Experimental and Theoretical Investigations of Catalytic Alkyne Cross-Metathesis with Imidazolin-2-iminato Tungsten Alkylidyne Complexes
Beer, Stephan; Brandhorst, Kai; Hrib, Cristian G.; Wu, Xian; Haberlag, Birte; Grunenberg, Jörg; Jones, Peter G.; Tamm, Matthias; Organometallics 28 (2009) 1534–; doi:10.1021/om801119t

data_4068823
_publ_section_title
;
 Experimental and Theoretical Investigations of Catalytic Alkyne
 Cross-Metathesis with Imidazolin-2-iminato Tungsten Alkylidyne Complexes
;
_journal_issue                   5
_journal_name_full               Organometallics
_journal_page_first              1534
_journal_paper_doi               10.1021/om801119t
_journal_volume                  28
_journal_year                    2009
_chemical_formula_sum            'C17 H36 O3 W'
_chemical_formula_weight         472.31
_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                 90.022(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   9.9821(10)
_cell_length_b                   13.6032(14)
_cell_length_c                   30.815(3)
_cell_measurement_reflns_used    9860
_cell_measurement_temperature    133(2)
_cell_measurement_theta_max      30
_cell_measurement_theta_min      2
_cell_volume                     4184.3(7)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Siemens XP'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      133(2)
_diffrn_detector_area_resol_mean 8.192
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker SMART 1000 CCD'
_diffrn_measurement_method       '\w- and \f-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  0.0616
_diffrn_reflns_av_sigmaI/netI    0.0306
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       44
_diffrn_reflns_limit_l_min       -44
_diffrn_reflns_number            179826
_diffrn_reflns_theta_full        30.00
_diffrn_reflns_theta_max         30.58
_diffrn_reflns_theta_min         0.66
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    5.528
_exptl_absorpt_correction_T_max  0.7696
_exptl_absorpt_correction_T_min  0.5745
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.499
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       tablet
_exptl_crystal_F_000             1888
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.846
_refine_diff_density_min         -1.514
_refine_diff_density_rms         0.177
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.068
_refine_ls_hydrogen_treatment    'rigid methyls'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     404
_refine_ls_number_reflns         12832
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.0470
_refine_ls_R_factor_gt           0.0326
_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^)+(0.0121P)^2^+21.1847P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0603
_refine_ls_wR_factor_ref         0.0669
_reflns_number_gt                11160
_reflns_number_total             12832
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om801119t_si_003.cif
_cod_data_source_block           2
_cod_original_cell_volume        4184.4(8)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4068823