Variable-Temperature NMR Determination of the Barriers to Rotation about the Ir-C σ-Bond in a Series of Primary Perfluoroalkyl Iridium Complexes [IrCp*{(CF2)nCF3}(PMe3)2]+X- [n =1, 2, 3, 5, 7, 9, 11; X =I, OTf]
Cheryl J. Bourgeois; Hui Huang; Roman B. Larichev; Lev N. Zakharov; Arnold L. Rheingold; Russell P. Hughes; Organometallics 26 (2007) 264–271; doi:10.1021/om060822q

data_4063254
_publ_section_title
;
 Variable-Temperature NMR Determination of the Barriers to Rotation
 about the Ir-C \s-Bond in a Series of Primary Perfluoroalkyl Iridium
 Complexes [IrCp*{(CF2)nCF3}(PMe3)2]+X- [n \\db 1, 2, 3, 5, 7, 9, 11; X
 \\db I, OTf]
;
_journal_name_full               Organometallics
_journal_page_first              264
_journal_page_last               271
_journal_paper_doi               10.1021/om060822q
_journal_volume                  26
_journal_year                    2007
_chemical_formula_sum            'C26 H37 F21 I Ir O2 P2'
_chemical_formula_weight         1161.60
_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                 94.160(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   21.236(3)
_cell_length_b                   8.7661(10)
_cell_length_c                   20.491(2)
_cell_measurement_reflns_used    5873
_cell_measurement_temperature    208(2)
_cell_measurement_theta_max      27.56
_cell_measurement_theta_min      2.27
_cell_volume                     3804.4(8)
_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      208(2)
_diffrn_measured_fraction_theta_full 0.953
_diffrn_measured_fraction_theta_max 0.953
_diffrn_measurement_device_type  'CCD area detector'
_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  0.0465
_diffrn_reflns_av_sigmaI/netI    0.0586
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            29884
_diffrn_reflns_theta_full        28.20
_diffrn_reflns_theta_max         28.20
_diffrn_reflns_theta_min         0.96
_exptl_absorpt_coefficient_mu    4.534
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.663
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.028
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             2232
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.09
_exptl_crystal_size_min          0.06
_refine_diff_density_max         1.540
_refine_diff_density_min         -1.443
_refine_diff_density_rms         0.144
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     494
_refine_ls_number_reflns         8934
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0555
_refine_ls_R_factor_gt           0.0371
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0498P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0856
_refine_ls_wR_factor_ref         0.0970
_reflns_number_gt                6874
_reflns_number_total             8934
_reflns_threshold_expression     >2sigma(I)
_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.

'_exptl_absorpt_correction_type' value 'Multi-scan' changed
to 'multi-scan' 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_sg_symbol_H-M      P2(1)/c
_cod_database_code               4063254