[W(CO)(dppe)2] Cumulenylidene and Acetylide Complexes Accessed via Stannylated Acetylenes and Butadiynes
Semenov, Sergey N.; Blacque, Olivier; Fox, Thomas; Venkatesan, Koushik; Berke, Heinz; Organometallics 29 (2010) 6321–; doi:10.1021/om100702x

data_4066905
_publ_section_title
;
 [W(CO)(dppe)2] Cumulenylidene and Acetylide Complexes Accessed via
 Stannylated Acetylenes and Butadiynes
;
_journal_issue                   23
_journal_name_full               Organometallics
_journal_page_first              6321
_journal_paper_doi               10.1021/om100702x
_journal_volume                  29
_journal_year                    2010
_chemical_formula_moiety         '4(C63 H66 O P4 Si Sn W), 2.5(C6 H14), C6 H6'
_chemical_formula_sum            'C273 H305 O4 P16 Si4 Sn4 W4'
_chemical_formula_weight         5468.26
_chemical_name_systematic
;
[cis-(4-trimethylsilyl-4-trimethylstannylbutatrienylidene)
bis{1,2-bis(diphenylphosphino)ethane}carbonyltungsten]
;
_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                88.543(1)
_cell_angle_beta                 89.504(1)
_cell_angle_gamma                85.639(1)
_cell_formula_units_Z            1
_cell_length_a                   12.3443(2)
_cell_length_b                   16.1288(3)
_cell_length_c                   34.9284(7)
_cell_measurement_reflns_used    21862
_cell_measurement_temperature    183(2)
_cell_measurement_theta_max      29.33
_cell_measurement_theta_min      2.29
_cell_volume                     6931.7(2)
_computing_cell_refinement
' CrysAlisPro Software, Oxford Diffraction Ltd., Version 1.171.32.15'
_computing_data_collection
' CrysAlisPro Software, Oxford Diffraction Ltd., Version 1.171.32.15'
_computing_data_reduction
' CrysAlisPro Software, Oxford Diffraction Ltd., Version 1.171.32.15'
_computing_molecular_graphics
; ORTEP-3 for Windows, Version 1.08.
  Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565.
;
_computing_publication_material
; WinGX - An integrated system of Windows programs for the solution,
 refinment and analysis of single crystal X-ray diffraction data,
 Version 1.70.01.
 Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837-838.
 SHELXL97. Program for crystal structure refinement.
 Sheldrick, G.M. (2008). Acta Cryst. A64, 112-122.
 PLATON for Windows, Version 1.12.
 Spek, A. L. (2003). J. Appl. Cryst. 36, 7-13. 
;
_computing_structure_refinement
; SHELXL97. Program for crystal structure refinement.
  Sheldrick, G.M. (2008). Acta Cryst. A64, 112-122.
;
_computing_structure_solution
; SHELXS97. Program for Crystal Structure solution.
  Sheldrick, G.M. (2008). Acta Cryst. A64, 112-122.  
;
_diffrn_ambient_temperature      183(2)
_diffrn_detector_area_resol_mean 10.4498
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type
; Oxford Diffraction (2007). Oxford Diffraction Ltd., 
Xcalibur CCD system
;
_diffrn_measurement_method       'omega and phi scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0568
_diffrn_reflns_av_sigmaI/netI    0.1102
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       43
_diffrn_reflns_limit_l_min       -43
_diffrn_reflns_number            73666
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         2.30
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 50
_diffrn_standards_interval_time  140
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    2.165
_exptl_absorpt_correction_T_max  0.826
_exptl_absorpt_correction_T_min  0.687
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
R.C. Clark and J.S. Reid, Acta Cryst. 1995, A51, 887-897
implemented in the CrysAlis Software system, Oxford Diffraction Ltd.,
Version 1.171.32.
;
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.293
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2729
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.11
_refine_diff_density_max         1.772
_refine_diff_density_min         -1.635
_refine_diff_density_rms         0.147
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.999
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1319
_refine_ls_number_reflns         28286
_refine_ls_number_restraints     27
_refine_ls_restrained_S_all      16.466
_refine_ls_R_factor_all          0.0972
_refine_ls_R_factor_gt           0.0518
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0786P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1475
_refine_ls_wR_factor_ref         0.1573
_reflns_number_gt                16608
_reflns_number_total             28286
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om100702x_si_002.cif
_cod_data_source_block           3
_cod_database_code               4066905