Intermolecular β-Hydrogen Abstraction in Ytterbium, Calcium, and Potassium Tris(dimethylsilyl)methyl Compounds
Yan, KaKing; Schoendorff, George; Upton, Brianna M.; Ellern, Arkady; Windus, Theresa L.; Sadow, Aaron D.; Organometallics 32 (2013) 1300–; doi:10.1021/om3010299

data_4080245
_publ_section_title
;
 Intermolecular \b-Hydrogen Abstraction in Ytterbium, Calcium, and
 Potassium Tris(dimethylsilyl)methyl Compounds
;
_journal_issue                   5
_journal_name_full               Organometallics
_journal_page_first              1300
_journal_paper_doi               10.1021/om3010299
_journal_volume                  32
_journal_year                    2013
_chemical_formula_sum            'C13 H35 K N2 Si3'
_chemical_formula_weight         342.80
_chemical_name_systematic
;

 ?

;
_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   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                98.081(4)
_cell_angle_beta                 105.754(4)
_cell_angle_gamma                96.538(4)
_cell_formula_units_Z            2
_cell_length_a                   8.935(2)
_cell_length_b                   10.743(2)
_cell_length_c                   12.522(3)
_cell_measurement_reflns_used    955
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      24.10
_cell_measurement_theta_min      2.35
_cell_volume                     1130.7(4)
_computing_cell_refinement       'SAINT V7.66A (Bruker AXS, 2009)'
_computing_data_collection       'APEX2 Suite (Bruker AXS, 2009)'
_computing_data_reduction        'SAINT V7.66A (Bruker AXS, 2009)'
_computing_molecular_graphics    'XSHELL (Bruker AXS, 2007)'
_computing_publication_material  'APEX2 Suite (Bruker AXS, 2009)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_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  0.0433
_diffrn_reflns_av_sigmaI/netI    0.0715
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            7293
_diffrn_reflns_theta_full        23.25
_diffrn_reflns_theta_max         23.25
_diffrn_reflns_theta_min         1.94
_exptl_absorpt_coefficient_mu    0.388
_exptl_absorpt_correction_T_max  1
_exptl_absorpt_correction_T_min  0.73
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'BRUKER SADABS'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.007
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             376
_exptl_crystal_size_max          0.47
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.516
_refine_diff_density_min         -0.369
_refine_diff_density_rms         0.073
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     191
_refine_ls_number_reflns         3214
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.0982
_refine_ls_R_factor_gt           0.0575
_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^)+(0.0595P)^2^+1.8429P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1269
_refine_ls_wR_factor_ref         0.1492
_reflns_number_gt                2151
_reflns_number_total             3214
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om3010299_si_002.cif
_cod_data_source_block           KC(SiHMe2)3TMEDA
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        1130.6(4)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4080245