Bent metal carbene geometries in amido N-heterocyclic carbene complexes
Mungur, Shaheed A.; Liddle, Stephen T.; Wilson, Claire; Sarsfield, Mark J.; Arnold, Polly L.; Chemical Communications  (2004) 2738–2739; doi:10.1039/b410074c

data_7111460
_publ_section_title
;
 Bent metal carbene geometries in amido N-heterocyclic carbene complexes
;
_journal_issue                   23
_journal_name_full               'Chemical Communications'
_journal_page_first              2738
_journal_page_last               2739
_journal_paper_doi               10.1039/b410074c
_journal_year                    2004
_chemical_formula_moiety         'C26 H48 Mg N6'
_chemical_formula_sum            'C26 H48 Mg N6'
_chemical_formula_weight         469.01
_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           'enCIFer editing of SHELXL97 CIF output'
_cell_angle_alpha                90.00
_cell_angle_beta                 95.341(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   11.4773(8)
_cell_length_b                   17.5050(13)
_cell_length_c                   28.222(2)
_cell_measurement_reflns_used    6054
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.26
_cell_measurement_theta_min      2.19
_cell_volume                     5645.5(7)
_computing_cell_refinement       'Bruker SAINT version 6.36a (Bruker, 2000)'
_computing_data_collection       'Bruker SMART version 5.625 (Bruker, 2001)'
_computing_data_reduction        'Bruker SAINT; Bruker SHELXTL (Bruker, 2001)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material
'enCIFer(Allen et al.,2004);PLATON(Spek,2003)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker SMART APEX CCD diffractometer'
_diffrn_measurement_method       '\w rotation with narrow frames'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.032
_diffrn_reflns_av_sigmaI/netI    0.033
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       36
_diffrn_reflns_limit_l_min       -36
_diffrn_reflns_number            24105
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         2.13
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.087
_exptl_absorpt_correction_T_max  0.985
_exptl_absorpt_correction_T_min  0.960
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   '(SADABS; Bruker, 2001)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.104
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2064
_exptl_crystal_size_max          0.47
_exptl_crystal_size_mid          0.44
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.615
_refine_diff_density_min         -0.399
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     325
_refine_ls_number_reflns         6476
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0703
_refine_ls_R_factor_gt           0.0455
_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^)+(0.0652P)^2^+2.7138P] where P==(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1123
_refine_ls_wR_factor_ref         0.1252
_reflns_number_gt                4722
_reflns_number_total             6476
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            b410074csup1.cif
_cod_data_source_block           MGCBTB
_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        5645.4(7)
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7111460