Chemistry of the heavy group 15 elements with the pyridyl tethered 1,2-bis(imino)acenaphthene "clamshell" ligand.
Brazeau, Allison L.; Jones, Nathan D.; Ragogna, Paul J.; Dalton transactions (Cambridge, England : 2003) 41 (2012) 7890–7896; doi:10.1039/c2dt30171g

data_7019306
_publ_section_title
;
 Chemistry of the heavy group 15 elements with the pyridyl tethered
 1,2-bis(imino)acenaphthene &quot;clamshell&quot; ligand.
;
_journal_issue                   26
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7890
_journal_page_last               7896
_journal_paper_doi               10.1039/c2dt30171g
_journal_volume                  41
_journal_year                    2012
_chemical_formula_moiety         'C33 H25 Cl4 N3 Sn, C H2 Cl2'
_chemical_formula_sum            'C34 H27 Cl6 N3 Sn'
_chemical_formula_weight         808.98
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 113.49(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.498(2)
_cell_length_b                   17.844(4)
_cell_length_c                   18.107(6)
_cell_measurement_reflns_used    7984
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     3407.2(16)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 1997-2001)'
_computing_data_reduction        DENZO-SMN
_computing_molecular_graphics    'SHELXTL/PC (Sheldrick, 2001)'
_computing_publication_material  SHELXTL/PC
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Nonius Kappa-CCD'
_diffrn_measurement_method       '\f scans, and \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  0.0250
_diffrn_reflns_av_sigmaI/netI    0.0343
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            15195
_diffrn_reflns_theta_full        27.46
_diffrn_reflns_theta_max         27.46
_diffrn_reflns_theta_min         1.68
_exptl_absorpt_coefficient_mu    1.250
_exptl_absorpt_correction_T_max  0.8347
_exptl_absorpt_correction_T_min  0.7452
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'DENZO-SMN (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.577
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1616
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.15
_refine_diff_density_max         2.546
_refine_diff_density_min         -1.191
_refine_diff_density_rms         0.266
_refine_ls_extinction_coef       0.0119(8)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.085
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     398
_refine_ls_number_reflns         7779
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.085
_refine_ls_R_factor_all          0.0728
_refine_ls_R_factor_gt           0.0574
_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^)+(0.1166P)^2^+5.8006P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1584
_refine_ls_wR_factor_ref         0.1808
_reflns_number_gt                6383
_reflns_number_total             7779
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt30171g.txt
_cod_data_source_block           2Sn
_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_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        3407.2(15)
_cod_original_sg_symbol_Hall     -P2ybc
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7019306