A tungsten-mediated closed cycle of reactivity for the reduction of CO(2) to CO.
Jayarathne, Upul; Chandrasekaran, Perumalreddy; Jacobsen, Heiko; Mague, Joel T.; Donahue, James P.; Dalton transactions (Cambridge, England : 2003) 39 (2010) 9662–9671; doi:10.1039/c0dt00489h

data_7026528
_publ_section_title
;
 A tungsten-mediated closed cycle of reactivity for the reduction of CO(2)
 to CO.
;
_journal_issue                   40
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              9662
_journal_page_last               9671
_journal_paper_doi               10.1039/c0dt00489h
_journal_volume                  39
_journal_year                    2010
_chemical_formula_sum            'C26 H26 Cl4 P2 W'
_chemical_formula_weight         726.06
_chemical_name_common
;
Bis(diphenylmethylphosphine)tungsten(IV) tetrachloride
;
_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                66.983(4)
_cell_angle_beta                 89.510(4)
_cell_angle_gamma                63.041(4)
_cell_formula_units_Z            1
_cell_length_a                   8.860(3)
_cell_length_b                   9.491(3)
_cell_length_c                   9.765(3)
_cell_measurement_reflns_used    6029
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.2885
_cell_measurement_theta_min      2.316
_cell_volume                     659.2(4)
_computing_cell_refinement       'Bruker SAINT (Bruker-AXS 2008a)'
_computing_data_collection       'Bruker APEX2 (Bruker-AXS, 2008)'
_computing_data_reduction        'Bruker SAINT (Bruker-AXS 2008a)'
_computing_molecular_graphics    'Bruker SHELXTL(Bruker-AXS 2008b)'
_computing_publication_material  'Bruker SHELXTL(Bruker-AXS 2008b)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.934
_diffrn_measurement_device_type  'Bruker APEX-I CCD'
_diffrn_measurement_method       '\f and \w 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  0.0175
_diffrn_reflns_av_sigmaI/netI    0.0239
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            6008
_diffrn_reflns_theta_full        28.28
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         2.32
_exptl_absorpt_coefficient_mu    4.922
_exptl_absorpt_correction_T_max  0.4711
_exptl_absorpt_correction_T_min  0.3896
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick 2008a)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.829
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             354
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.400
_refine_diff_density_min         -1.356
_refine_diff_density_rms         0.114
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     203
_refine_ls_number_reflns         3047
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0152
_refine_ls_R_factor_gt           0.0152
_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^)+(0.0232P)^2^+0.2164P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0388
_refine_ls_wR_factor_ref         0.0388
_reflns_number_gt                3047
_reflns_number_total             3047
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c0dt00489h.txt
_cod_data_source_block           jpd154
_cod_original_cell_volume        659.3(3)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7026528