Synthesis, molecular structures, fluxional properties and catalytic activity of a series of alkyne complexes of molybdenum(II) and tungsten(II) containing phosphite donor ligands
Baker, Paul K.; Drew, Michael G. B.; Evans, Deborah S.; Johans, Archie W.; Meehan, Margaret M.; Journal of the Chemical Society, Dalton Transactions  (1999) 2541–; doi:10.1039/a902224d

data_7027401
_publ_section_title
;
 Synthesis, molecular structures, fluxional properties and catalytic
 activity of a series of alkyne complexes of molybdenum(II) and
 tungsten(II) containing phosphite donor ligands
;
_journal_issue                   15
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              2541
_journal_paper_doi               10.1039/a902224d
_journal_year                    1999
_chemical_formula_moiety         W(CO)(MeCCMe)I2(P(OEt)3)2
_chemical_formula_sum            'C17 H36 I2 O7 P2 W'
_chemical_formula_weight         852.05
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 c 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                 93.806(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            12
_cell_length_a                   11.133(12)
_cell_length_b                   40.22(5)
_cell_length_c                   19.49(2)
_cell_measurement_reflns_used    all
_cell_measurement_temperature    293(2)
_cell_volume                     8708(17)
_computing_cell_refinement       XDS
_computing_data_collection       'XDS (Kabsch, 1991)'
_computing_data_reduction        XDS
_computing_molecular_graphics    PLATON(Spek,1994)
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measurement_device       'Marresearch Image Plate'
_diffrn_measurement_method
'95 frames at 2^o intervals, counting time 2 min.'
_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  0.0635
_diffrn_reflns_av_sigmaI/netI    0.0533
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       49
_diffrn_reflns_limit_k_min       -49
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            14473
_diffrn_reflns_theta_max         25.92
_diffrn_reflns_theta_min         3.21
_diffrn_standards_number         n/a
_exptl_absorpt_coefficient_mu    6.245
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.327
_exptl_absorpt_correction_type   'DIFABS(Stuart and Walker, 1983)'
_exptl_crystal_density_diffrn    1.949
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             4848
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.20
_refine_diff_density_max         5.831
_refine_diff_density_min         -4.509
_refine_diff_density_rms         0.288
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.05(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.300
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     493
_refine_ls_number_reflns         8573
_refine_ls_number_restraints     65
_refine_ls_restrained_S_all      1.298
_refine_ls_R_factor_all          0.1602
_refine_ls_R_factor_gt           0.1080
_refine_ls_shift/su_max          0.216
_refine_ls_shift/su_mean         0.013
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3344
_refine_ls_wR_factor_ref         0.3847
_reflns_number_gt                4972
_reflns_number_total             8573
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            902224dsup1.cif
_cod_data_source_block           11
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        8710(17)
_cod_original_sg_symbol_H-M      Cc
_cod_database_code               7027401