Bis- and tris(2-seleno-1-methylimidazolyl)hydroborato complexes, {[BseMe]ZnX}2(X=Cl, I), [BseMe]2Zn and [TseMe]Re(CO)3: structural evidence that the [BseMe] ligand is not merely a "heavier" version of the sulfur counterpart, [BmMe].
Landry, Victoria K.; Buccella, Daniela; Pang, Keliang; Parkin, Gerard; Dalton transactions (Cambridge, England : 2003)  (2007) 866–870; doi:10.1039/b616630j

data_7005091
_publ_section_title
;
 Bis- and tris(2-seleno-1-methylimidazolyl)hydroborato complexes,
 {[BseMe]ZnX}2(X=Cl, I), [BseMe]2Zn and [TseMe]Re(CO)3: structural
 evidence that the [BseMe] ligand is not merely a "heavier" version of
 the sulfur counterpart, [BmMe].
;
_journal_issue                   8
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              866
_journal_page_last               870
_journal_paper_doi               10.1039/b616630j
_journal_year                    2007
_chemical_formula_sum            'C16 H24 B2 N8 Se4 Zn'
_chemical_formula_weight         731.26
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 93.4550(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.5572(4)
_cell_length_b                   14.3524(5)
_cell_length_c                   18.9224(8)
_cell_measurement_reflns_used    7261
_cell_measurement_temperature    243(2)
_cell_measurement_theta_max      28.35
_cell_measurement_theta_min      2.45
_cell_volume                     2590.84(18)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      243(2)
_diffrn_measured_fraction_theta_full 0.945
_diffrn_measured_fraction_theta_max 0.945
_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  0.0319
_diffrn_reflns_av_sigmaI/netI    0.0368
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            18394
_diffrn_reflns_theta_full        28.37
_diffrn_reflns_theta_max         28.37
_diffrn_reflns_theta_min         1.78
_exptl_absorpt_coefficient_mu    6.588
_exptl_absorpt_correction_T_max  0.5587
_exptl_absorpt_correction_T_min  0.5587
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            COLORLESS
_exptl_crystal_density_diffrn    1.875
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             1408
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.440
_refine_diff_density_min         -0.595
_refine_diff_density_rms         0.098
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.147
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     292
_refine_ls_number_reflns         6123
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.147
_refine_ls_R_factor_all          0.0520
_refine_ls_R_factor_gt           0.0301
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0300P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0657
_refine_ls_wR_factor_ref         0.0725
_reflns_number_gt                4529
_reflns_number_total             6123
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b616630j.txt
_cod_data_source_block           bsezns10
_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.

'_exptl_absorpt_correction_type' value 'EMPIRICAL' changed to
'empirical' 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_sg_symbol_H-M      P2(1)/n
_cod_database_code               7005091