Reactions of Transition-Metal Metallocenes with Stable Carbenes
Colin D. Abernethy; Jason A. C. Clyburne; Alan H. Cowley; Richard A. Jones; Journal of the American Chemical Society 121 (1999) 2329–2330; doi:10.1021/ja983772s

data_4116320
_publ_section_title
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 Reactions of Transition-Metal Metallocenes with Stable Carbenes
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_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              2329
_journal_page_last               2330
_journal_paper_doi               10.1021/ja983772s
_journal_volume                  121
_journal_year                    1999
_chemical_formula_sum            'C52 H76 Cr2 N8 O'
_chemical_formula_weight         933.21
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 107.064(12)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   25.839(5)
_cell_length_b                   9.501(2)
_cell_length_c                   21.716(5)
_cell_measurement_reflns_used    45
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      12.80
_cell_measurement_theta_min      5.88
_cell_volume                     5096.5(19)
_computing_cell_refinement       'Siemens XSCANS'
_computing_data_collection       'Siemens XSCANS'
_computing_data_reduction        'Siemens SHELXTL'
_computing_molecular_graphics    'Siemens SHELXTL'
_computing_publication_material  'Siemens SHELXTL'
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measurement_device       'Siemens P4'
_diffrn_measurement_method       '\w scans'
_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  0.0227
_diffrn_reflns_av_sigmaI/netI    0.0495
_diffrn_reflns_limit_h_max       32
_diffrn_reflns_limit_h_min       -33
_diffrn_reflns_limit_k_max       1
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -1
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_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.65
_diffrn_standards_decay_%        99.97
_diffrn_standards_interval_count 97
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.470
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.216
_exptl_crystal_description       block
_exptl_crystal_F_000             2000
_exptl_crystal_size_max          0.47
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.31
_refine_diff_density_max         0.627
_refine_diff_density_min         -0.736
_refine_diff_density_rms         0.063
_refine_ls_extinction_method     none
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_refine_ls_goodness_of_fit_obs   1.150
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_refine_ls_number_reflns         11638
_refine_ls_number_restraints     0
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_refine_ls_restrained_S_obs      1.150
_refine_ls_R_factor_all          0.0789
_refine_ls_R_factor_obs          0.0469
_refine_ls_shift/esd_max         7.552
_refine_ls_shift/esd_mean        0.029
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0695P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1399
_refine_ls_wR_factor_obs         0.1177
_reflns_number_observed          8213
_reflns_number_total             11642
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            ja983772s_3.cif
_cod_data_source_block           7(THF)0.5
_cod_depositor_comments
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The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0695P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0695P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        5096.7(18)
_cod_database_code               4116320