Experimental and Computational Studies of Binding of Dinitrogen, Nitriles, Azides, Diazoalkanes, Pyridine, and Pyrazines to M(PR3)2(CO)3 (M = Mo, W; R = Me,iPr).
Patrick Achord; Etsuko Fujita; James T. Muckerman; Brian Scott; George C. Fortman; Manuel Temprado; Xiaochen Cai; Burjor Captain; Derek Isrow; John J. Weir; James Eric McDonough; Carl D. Hoff; Inorganic Chemistry 48 (2009) 7891–7904; doi:10.1021/ic900764e

data_4302948
_publ_section_title
;
Experimental and Computational Studies of Binding of Dinitrogen, Nitriles,
Azides, Diazoalkanes, Pyridine, and Pyrazines to M(PR3)2(CO)3 (M = Mo, W; R
= Me,iPr).
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              7891
_journal_page_last               7904
_journal_paper_doi               10.1021/ic900764e
_journal_volume                  48
_journal_year                    2009
_chemical_formula_sum            'C32 H57 N O3 P2 W'
_chemical_formula_weight         749.58
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_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                   11.8293(4)
_cell_length_b                   14.0455(4)
_cell_length_c                   21.2863(7)
_cell_measurement_reflns_used    9886
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.45
_cell_measurement_theta_min      2.25
_cell_volume                     3536.69(19)
_computing_cell_refinement       'SAINT+  V7.46A (Bruker, 2007)'
_computing_data_collection       'APEX2 v2.2-0 (Bruker, 2007)'
_computing_data_reduction        'SAINT+  V7.46A (Bruker, 2007)'
_computing_molecular_graphics    'XSHELL v4.02 (Bruker, 2000)'
_computing_publication_material  'XCIF v6.12 (Bruker, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART APEX2 CCD diffractometer'
_diffrn_measurement_method       '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  0.0244
_diffrn_reflns_av_sigmaI/netI    0.0280
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            27116
_diffrn_reflns_theta_full        28.49
_diffrn_reflns_theta_max         28.49
_diffrn_reflns_theta_min         1.74
_exptl_absorpt_coefficient_mu    3.386
_exptl_absorpt_correction_T_max  0.7282
_exptl_absorpt_correction_T_min  0.4730
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS 2007/4 Bruker)'
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.408
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             1536
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.869
_refine_diff_density_min         -0.504
_refine_diff_density_rms         0.097
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.693(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     320
_refine_ls_number_reflns         8961
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.0390
_refine_ls_R_factor_gt           0.0345
_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^)+(0.0593P)^2^+1.7452P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0906
_refine_ls_wR_factor_ref         0.0935
_reflns_number_gt                8209
_reflns_number_total             8961
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic900764e_si_002_6.cif
_cod_data_source_block           WkAdCN
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Multi-scan' changed
to 'multi-scan' 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_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_database_code               4302948