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_4118812
_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         'C18 H46 N6 Si5'
_chemical_formula_sum            'C18 H46 N6 Si5'
_chemical_formula_weight         487.06
_chemical_name_systematic
;
(4Z,5Z)-5-[bis(trimethylsilyl)hydrazin-1-ylidene]-1,3-bis(trimethylsilyl)-4-
(2-trimethylsilyl)hydrazin-1-ylidene)pyrazole
;
_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                107.678(2)
_cell_angle_beta                 90.213(2)
_cell_angle_gamma                112.531(2)
_cell_formula_units_Z            2
_cell_length_a                   10.3442(4)
_cell_length_b                   12.3935(4)
_cell_length_c                   14.0201(5)
_cell_measurement_reflns_used    4958
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      52.812
_cell_measurement_theta_min      4.432
_cell_volume                     1567.01(10)
_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  0.0380
_diffrn_reflns_av_sigmaI/netI    0.0494
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            21027
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         2.47
_exptl_absorpt_coefficient_mu    0.243
_exptl_absorpt_correction_T_max  0.9808
_exptl_absorpt_correction_T_min  0.9155
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 2004)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.032
_exptl_crystal_description       plate
_exptl_crystal_F_000             532
_exptl_crystal_size_max          0.37
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.346
_refine_diff_density_min         -0.350
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     309
_refine_ls_number_reflns         5791
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0837
_refine_ls_R_factor_gt           0.0507
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0480P)^2^+0.6150P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1109
_refine_ls_wR_factor_ref         0.1211
_reflns_number_gt                4066
_reflns_number_total             5791
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            ja308104k_si_001_01.cif
_cod_data_source_block           av_fi25a2_(cnn)3_H
_cod_database_code               4118812