The reactions of the anions [Cp2(CO)4Mo2(μ-PRR')]− (R, R' = H, Ph) towards chloroarsines and chlorophosphines; synthesis of complexes containing both bridging phosphido and arsenido groups
Davies, John E.; Feeder, Neil; Gray, Caspar A.; Mays, Martin J.; Woods, Anthony D.; Journal of the Chemical Society, Dalton Transactions  (2000) 1695–; doi:10.1039/b001193m

data_7009451
_publ_section_title
;
 The reactions of the anions [Cp2(CO)4Mo2(\m-PRR')]&#x2212; (R,
 R'&#x2005;=&#x2005;H, Ph) towards chloroarsines and chlorophosphines;
 synthesis of complexes containing both bridging phosphido and arsenido
 groups
;
_journal_issue                   11
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              1695
_journal_paper_doi               10.1039/b001193m
_journal_year                    2000
_chemical_formula_sum            'C16 H18 As Mo2 O4 P'
_chemical_formula_weight         572.07
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           19
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.945(4)
_cell_length_b                   21.547(6)
_cell_length_c                   8.022(5)
_cell_measurement_temperature    180(2)
_cell_volume                     1891.8(15)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      180(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.1010
_diffrn_reflns_av_sigmaI/netI    0.1909
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -1
_diffrn_reflns_number            3954
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         2.65
_exptl_absorpt_coefficient_mu    3.162
_exptl_absorpt_correction_T_max  0.9395
_exptl_absorpt_correction_T_min  0.5849
_exptl_crystal_density_diffrn    2.009
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1112
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.940
_refine_diff_density_min         -0.992
_refine_diff_density_rms         0.237
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.04(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.001
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     120
_refine_ls_number_reflns         3002
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.001
_refine_ls_R_factor_all          0.1658
_refine_ls_R_factor_gt           0.0811
_refine_ls_shift/su_max          0.008
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0716P)^2^+14.8665P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1645
_refine_ls_wR_factor_ref         0.2039
_reflns_number_gt                1717
_reflns_number_total             3002
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b001193m.txt
_cod_data_source_block           10
_cod_database_code               7009451