Preparing alpha,beta-unsaturated Fischer-type carbene complexes via an unforeseen route.
Stander, Elzet; Cronje, Stephanie; Raubenheimer, Helgard G.; Dalton transactions (Cambridge, England : 2003)  (2007) 424–429; doi:10.1039/b615079a

data_7005031
_publ_section_title
;
 Preparing alpha,beta-unsaturated Fischer-type carbene complexes via an
 unforeseen route.
;
_journal_issue                   4
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              424
_journal_page_last               429
_journal_paper_doi               10.1039/b615079a
_journal_year                    2007
_chemical_formula_moiety         'C11 H11 N O6 W'
_chemical_formula_sum            'C11 H11 N O6 W'
_chemical_formula_weight         437.06
_chemical_name_common            'Complex 2b'
_chemical_name_systematic
;
?
;
_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                 93.036(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.5753(5)
_cell_length_b                   6.8567(3)
_cell_length_c                   18.7407(9)
_cell_measurement_reflns_used    5358
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      28.2026
_cell_measurement_theta_min      2.8309
_cell_volume                     1357.01(11)
_computing_cell_refinement       'SAINT (Bruker, 2002)'
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction        SAINT
_computing_molecular_graphics
;
X-Seed (Barbour, 2001; Atwood and Barbour, 2003)
;
_computing_publication_material
;
X-Seed
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.926
_diffrn_measured_fraction_theta_max 0.926
_diffrn_measurement_device_type  'Bruker APEX CCD area-detector'
_diffrn_measurement_method       \w
_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  0.0192
_diffrn_reflns_av_sigmaI/netI    0.0246
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            8020
_diffrn_reflns_theta_full        28.26
_diffrn_reflns_theta_max         28.26
_diffrn_reflns_theta_min         1.93
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    8.533
_exptl_absorpt_correction_T_max  0.4245
_exptl_absorpt_correction_T_min  0.3762
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS, Blessing, Acta Cryst. A51 (1995) 33-38'
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    2.139
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             824
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.699
_refine_diff_density_min         -0.845
_refine_diff_density_rms         0.118
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.012
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     175
_refine_ls_number_reflns         3119
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.012
_refine_ls_R_factor_all          0.0196
_refine_ls_R_factor_gt           0.0176
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0166P)^2^+1.6326P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0394
_refine_ls_wR_factor_ref         0.0402
_reflns_number_gt                2917
_reflns_number_total             3119
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b615079a.txt
_cod_data_source_block           Complex_2b
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7005031