Metal-assisted conversion of an N-ylide mesomeric betaine into its carbenic tautomer: generation of N-(fluoren-9-yl)imidazol-2-ylidene complexes.
Benhamou, Laure; Bastin, Stéphanie; Lugan, Noël; Lavigne, Guy; César, Vincent; Dalton transactions (Cambridge, England : 2003) 43 (2014) 4474–4482; doi:10.1039/c3dt53089b

data_7028999
_publ_section_title
;
 Metal-assisted conversion of an N-ylide mesomeric betaine into its
 carbenic tautomer: generation of N-(fluoren-9-yl)imidazol-2-ylidene
 complexes.
;
_journal_issue                   11
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4474
_journal_page_last               4482
_journal_paper_doi               10.1039/c3dt53089b
_journal_volume                  43
_journal_year                    2014
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C25 H22 Au Cl N2'
_chemical_formula_sum            'C25 H22 Au Cl N2'
_chemical_formula_weight         582.86
_chemical_name_systematic
;
 ?
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_Int_Tables_number      15
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2013-10-23T08:54:58-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 102.5720(10)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   27.8036(11)
_cell_length_b                   8.4332(3)
_cell_length_c                   18.9780(7)
_cell_measurement_reflns_used    9999
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      36.29
_cell_measurement_theta_min      1.80
_cell_measurement_wavelength     0.71073
_cell_volume                     4343.1(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1
_diffrn_measured_fraction_theta_max 1
_diffrn_measurement_device_type  'Bruker APEX II'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'Incoatec I\mS Microsource '
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0716
_diffrn_reflns_av_unetI/netI     0.0281
_diffrn_reflns_limit_h_max       34
_diffrn_reflns_limit_h_min       -34
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            44515
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         2.2
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    6.911
_exptl_absorpt_correction_T_max  0.7462
_exptl_absorpt_correction_T_min  0.5561
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
'SADABS, Sheldrick, Bruker, 2000'
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.783
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2256
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.08
_refine_diff_density_max         1.89
_refine_diff_density_min         -1.649
_refine_diff_density_rms         0.174
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.134
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     265
_refine_ls_number_reflns         4447
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.134
_refine_ls_R_factor_all          0.0333
_refine_ls_R_factor_gt           0.0297
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0345P)^2^+19.4974P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0667
_refine_ls_wR_factor_ref         0.0679
_reflns_number_gt                4117
_reflns_number_total             4447
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c3dt53089b.txt
_cod_data_source_block           complex_4
_cod_depositor_comments
;
The following automatic conversions were performed:

'_space_group_crystal_system' value 'Monoclinic' changed to
'monoclinic' according to
/usr/data/users/saulius/automatic-downloads/current/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_database_code               7028999