Dianion of Pyrrole-2-N-(o-hydroxyphenyl)carbaldimine as an Interesting Tridentate (ONN) Ligand System in Hypercoordinate Silicon Complexes
Gerlach, Daniela; Brendler, Erica; Heine, Thomas; Wagler, Jörg; Organometallics 26 (2007) 234–; doi:10.1021/om060869b

data_4072603
_publ_contact_author
;Wagler, J\"org 
 Institut f\"ur Anorganische Chemie  
 Technische Universit\"at Bergakademie Freiberg
 Leipziger Str. 29 
 09596 Freiberg 
 Bundesrepublik Deutschland
;
_publ_section_title
;
 Dianion of Pyrrole-2-N-(o-hydroxyphenyl)carbaldimine as an Interesting
 Tridentate (ONN) Ligand System in Hypercoordinate Silicon Complexes
;
_journal_issue                   1
_journal_name_full               Organometallics
_journal_page_first              234
_journal_paper_doi               10.1021/om060869b
_journal_volume                  26
_journal_year                    2007
_chemical_formula_moiety         'C14 H14 N2 O Si'
_chemical_formula_sum            'C14 H14 N2 O Si'
_chemical_formula_weight         254.36
_chemical_name_systematic
; 
 Pyrrole-2-N-(o-oxyphenyl)-carbaldiminato-silacyclobutane
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 90.328(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.9727(5)
_cell_length_b                   25.413(3)
_cell_length_c                   8.2155(8)
_cell_measurement_reflns_used    5973
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      30.11
_cell_measurement_theta_min      2.61
_cell_volume                     1247.0(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'ORTEP32 (Farugia)'
_computing_publication_material  'Ciftab (Sheldrick)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0204
_diffrn_reflns_av_sigmaI/netI    0.0314
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       35
_diffrn_reflns_limit_k_min       -35
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            14606
_diffrn_reflns_theta_full        29.99
_diffrn_reflns_theta_max         29.99
_diffrn_reflns_theta_min         2.95
_exptl_absorpt_coefficient_mu    0.177
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.355
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       piece
_exptl_crystal_F_000             536
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.232
_refine_diff_density_min         -0.185
_refine_diff_density_rms         0.034
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.01(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     325
_refine_ls_number_reflns         7168
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0471
_refine_ls_R_factor_gt           0.0361
_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^)+(0.0510P)^2^+0.0311P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0867
_refine_ls_wR_factor_ref         0.0916
_reflns_number_gt                6053
_reflns_number_total             7168
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om060869bsi20061113_084943.cif
_cod_data_source_block           compound_2_monoclinic
_cod_original_sg_symbol_Hall     P2yb
_cod_original_sg_symbol_H-M      P21
_cod_database_code               4072603