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_7005030
_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 Cr N O6'
_chemical_formula_sum            'C11 H11 Cr N O6'
_chemical_formula_weight         305.21
_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                 93.130(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.4705(7)
_cell_length_b                   6.7453(5)
_cell_length_c                   18.4712(13)
_cell_measurement_reflns_used    3626
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.181
_cell_measurement_theta_min      2.8645
_cell_volume                     1302.61(16)
_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      100(2)
_diffrn_measured_fraction_theta_full 0.928
_diffrn_measured_fraction_theta_max 0.928
_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  0.0220
_diffrn_reflns_av_sigmaI/netI    0.0292
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            7796
_diffrn_reflns_theta_full        28.29
_diffrn_reflns_theta_max         28.29
_diffrn_reflns_theta_min         1.95
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.899
_exptl_absorpt_correction_T_max  0.9155
_exptl_absorpt_correction_T_min  0.8998
_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    1.556
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             624
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.410
_refine_diff_density_min         -0.229
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     175
_refine_ls_number_reflns         2999
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0366
_refine_ls_R_factor_gt           0.0330
_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^)+(0.0375P)^2^+0.9804P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0797
_refine_ls_wR_factor_ref         0.0817
_reflns_number_gt                2753
_reflns_number_total             2999
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b615079a.txt
_cod_data_source_block           Complex_2a
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7005030