Differentially Substituted Acyclic Diaminocarbene Ligands Display Conformation-Dependent Donicities
Collins, Mary S.; Rosen, Evelyn L.; Lynch, Vincent M.; Bielawski, Christopher W.; Organometallics 29 (2010) 3047–; doi:10.1021/om1004226

data_4066372
_publ_section_title
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 Differentially Substituted Acyclic Diaminocarbene Ligands Display
 Conformation-Dependent Donicities
;
_journal_issue                   13
_journal_name_full               Organometallics
_journal_page_first              3047
_journal_paper_doi               10.1021/om1004226
_journal_volume                  29
_journal_year                    2010
_chemical_formula_moiety         'C27 H40 N2, 2 C O, Cl 1-, Ir 1+'
_chemical_formula_sum            'C29 H40 Cl Ir N2 O2'
_chemical_formula_weight         676.28
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.000(5)
_cell_angle_beta                 90.000(5)
_cell_angle_gamma                90.000(5)
_cell_formula_units_Z            8
_cell_length_a                   19.6592(6)
_cell_length_b                   19.2293(6)
_cell_length_c                   15.4810(5)
_cell_measurement_reflns_used    7305
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      1.0
_cell_volume                     5852.3(3)
_computing_cell_refinement       'Collect software, Nonius B.V. 1998'
_computing_data_collection       'Collect software, Nonius B.V. 1998'
_computing_data_reduction
;
DENZO and Scalepack (Otwinoski and Minor, 1997)
;
_computing_molecular_graphics    'XP SHELXTL/PC, Siemens Analytical'
_computing_structure_refinement  'XL SHELXTL/PC, Siemens Analytical'
_computing_structure_solution
;

SIR97 - Altomare A., Burla M.C., Camalli M., Cascarano G.L., Giacovazzo C., 
Guagliardi A., Moliterni A.G.G., Polidori G.,Spagna R.
;
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       \w-scans
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0191
_diffrn_reflns_av_sigmaI/netI    0.0286
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            12752
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         1.98
_exptl_absorpt_coefficient_mu    4.681
_exptl_absorpt_correction_T_max  1.10
_exptl_absorpt_correction_T_min  0.899
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
DENZO and Scalepack (Otwinoski and Minor, 1997)
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.535
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prisms
_exptl_crystal_F_000             2704
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.460
_refine_diff_density_min         -1.082
_refine_diff_density_rms         0.091
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.015
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     326
_refine_ls_number_reflns         6693
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.0409
_refine_ls_R_factor_gt           0.0262
_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^)+(0.0453P)^2^+0.5768P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0667
_refine_ls_wR_factor_ref         0.0737
_reflns_number_gt                5255
_reflns_number_total             6693
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om1004226_si_002.cif
_cod_data_source_block           4b
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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_values 1715 2011-07-08 13:25:40Z adriana 
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_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               4066372