Cleavage of Ge‒Ge and Sn‒Sn Triple Bonds in Heavy Group 14 Element Alkyne Analogues (EAriPr4)2 (E = Ge, Sn; AriPr4 = C6H3-2,6(C6H3-2,6-iPr2)2) by Reaction with Group 6 Carbonyls
McCrea-Hendrick, Madison L.; Caputo, Christine A.; Linnera, Jarno; Vasko, Petra; Weinstein, Cory M.; Fettinger, James C.; Tuononen, Heikki M.; Power, Philip P.; Organometallics 35 (2016) 2759–; doi:10.1021/acs.organomet.6b00519

data_4088873
_publ_section_title
;
 Cleavage of Ge--Ge and Sn--Sn Triple Bonds in Heavy Group 14 Element
 Alkyne Analogues (EAriPr4)2 (E = Ge, Sn; AriPr4 =
 C6H3-2,6(C6H3-2,6-iPr2)2) by Reaction with Group 6 Carbonyls
;
_journal_issue                   16
_journal_name_full               Organometallics
_journal_page_first              2759
_journal_paper_doi               10.1021/acs.organomet.6b00519
_journal_volume                  35
_journal_year                    2016
_chemical_formula_moiety         'C68 H74 Cr2 Ge2 O8'
_chemical_formula_sum            'C68 H74 Cr2 Ge2 O8'
_chemical_formula_weight         1268.49
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 99.6740(10)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   10.80690(10)
_cell_length_b                   20.0758(3)
_cell_length_c                   14.1671(2)
_cell_measurement_reflns_used    9600
_cell_measurement_temperature    90(2)
_cell_measurement_theta_max      72.10
_cell_measurement_theta_min      6.06
_cell_volume                     3029.95(7)
_computing_cell_refinement       'SAINT (8.34a) (Bruker, 2013)'
_computing_data_collection       'Apex2 (2014.9-1) (Bruker, 2014)'
_computing_data_reduction        'SAINT (8.34a) (Bruker, 2013)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXT (Sheldrick, 2014)'
_diffrn_ambient_temperature      90(2)
_diffrn_measured_fraction_theta_full 0.969
_diffrn_measured_fraction_theta_max 0.929
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0229
_diffrn_reflns_av_unetI/netI     0.0412
_diffrn_reflns_Laue_measured_fraction_full 0.969
_diffrn_reflns_Laue_measured_fraction_max 0.929
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            8259
_diffrn_reflns_point_group_measured_fraction_full 0.969
_diffrn_reflns_point_group_measured_fraction_max 0.929
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         72.283
_diffrn_reflns_theta_min         4.699
_exptl_absorpt_coefficient_mu    4.460
_exptl_absorpt_correction_T_max  0.7536
_exptl_absorpt_correction_T_min  0.6221
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'TWINABS V2012/1 (Sheldrick, 2012)'
_exptl_crystal_colour            Purple
_exptl_crystal_density_diffrn    1.390
_exptl_crystal_description       Block
_exptl_crystal_F_000             1316
_exptl_crystal_size_max          0.108
_exptl_crystal_size_mid          0.104
_exptl_crystal_size_min          0.089
_refine_diff_density_max         1.357
_refine_diff_density_min         -0.754
_refine_diff_density_rms         0.083
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     369
_refine_ls_number_reflns         5571
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0494
_refine_ls_R_factor_gt           0.0433
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0745P)^2^+2.1648P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1199
_refine_ls_wR_factor_ref         0.1238
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4870
_reflns_number_total             5571
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            om6b00519_si_001.cif
_cod_data_source_block           MMH67TWF1
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_absorpt_correction_type' value 'Multi-scan' was
changed to 'multi-scan' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/ACS/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4088873
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.644
_shelx_estimated_absorpt_t_max   0.692
_shelx_res_checksum              92774
_shelx_hkl_checksum              46956