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_7002038
_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            'C30 H24 Ag2 Cl2 N6'
_chemical_formula_weight         755.19
_chemical_name_common            '14 in manuscript'
_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                 113.895(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   27.896(7)
_cell_length_b                   9.701(2)
_cell_length_c                   11.654(3)
_cell_measurement_reflns_used    2082
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      28.24
_cell_measurement_theta_min      2.25
_cell_volume                     2883.5(12)
_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  0.0762
_diffrn_reflns_av_sigmaI/netI    0.1037
_diffrn_reflns_limit_h_max       37
_diffrn_reflns_limit_h_min       -37
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            9643
_diffrn_reflns_theta_full        28.32
_diffrn_reflns_theta_max         28.32
_diffrn_reflns_theta_min         1.60
_exptl_absorpt_coefficient_mu    1.575
_exptl_absorpt_correction_T_max  0.9692
_exptl_absorpt_correction_T_min  0.6409
_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    1.740
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       polyhedron
_exptl_crystal_F_000             1496
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.03
_exptl_crystal_size_min          0.02
_refine_diff_density_max         1.621
_refine_diff_density_min         -1.121
_refine_diff_density_rms         0.221
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.368
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     182
_refine_ls_number_reflns         3553
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.368
_refine_ls_R_factor_all          0.1816
_refine_ls_R_factor_gt           0.1390
_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^)+(0.0769P)^2^+90.9845P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2682
_refine_ls_wR_factor_ref         0.2900
_reflns_number_gt                2521
_reflns_number_total             3553
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b907041a.txt
_cod_data_source_block           cd11
_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        2883.4(12)
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7002038