What is the Real Steric Impact of Triphenylphosphite? Solid-State and Solution Structural Studies ofcis- andtrans-Isomers of M(CO)4[P(OPh)3]2(M = Mo and W)
Darensbourg, Donald J.; Andreatta, Jeremy R.; Stranahan, Sarah M.; Reibenspies, Joseph H.; Organometallics 26 (2007) 6832–; doi:10.1021/om700761q

data_4073964
_publ_section_title
;
 What is the Real Steric Impact of Triphenylphosphite? Solid-State and
 Solution Structural Studies ofcis- andtrans-Isomers of M(CO)4[P(OPh)3]2(M
 = Mo and W)
;
_journal_issue                   27
_journal_name_full               Organometallics
_journal_page_first              6832
_journal_paper_doi               10.1021/om700761q
_journal_volume                  26
_journal_year                    2007
_chemical_formula_sum            'C20 H15 Mo0.5 O5 P'
_chemical_formula_weight         414.26
_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                74.83
_cell_angle_beta                 75.00
_cell_angle_gamma                76.93
_cell_formula_units_Z            2
_cell_length_a                   8.484
_cell_length_b                   9.623
_cell_length_c                   12.110
_cell_measurement_reflns_used    884
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      27.41
_cell_measurement_theta_min      3.64
_cell_volume                     908.309
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      110(2)
_diffrn_measured_fraction_theta_full 0.945
_diffrn_measured_fraction_theta_max 0.945
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0309
_diffrn_reflns_av_sigmaI/netI    0.0399
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            8549
_diffrn_reflns_theta_full        27.55
_diffrn_reflns_theta_max         27.55
_diffrn_reflns_theta_min         1.78
_exptl_absorpt_coefficient_mu    0.509
_exptl_absorpt_correction_T_max  0.9701
_exptl_absorpt_correction_T_min  0.9276
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_density_diffrn    1.515
_exptl_crystal_density_meas      0
_exptl_crystal_F_000             422
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.06
_refine_diff_density_max         2.475
_refine_diff_density_min         -0.534
_refine_diff_density_rms         0.134
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.131
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     241
_refine_ls_number_reflns         3966
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.131
_refine_ls_R_factor_all          0.0554
_refine_ls_R_factor_gt           0.0475
_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^)+(0.0726P)^2^+0.0326P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1160
_refine_ls_wR_factor_ref         0.1199
_reflns_number_gt                3379
_reflns_number_total             3966
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om700761q-file007.cif
_cod_data_source_block           datam
_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        908.3
_cod_original_sg_symbol_H-M      P-1
_cod_original_formula_sum        'C20 H15 Mo0.50 O5 P'
_cod_database_code               4073964