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_4068825
_publ_section_title
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 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            'C24 H47 N3 O2 W'
_chemical_formula_weight         593.50
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.5977(8)
_cell_length_b                   11.6455(8)
_cell_length_c                   22.844(2)
_cell_measurement_reflns_used    9894
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      2
_cell_volume                     2819.3(4)
_computing_cell_refinement       'Bruker APEX2'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker APEX2'
_computing_molecular_graphics    'Bruker XP'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX2 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  0.0666
_diffrn_reflns_av_sigmaI/netI    0.0466
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            48991
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.87
_diffrn_reflns_theta_min         2.50
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    4.119
_exptl_absorpt_correction_T_max  0.7341
_exptl_absorpt_correction_T_min  0.5437
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.398
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       tablet
_exptl_crystal_F_000             1208
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.717
_refine_diff_density_min         -0.994
_refine_diff_density_rms         0.118
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.157(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    'methyls rigid and others riding'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     272
_refine_ls_number_reflns         6714
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.0360
_refine_ls_R_factor_gt           0.0266
_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^)+(0.0042P)^2^+2.1158P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0435
_refine_ls_wR_factor_ref         0.0459
_reflns_number_gt                6083
_reflns_number_total             6714
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om801119t_si_005.cif
_cod_data_source_block           4a
_cod_depositor_comments
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The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
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_cod_database_code               4068825