Tautomerization of Pyridine and 2-Substituted Pyridines to Pyridylidene Ligands by the Iridium(I)‒Diene Complex TpMe2Ir(η4-CH2═C(Me)C(Me)═CH2)
Vattier, Florencia; Salazar, Verónica; Paneque, Margarita; Poveda, Manuel L.; Álvarez, Eleuterio; Organometallics 33 (2014) 498–; doi:10.1021/om400968s

data_4082280
_publ_section_title
;
 Tautomerization of Pyridine and 2-Substituted Pyridines to Pyridylidene
 Ligands by the Iridium(I)--Diene Complex
 TpMe2Ir(\h4-CH2&#x2550;C(Me)C(Me)&#x2550;CH2)
;
_journal_issue                   2
_journal_name_full               Organometallics
_journal_page_first              498
_journal_paper_doi               10.1021/om400968s
_journal_volume                  33
_journal_year                    2014
_chemical_formula_moiety         'C29 H45 B Ir N7 Si'
_chemical_formula_sum            'C29 H45 B Ir N7 Si'
_chemical_formula_weight         722.82
_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                 94.1900(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.5281(5)
_cell_length_b                   16.3714(9)
_cell_length_c                   18.5506(10)
_cell_measurement_reflns_used    9803
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      30.50
_cell_measurement_theta_min      2.49
_cell_volume                     3188.8(3)
_computing_cell_refinement       'APEX2 Software Suite (Bruker, 2007)'
_computing_data_collection       'APEX2 Software Suite (Bruker, 2007)'
_computing_data_reduction        'APEX2 Software Suite (Bruker, 2007)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL and publCIF (Westrip, 2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR2002 (Burla et al., 2003)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 8.26
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type
;
 Bruker-Nonius X8kappa APEX II CCD area detector'
;
_diffrn_measurement_method       'phi and omega scans with narrow frames'
_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  0.0479
_diffrn_reflns_av_sigmaI/netI    0.0184
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            168408
_diffrn_reflns_theta_full        30.66
_diffrn_reflns_theta_max         30.66
_diffrn_reflns_theta_min         2.30
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    4.254
_exptl_absorpt_correction_T_max  0.2031
_exptl_absorpt_correction_T_min  0.1779
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
program SADABS, Bruker (2001).
;
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.506
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1456
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.45
_exptl_crystal_size_min          0.40
_refine_diff_density_max         1.283
_refine_diff_density_min         -3.344
_refine_diff_density_rms         0.101
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.033
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     366
_refine_ls_number_reflns         9753
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.033
_refine_ls_R_factor_all          0.0300
_refine_ls_R_factor_gt           0.0241
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0366P)^2^+2.9238P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0602
_refine_ls_wR_factor_ref         0.0631
_reflns_number_gt                8513
_reflns_number_total             9753
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om400968s_si_002.cif
_cod_data_source_block           8c
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4082280