffraction, 2002)'
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_refinement  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      150
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device       Area
_diffrn_measurement_device_type  'Oxford Diffraction SuperNova'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54180
_diffrn_reflns_av_R_equivalents  0.065
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            17800
_diffrn_reflns_theta_full        74.143
_diffrn_reflns_theta_max         76.436
_diffrn_reflns_theta_min         3.285
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.006
_exptl_absorpt_correction_T_max  0.95
_exptl_absorpt_correction_T_min  0.79
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrysAlis, (Oxford Diffraction, 2002)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.348
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       baguette
_exptl_crystal_F_000             2136
_exptl_crystal_size_max          0.150
_exptl_crystal_size_mid          0.080
_exptl_crystal_size_min          0.050
_refine_diff_density_max         0.35
_refine_diff_density_min         -0.29
_refine_ls_extinction_coef       50(20)
_refine_ls_extinction_method     'Larson (1970), Equation 22'
_refine_ls_goodness_of_fit_ref   0.9895
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     650
_refine_ls_number_reflns         9447
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0560
_refine_ls_R_factor_gt           0.0521
_refine_ls_shift/su_max          0.0004212
_refine_ls_shift/su_mean         0.0000300
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
 Method= Modified Sheldrick 
 w=1/[\s^2^(F^2^) + ( 0.09P)^2^ + 0.20P] 
 ,where P=(max(Fo^2^,0) + 2Fc^2^)/3 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1392
_refine_ls_wR_factor_gt          0.1327
_refine_ls_wR_factor_ref         0.1392
_reflns_limit_h_max              15
_reflns_limit_h_min              -15
_reflns_limit_k_max              19
_reflns_limit_k_min              0
_reflns_limit_l_max              31
_reflns_limit_l_min              0
_reflns_number_gt                8683
_reflns_number_total             9484
_reflns_threshold_expression     I>2.0\s(I)
_oxford_diffrn_Wilson_B_factor   2.36
_oxford_diffrn_Wilson_scale      0.14
_oxford_refine_ls_r_factor_ref   0.0560
_oxford_refine_ls_scale          2.70(3)
_oxford_reflns_number_all        9447
_oxford_reflns_threshold_expression_ref I>-3.0\s(I)
_oxford_structure_analysis_title '322WURT14 in P 21 21 21'
_iucr_refine_instructions_details_constraints
;
BLOCK SCALE X'S, U'S 
CONT EXTPARAM 
RIDE C   (  35,X'S) H   ( 351,X'S) H   ( 352,X'S) 
RIDE C   (  36,X'S) H   ( 361,X'S) 
RIDE C   (  40,X'S) H   ( 401,X'S) 
RIDE C   (  42,X'S) H   ( 421,X'S) 
RIDE C   (  44,X'S) H   ( 441,X'S) 
RIDE C   (  45,X'S) H   ( 451,X'S) H   ( 452,X'S) H   ( 453,X'S) 
RIDE C   (  46,X'S) H   ( 461,X'S) H   ( 462,X'S) H   ( 463,X'S) 
RIDE C   (  47,X'S) H   ( 471,X'S) 
RIDE C   (  48,X'S) H   ( 481,X'S) H   ( 482,X'S) H   ( 483,X'S) 
RIDE C   (  49,X'S) H   ( 491,X'S) H   ( 492,X'S) H   ( 493,X'S) 
RIDE C   (  50,X'S) H   ( 501,X'S) 
RIDE C   (  51,X'S) H   ( 511,X'S) H   ( 512,X'S) H   ( 513,X'S) 
RIDE C   (  52,X'S) H   ( 521,X'S) H   ( 522,X'S) H   ( 523,X'S) 
RIDE C   (  53,X'S) H   ( 531,X'S) 
RIDE C   (  57,X'S) H   ( 571,X'S) 
RIDE C   (  58,X'S) H   ( 581,X'S) H   ( 583,X'S) H   ( 582,X'S) 
RIDE C   (  59,X'S) H   ( 591,X'S) H   ( 593,X'S) H   ( 592,X'S) 
RIDE C   (  60,X'S) H   ( 601,X'S) 
RIDE C   (  62,X'S) H   ( 621,X'S) 
RIDE C   (  64,X'S) H   ( 641,X'S) 
RIDE C   (  65,X'S) H   ( 651,X'S) H   ( 652,X'S) H   ( 653,X'S) 
RIDE C   (  66,X'S) H   ( 661,X'S) H   ( 662,X'S) H   ( 663,X'S) 
RIDE C   (  67,X'S) H   ( 671,X'S) 
RIDE C   (  68,X'S) H   ( 681,X'S) H   ( 682,X'S) H   ( 683,X'S) 
RIDE C   (  69,X'S) H   ( 691,X'S) H   ( 692,X'S) H   ( 693,X'S) 
RIDE C   (  70,X'S) H   ( 702,X'S) H   ( 701,X'S) 
RIDE C   (  71,X'S) H   ( 711,X'S) H   ( 712,X'S) 
RIDE C   (  72,X'S) H   ( 721,X'S) H   ( 722,X'S) 
END                                                                             
;
_iucr_refine_instructions_details_restraints
;
NO 
REM   HREST   START (DO NOT REMOVE THIS LINE) 
REM   HREST   END (DO NOT REMOVE THIS LINE) 
END                                                                             
;
_cod_data_source_file            c8dt01661e2.cif
_cod_data_source_block           322WURT14
_cod_depositor_comments
'Adding full bibliography for 7046314--7046326.cif.'
_cod_original_sg_symbol_Hall     'P 2ac 2ab '
_cod_original_sg_symbol_H-M      'P 21 21 21 '
_cod_original_formula_sum        'C54 H56 B1 F15 N2'
_cod_database_code               7046318