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_4072604
_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_melting_point          '406 K decomp. without melting'
_chemical_name_systematic
; 
 Pyrrole-2-N-(o-oxyphenyl)-carbaldiminato-silacyclobutane
;
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   25.2284(6)
_cell_length_b                   5.8708(2)
_cell_length_c                   16.3026(5)
_cell_measurement_reflns_used    5422
_cell_measurement_temperature    90(2)
_cell_measurement_theta_max      36.13
_cell_measurement_theta_min      2.98
_cell_volume                     2414.59(12)
_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      90(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi 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  0.0522
_diffrn_reflns_av_sigmaI/netI    0.0290
_diffrn_reflns_limit_h_max       43
_diffrn_reflns_limit_h_min       -41
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            54421
_diffrn_reflns_theta_full        38.00
_diffrn_reflns_theta_max         38.00
_diffrn_reflns_theta_min         1.49
_exptl_absorpt_coefficient_mu    0.183
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.399
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1072
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.715
_refine_diff_density_min         -0.317
_refine_diff_density_rms         0.069
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     326
_refine_ls_number_reflns         6742
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.052
_refine_ls_R_factor_all          0.0479
_refine_ls_R_factor_gt           0.0378
_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^)+(0.0641P)^2^+0.1444P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0983
_refine_ls_wR_factor_ref         0.1029
_reflns_number_gt                5843
_reflns_number_total             6742
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om060869bsi20061113_084943.cif
_cod_data_source_block           compound_2_orthorhombic
_cod_original_sg_symbol_Hall     P2c-2ac
_cod_original_sg_symbol_H-M      Pca21
_cod_database_code               4072604