Metal-induced tautomerization of oxazole and thiazole molecules to heterocyclic carbenes.
Ruiz, Javier; Perandones, Bernabé F; Chemical communications (Cambridge, England) 34 (2009) 2741–2743; doi:10.1039/b900955h

data_7104418
_publ_section_title
;
 Metal-induced tautomerization of oxazole and thiazole molecules to
 heterocyclic carbenes.
;
_journal_issue                   19
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              2741
_journal_page_last               2743
_journal_paper_doi               10.1039/b900955h
_journal_volume                  34
_journal_year                    2009
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C21 H18 Au N P S, Cl O4'
_chemical_formula_sum            'C21 H18 Au Cl N O4 P S'
_chemical_formula_weight         643.81
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.3
_audit_creation_date             2008-04-28T11:41:58-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 101.338(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.7030(3)
_cell_length_b                   16.6091(6)
_cell_length_c                   13.9180(4)
_cell_measurement_reflns_used    1881
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      22.53
_cell_measurement_theta_min      2.3
_cell_measurement_wavelength     0.71073
_cell_volume                     2199.22(12)
_computing_cell_refinement       'APPEX2 (BRUKER AXS, 2005)'
_computing_data_collection       'APPEX2 (BRUKER AXS, 2005)'
_computing_data_reduction        'APPEX2 (BRUKER AXS, 2005)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'DIRDIF-99 (Beurskens, 1999)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'BRUKER APPEX-II CCD'
_diffrn_measurement_method       'omega and phi scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  0.0747
_diffrn_reflns_av_unetI/netI     0.0414
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            57620
_diffrn_reflns_theta_full        27.88
_diffrn_reflns_theta_max         27.88
_diffrn_reflns_theta_min         1.93
_exptl_absorpt_coefficient_mu    7.007
_exptl_absorpt_correction_T_max  0.7533
_exptl_absorpt_correction_T_min  0.4510
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'BRUKER SADABS'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.944
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Needle
_exptl_crystal_F_000             1240
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.04
_refine_diff_density_max         1.452
_refine_diff_density_min         -1.185
_refine_diff_density_rms         0.15
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.015
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     302
_refine_ls_number_reflns         5245
_refine_ls_number_restraints     23
_refine_ls_restrained_S_all      1.02
_refine_ls_R_factor_all          0.0516
_refine_ls_R_factor_gt           0.0314
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0206P)^2^+7.1515P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0591
_refine_ls_wR_factor_ref         0.0658
_reflns_number_gt                4051
_reflns_number_total             5245
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            B900955H.txt
_cod_data_source_block           8b
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7104418