NCN Trianionic Pincer Ligand Precursors: Synthesis of Bimetallic, Chelating Diamide, and Pincer Group IV Complexes
Soumya Sarkar; Kevin P. McGowan; Jeffrey A. Culver; Adam R. Carlson; Jürgen Koller; Andrew J. Peloquin; Melanie K. Veige; Khalil A. Abboud; Adam S. Veige; Inorganic Chemistry 49 (2010) 5143–5156; doi:10.1021/ic100232s

data_4315608
_publ_section_title
;
 NCN Trianionic Pincer Ligand Precursors: Synthesis of Bimetallic,
 Chelating Diamide, and Pincer Group IV Complexes
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              5143
_journal_page_last               5156
_journal_paper_doi               10.1021/ic100232s
_journal_volume                  49
_journal_year                    2010
_chemical_formula_sum            'C19 H30 N Si'
_chemical_formula_weight         300.53
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2010-01-28 # Formatted by publCIF
;
_cell_angle_alpha                90.00
_cell_angle_beta                 92.947(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   17.3735(2)
_cell_length_b                   8.7733(5)
_cell_length_c                   24.6156(14)
_cell_measurement_reflns_used    83
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      28.0
_cell_measurement_theta_min      2.0
_cell_volume                     3747.0(3)
_computing_cell_refinement
'Bruker SMART v5.624 & SAINT 6.36a (Bruker 1998'
_computing_data_collection       'Bruker SMART v5.624 (Bruker 1998)'
_computing_data_reduction        'Bruker SHELXTL v6.12 (Bruker 2000)'
_computing_molecular_graphics    'Bruker SHELXTL v6.12'
_computing_publication_material  'Bruker SHELXTL v6.12'
_computing_structure_refinement  'Bruker SHELXTL v6.12'
_computing_structure_solution    'Bruker SHELXTL v6.12'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.980
_diffrn_measured_fraction_theta_max 0.980
_diffrn_measurement_device_type  'SMART CCD area detector'
_diffrn_measurement_method       '\w 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  0.0317
_diffrn_reflns_av_sigmaI/netI    0.0294
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            11752
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         1.66
_diffrn_standards_decay_%        '< 1'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.121
_exptl_absorpt_correction_T_max  0.9895
_exptl_absorpt_correction_T_min  0.9733
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details
'based on measured indexed crystal faces, Bruker SHELXTL  v6.12 (Bruker 1998)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.065
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plates
_exptl_crystal_F_000             1320
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.300
_refine_diff_density_min         -0.253
_refine_diff_density_rms         0.040
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.022
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     191
_refine_ls_number_reflns         4227
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.022
_refine_ls_R_factor_all          0.0530
_refine_ls_R_factor_gt           0.0414
_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^)+(0.0512P)^2^+2.6807P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1041
_refine_ls_wR_factor_ref         0.1117
_reflns_number_gt                3473
_reflns_number_total             4227
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ic100232s_si_001_05.cif
_cod_data_source_block           kv07
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_original_cell_volume        3747.0(4)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4315608