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_4073963
_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            'C23 H15 Mo O8 P'
_chemical_formula_weight         546.26
_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                105.927(6)
_cell_angle_beta                 94.806(6)
_cell_angle_gamma                98.846(6)
_cell_formula_units_Z            2
_cell_length_a                   9.505(4)
_cell_length_b                   11.103(4)
_cell_length_c                   11.161(4)
_cell_measurement_reflns_used    999
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      27.39
_cell_measurement_theta_min      3.09
_cell_volume                     1109.3(7)
_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 0.885
_diffrn_measured_fraction_theta_max 0.885
_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  0.0248
_diffrn_reflns_av_sigmaI/netI    0.0331
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            7624
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.24
_exptl_absorpt_coefficient_mu    0.711
_exptl_absorpt_correction_T_max  0.9453
_exptl_absorpt_correction_T_min  0.9008
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            clear
_exptl_crystal_density_diffrn    1.635
_exptl_crystal_density_meas      0
_exptl_crystal_description       block
_exptl_crystal_F_000             548
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.08
_refine_diff_density_max         2.037
_refine_diff_density_min         -0.799
_refine_diff_density_rms         0.111
_refine_ls_extinction_coef       0.159(9)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     299
_refine_ls_number_reflns         3464
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0503
_refine_ls_R_factor_gt           0.0488
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0836P)^2^+2.0765P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1230
_refine_ls_wR_factor_ref         0.1250
_reflns_number_gt                3296
_reflns_number_total             3464
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om700761q-file006.cif
_cod_data_source_block           jer
_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_sg_symbol_H-M      P-1
_cod_database_code               4073963