Reactions of Doubly SiMe2-Bridged Bis(cyclopentadienyl) Complexes of Molybdenum and Iron Carbonyls: Competitive Ring-to-Metal Migrations of Hydrogen and SiMe2
Zhu, Bolin; Chen, Yunfei; Shi, Wei; Li, Yuan; Hao, Xiaoting; Organometallics 31 (2012) 4046–; doi:10.1021/om300305g

data_4078315
_publ_section_title
;
 Reactions of Doubly SiMe2-Bridged Bis(cyclopentadienyl) Complexes of
 Molybdenum and Iron Carbonyls: Competitive Ring-to-Metal Migrations of
 Hydrogen and SiMe2
;
_journal_issue                   10
_journal_name_full               Organometallics
_journal_page_first              4046
_journal_paper_doi               10.1021/om300305g
_journal_volume                  31
_journal_year                    2012
_chemical_formula_sum            'C10 H10 Mo O3 Si'
_chemical_formula_weight         302.21
_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                 109.8730(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.8847(5)
_cell_length_b                   14.1797(8)
_cell_length_c                   8.5840(5)
_cell_measurement_reflns_used    4510
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.29
_cell_measurement_theta_min      2.62
_cell_volume                     1131.50(11)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0134
_diffrn_reflns_av_sigmaI/netI    0.0146
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            5702
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         2.19
_exptl_absorpt_coefficient_mu    1.247
_exptl_absorpt_correction_T_max  0.8159
_exptl_absorpt_correction_T_min  0.7885
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            COLOURLESS
_exptl_crystal_density_diffrn    1.774
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             600
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.279
_refine_diff_density_min         -0.676
_refine_diff_density_rms         0.099
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.073
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     138
_refine_ls_number_reflns         1992
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.073
_refine_ls_R_factor_all          0.0216
_refine_ls_R_factor_gt           0.0203
_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^)+(0.0366P)^2^+0.2820P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0550
_refine_ls_wR_factor_ref         0.0560
_reflns_number_gt                1889
_reflns_number_total             1992
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om300305g_si_001.cif
_cod_data_source_block           111223a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'MULTI-SCAN'
changed to 'multi-scan' 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_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'NONE' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4078315