α-Cleavage of Phenyl Groups from GePh3Ligands in Iridium Carbonyl Cluster Complexes. A Mechanism and Its Role in the Synthesis of Bridging Germylene Ligands
Adams, Richard D.; Fang, Fang; Zhang, Qiang; Hall, Michael B.; Trufan, Eszter; Organometallics 31 (2012) 2621–; doi:10.1021/om2007002

data_4077846
_publ_section_title
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 \a-Cleavage of Phenyl Groups from GePh3Ligands in Iridium Carbonyl
 Cluster Complexes. A Mechanism and Its Role in the Synthesis of Bridging
 Germylene Ligands
;
_journal_issue                   7
_journal_name_full               Organometallics
_journal_page_first              2621
_journal_paper_doi               10.1021/om2007002
_journal_volume                  31
_journal_year                    2012
_chemical_formula_sum            'C90 H65 Ge5 Ir3 O6'
_chemical_formula_weight         2181.97
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 91.1290(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.2440(5)
_cell_length_b                   20.8662(7)
_cell_length_c                   24.0340(8)
_cell_measurement_reflns_used    5207
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      28.18
_cell_measurement_theta_min      2.31
_cell_volume                     8144.8(5)
_computing_cell_refinement       'SAINT+  V6.45 (Bruker, 2003)'
_computing_data_collection       'SMART V5.632 (Bruker, 2005)'
_computing_data_reduction        'SAINT+  V6.45'
_computing_molecular_graphics    'SHELXTL V6.1 (Sheldrick, 2000)'
_computing_publication_material  'SHELXTL V6.1'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      294(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART APEX CCD diffractometer'
_diffrn_measurement_method       '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  0.1405
_diffrn_reflns_av_sigmaI/netI    0.0930
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            94948
_diffrn_reflns_theta_full        24.41
_diffrn_reflns_theta_max         24.41
_diffrn_reflns_theta_min         1.50
_diffrn_standards_decay_%        <1
_exptl_absorpt_coefficient_mu    6.751
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.740
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS, Bruker, 1997)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.779
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             4176
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.921
_refine_diff_density_min         -1.158
_refine_diff_density_rms         0.165
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.086
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     790
_refine_ls_number_reflns         13383
_refine_ls_number_restraints     12
_refine_ls_restrained_S_all      1.086
_refine_ls_R_factor_all          0.1139
_refine_ls_R_factor_gt           0.0785
_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^)+(0.0800P)^2^+59.5572P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1797
_refine_ls_wR_factor_ref         0.1980
_reflns_number_gt                9820
_reflns_number_total             13383
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om2007002_si_002.cif
_cod_data_source_block           4
_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_values 1715 2011-07-08 13:25:40Z adriana 
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_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4077846