Synthesis and Structural Characterization of Tin Analogues of N-Heterocyclic Carbenes
Stephen M. Mansell; Christopher A. Russell; Duncan F. Wass; Inorganic Chemistry 47 (2008) 11367–11375; doi:10.1021/ic801479g

data_4306654
_publ_contact_author
; 
    Dr. Chris Russell
    School of Chemistry
    University of Bristol
    Cantock's Close
    BS8 1TS Bristol
    UK
;
_publ_contact_author_email       Chris.Russell@bristol.ac.uk
_publ_contact_author_fax         '0117 9290509'
_publ_contact_author_phone       '0117 9287599'
_publ_section_title
;
Synthesis and Structural Characterization of Tin Analogues of N-Heterocyclic
Carbenes
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              11367
_journal_page_last               11375
_journal_paper_doi               10.1021/ic801479g
_journal_volume                  47
_journal_year                    2008
_chemical_formula_moiety         'C26 H38 N2 Sn'
_chemical_formula_sum            'C26 H38 N2 Sn'
_chemical_formula_weight         497.27
_chemical_name_systematic
; 
 ? 
;
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 102.82(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   20.165(4)
_cell_length_b                   6.5412(13)
_cell_length_c                   19.886(4)
_cell_measurement_reflns_used    3193
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.07
_cell_volume                     2557.6(9)
_computing_cell_refinement       'BRUKER SAINT'
_computing_data_collection       'BRUKER SMART'
_computing_data_reduction        'BRUKER sAINT'
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.5
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       '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  0.0178
_diffrn_reflns_av_sigmaI/netI    0.0154
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            13985
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.07
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.012
_exptl_absorpt_correction_T_max  0.95
_exptl_absorpt_correction_T_min  0.804
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS v2.10 (BRUKER-AXS, 2003)'
_exptl_crystal_colour            Orange
_exptl_crystal_density_diffrn    1.291
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             1032
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.151
_refine_diff_density_min         -0.674
_refine_diff_density_rms         0.076
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.206
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     149
_refine_ls_number_reflns         2937
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.206
_refine_ls_R_factor_all          0.0430
_refine_ls_R_factor_gt           0.0417
_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^)+(0.0241P)^2^+9.0235P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0980
_refine_ls_wR_factor_ref         0.0987
_reflns_number_gt                2829
_reflns_number_total             2937
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic801479g_si_001_1.cif
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_cell_volume        2557.7(9)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4306654