The rhodium carbene route to oxazoles: a remarkable catalyst effect.
Shi, Baolu; Blake, Alexander J; Campbell, Ian B; Judkins, Brian D; Moody, Christopher J; Chemical communications (Cambridge, England) 34 (2009) 3291–3293; doi:10.1039/b903878g

data_7104505
_publ_section_title
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 The rhodium carbene route to oxazoles: a remarkable catalyst effect.
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_journal_issue                   22
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              3291
_journal_page_last               3293
_journal_paper_doi               10.1039/b903878g
_journal_volume                  34
_journal_year                    2009
_chemical_formula_moiety         'C13 H13 N O4'
_chemical_formula_sum            'C13 H13 N O4'
_chemical_formula_weight         247.24
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens
'sp2-bound Me H atoms from delta-F; others placed geometrically'
_atom_sites_solution_primary     direct
_audit_creation_method           'enCIFer editing of SHELXL97 CIF output'
_cell_angle_alpha                78.908(2)
_cell_angle_beta                 85.615(2)
_cell_angle_gamma                72.613(2)
_cell_formula_units_Z            2
_cell_length_a                   6.8926(8)
_cell_length_b                   7.4333(9)
_cell_length_c                   12.285(2)
_cell_measurement_reflns_used    1703
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.2
_cell_measurement_theta_min      2.9
_cell_volume                     589.3(2)
_computing_cell_refinement       'Bruker SAINT version 6.36A (Bruker, 2002)'
_computing_data_collection       'Bruker SMART version 5.625 (Bruker, 2001)'
_computing_data_reduction        'Bruker SAINT; SHELXTL (Sheldrick, 2008)'
_computing_molecular_graphics    ' ?'
_computing_publication_material  'enCIFer(Allen et al.,2004);PLATON(Spek,2003)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device_type  'Bruker SMART APEX CCD area detector'
_diffrn_measurement_method       omega
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.106
_diffrn_reflns_av_sigmaI/netI    0.084
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            5217
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.92
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.104
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.393
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       lath
_exptl_crystal_F_000             260
_exptl_crystal_size_max          0.85
_exptl_crystal_size_mid          0.31
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.35
_refine_diff_density_min         -0.24
_refine_diff_density_rms         0.06
_refine_ls_extinction_coef       0.011(4)
_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   1.04
_refine_ls_hydrogen_treatment    'rigid rotor; riding model'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     165
_refine_ls_number_reflns         2643
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.04
_refine_ls_R_factor_all          0.0540
_refine_ls_R_factor_gt           0.0492
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.069P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.128
_refine_ls_wR_factor_ref         0.132
_reflns_number_gt                2270
_reflns_number_total             2643
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            b903878g.txt
_cod_data_source_block           ansomc
_cod_depositor_comments
;
The following automatic conversions were performed:
'_exptl_absorpt_correction_type' value 'None' changed to 'none' 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 
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_cod_database_code               7104505