A Stable Two-Coordinate Acyclic Silylene
Andrey V. Protchenko; Krishna Hassomal Birjkumar; Deepak Dange; Andrew D. Schwarz; Dragoslav Vidovic; Cameron Jones; Nikolas Kaltsoyannis; Philip Mountford; Simon Aldridge; Journal of the American Chemical Society 134 (2012) 6500–6503; doi:10.1021/ja301042u

data_4117833
_publ_contact_author
;
 Prof S. Aldridge
 Chemistry Research Laboratory
 Mansfield Road
 Oxford
 OX1 3TA
 UK
;
_publ_contact_author_email       Simon.Aldridge@chem.ox.ac.uk
_publ_contact_author_fax         '+44 1865 272690'
_publ_contact_author_phone       '+44 1865 285201'
_publ_section_title
;
 A Stable Two-Coordinate Acyclic Silylene
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              6500
_journal_page_last               6503
_journal_paper_doi               10.1021/ja301042u
_journal_volume                  134
_journal_year                    2012
_chemical_formula_sum            'C64.5 H78 B Ge N3 Si'
_chemical_formula_weight         1006.79
_chemical_name_systematic
;
Ge{B(NDippCH)2}{N(SiMe3)Dipp*}
;
_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                99.870(3)
_cell_angle_beta                 103.835(3)
_cell_angle_gamma                100.901(3)
_cell_formula_units_Z            2
_cell_length_a                   12.3688(5)
_cell_length_b                   12.5625(5)
_cell_length_c                   19.8714(7)
_cell_measurement_temperature    123(2)
_cell_volume                     2867.0(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Oxford Gemini Ultra'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0265
_diffrn_reflns_av_sigmaI/netI    0.0547
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            18776
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.17
_exptl_absorpt_coefficient_mu    0.596
_exptl_absorpt_correction_T_max  0.915
_exptl_absorpt_correction_T_min  0.887
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SCALE3 ABSPACK'
_exptl_crystal_colour            red-purple
_exptl_crystal_density_diffrn    1.166
_exptl_crystal_description       block
_exptl_crystal_F_000             1074
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.620
_refine_diff_density_min         -0.349
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     702
_refine_ls_number_reflns         11174
_refine_ls_number_restraints     22
_refine_ls_restrained_S_all      1.022
_refine_ls_R_factor_all          0.0574
_refine_ls_R_factor_gt           0.0415
_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^)+(0.0383P)^2^+1.0153P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0887
_refine_ls_wR_factor_ref         0.0957
_reflns_number_gt                9070
_reflns_number_total             11174
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja301042u_si_002_4.cif
_cod_data_source_block           COMPOUND_3'-Ge
_cod_original_cell_volume        2867.00(19)
_cod_original_formula_sum        'C64.50 H78 B Ge N3 Si'
_cod_database_code               4117833