Reactions of Scorpionate-Anchored Yttrium and Lutetium Dialkyls with Terminal Alkynes: From Bimetallic Complexes with Bridging Enynediyl Ligands to Monomeric Terminal Dialkynyl Complexes†
Saliu, Kuburat O.; Cheng, Jianhua; McDonald, Robert; Ferguson, Michael J.; Takats, Josef; Organometallics 29 (2010) 4950–; doi:10.1021/om100393w

data_4066315
_publ_section_title
;
 Reactions of Scorpionate-Anchored Yttrium and Lutetium Dialkyls with
 Terminal Alkynes: From Bimetallic Complexes with Bridging Enynediyl
 Ligands to Monomeric Terminal Dialkynyl Complexes&#x2020;
;
_journal_issue                   21
_journal_name_full               Organometallics
_journal_page_first              4950
_journal_paper_doi               10.1021/om100393w
_journal_volume                  29
_journal_year                    2010
_chemical_formula_moiety         'C78 H104 B2 N12 Y2, 2(C7 H8)'
_chemical_formula_sum            'C92 H120 B2 N12 Y2'
_chemical_formula_weight         1593.44
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                117.2316(13)
_cell_angle_beta                 106.2321(15)
_cell_angle_gamma                97.2544(15)
_cell_formula_units_Z            2
_cell_length_a                   16.8323(14)
_cell_length_b                   18.1731(15)
_cell_length_c                   19.2000(16)
_cell_measurement_reflns_used    5211
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      19.78
_cell_measurement_theta_min      2.21
_cell_volume                     4786.7(7)
_computing_cell_refinement       'Bruker SAINT (Bruker, 1997)'
_computing_data_collection       'Bruker SMART (Bruker, 1997)'
_computing_data_reduction        'Bruker SAINT (Bruker, 1997)'
_computing_molecular_graphics    'Bruker SHELXTL (Bruker, 1997)'
_computing_publication_material  'Bruker SHELXTL (Bruker, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      193(2)
_diffrn_detector_area_resol_mean 8.192
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type
'Bruker PLATFORM diffractometer/SMART 1000 CCD area detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0624
_diffrn_reflns_av_sigmaI/netI    0.1252
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            33178
_diffrn_reflns_theta_full        25.25
_diffrn_reflns_theta_max         25.25
_diffrn_reflns_theta_min         1.77
_exptl_absorpt_coefficient_mu    1.253
_exptl_absorpt_correction_T_max  0.8850
_exptl_absorpt_correction_T_min  0.6408
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.106
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       fragment
_exptl_crystal_F_000             1688
_exptl_crystal_size_max          0.39
_exptl_crystal_size_mid          0.29
_exptl_crystal_size_min          0.10
_platon_squeeze_details
;
 Attempts to refine peaks of residual electron density as partially
 occupied/disordered solvent toluene molecules were unsuccessful. The
 data were corrected for disordered electron density through use of
 the SQUEEZE procedure as implemented in PLATON. A total solvent
 accessible void volume and electron count consistent with an additional
 2.00 equivalents of toluene molecules per asymmetic unit.
;
_refine_diff_density_max         2.507
_refine_diff_density_min         -0.859
_refine_diff_density_rms         0.078
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.889
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     859
_refine_ls_number_reflns         17236
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.889
_refine_ls_R_factor_all          0.1393
_refine_ls_R_factor_gt           0.0742
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1092P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1753
_refine_ls_wR_factor_ref         0.1979
_reflns_number_gt                8229
_reflns_number_total             17236
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            om100393w_si_002.cif
_cod_data_source_block           6-Y
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 
;
_cod_original_cell_volume        4786.6(7)
_cod_database_code               4066315