Catalytic Trimerization of Bis-silylated Diazomethane
Muhammad Farooq Ibad; Peter Langer; Fabian Reiß; Axel Schulz; Alexander Villinger; Journal of the American Chemical Society 134 (2012) 17757–17768; doi:10.1021/ja308104k

data_4118823
_publ_contact_author_address
;
Universit\"at Rostock
Institut f\"ur Chemie
Abteilung f\"ur Anorganische Chemie
Albert-Einstein-Strasse 3a 
18059 Rostock
Bundesrepublik Deutschland
;
_publ_contact_author_email
;
axel.schulz@uni-rostock.de, alexander.villinger@uni-rostock.de'
;
_publ_contact_author_fax         '+49 (0)381/498-6382'
_publ_contact_author_name        'Axel Schulz, Alexander Villinger'
_publ_contact_author_phone       '+49 (0)381/498-6400 or 6403'
_publ_section_title
;
 Catalytic Trimerization of Bis-silylated Diazomethane
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              17757
_journal_page_last               17768
_journal_paper_doi               10.1021/ja308104k
_journal_volume                  134
_journal_year                    2012
_chemical_formula_moiety         'C21 H54 N6 Si6 , 0.5(C6 H18 O Si2)'
_chemical_formula_sum            'C24 H63 N6 O0.5 Si7'
_chemical_formula_weight         640.43
_chemical_name_systematic
;
4-(trimethylsilyl)diazenyl-3-[N,N',N'-tris(trimethylsilyl)]hydrazinyl-
1H-pyrazole hexamethyldisiloxane hemisolvate
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_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_author_name               'Villinger, A.'
_audit_creation_method           SHELXL-97
_cell_angle_alpha                95.703(2)
_cell_angle_beta                 104.490(2)
_cell_angle_gamma                94.198(2)
_cell_formula_units_Z            2
_cell_length_a                   11.7738(5)
_cell_length_b                   12.8782(6)
_cell_length_c                   13.9450(6)
_cell_measurement_reflns_used    9938
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      59.147
_cell_measurement_theta_min      5.045
_cell_volume                     2026.44(16)
_computing_cell_refinement       'Bruker Apex v2.0-2'
_computing_data_collection       'Bruker Apex v2.0-2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 1997)'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker Kappa Apex II-CCD-diffractometer'
_diffrn_measurement_method       'phi and psi scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0364
_diffrn_reflns_av_sigmaI/netI    0.0353
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            52364
_diffrn_reflns_theta_full        30.00
_diffrn_reflns_theta_max         30.00
_diffrn_reflns_theta_min         2.28
_exptl_absorpt_coefficient_mu    0.258
_exptl_absorpt_correction_T_max  0.9623
_exptl_absorpt_correction_T_min  0.8970
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 2004)'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.050
_exptl_crystal_description       block
_exptl_crystal_F_000             702
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.400
_refine_diff_density_min         -0.444
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     364
_refine_ls_number_reflns         11751
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.0622
_refine_ls_R_factor_gt           0.0393
_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^)+(0.0647P)^2^+0.1135P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1076
_refine_ls_wR_factor_ref         0.1161
_reflns_number_gt                8655
_reflns_number_total             11751
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            ja308104k_si_001_12.cif
_cod_data_source_block           av_fi21_(cnn)3_siosi
_cod_original_cell_volume        2026.44(15)
_cod_original_formula_sum        'C24 H63 N6 O0.50 Si7'
_cod_database_code               4118823