Controlling the coordination modes of a new and highly flexible ligand bearing two N-heterocyclic carbene moieties at a bipyridine backbone
Deißler, Christine; Rominger, Frank; Kunz, Doris; Dalton Transactions  (2009) 7152–; doi:10.1039/b907041a

data_7002031
_publ_section_title
;
 Controlling the coordination modes of a new and highly flexible ligand
 bearing two N-heterocyclic carbene moieties at a bipyridine backbone
;
_journal_issue                   35
_journal_name_full               'Dalton Transactions'
_journal_page_first              7152
_journal_paper_doi               10.1039/b907041a
_journal_year                    2009
_chemical_formula_sum            'C24 H28 B2 F8 N8'
_chemical_formula_weight         602.16
_chemical_name_common            '3 in manuscript'
_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                 90.122(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.6257(14)
_cell_length_b                   18.518(4)
_cell_length_c                   11.731(3)
_cell_measurement_reflns_used    3143
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      24.97
_cell_measurement_theta_min      3.07
_cell_volume                     1439.3(6)
_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      200(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Bruker APEX'
_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  0.0299
_diffrn_reflns_av_sigmaI/netI    0.0237
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            10543
_diffrn_reflns_theta_full        24.16
_diffrn_reflns_theta_max         24.16
_diffrn_reflns_theta_min         1.10
_exptl_absorpt_coefficient_mu    0.122
_exptl_absorpt_correction_T_max  0.9879
_exptl_absorpt_correction_T_min  0.9417
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Sheldrick, G. M. (2008). <i>SADABS</i>. University of G\"ottingen, Germany.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.389
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       polyhedron
_exptl_crystal_F_000             620
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.363
_refine_diff_density_min         -0.310
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     213
_refine_ls_number_reflns         2306
_refine_ls_number_restraints     94
_refine_ls_restrained_S_all      1.084
_refine_ls_R_factor_all          0.0776
_refine_ls_R_factor_gt           0.0669
_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^)+(0.1210P)^2^+0.4858P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1781
_refine_ls_wR_factor_ref         0.1872
_reflns_number_gt                1941
_reflns_number_total             2306
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b907041a.txt
_cod_data_source_block           cd14
_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        1439.3(5)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7002031