'Pincer' dicarbene complexes of some early transition metals and uranium.
Pugh, David; Wright, Joseph A.; Freeman, Sandra; Danopoulos, Andreas A.; Dalton transactions (Cambridge, England : 2003)  (2006) 775–782; doi:10.1039/b512133g

data_7006592
_publ_section_title
;
 'Pincer' dicarbene complexes of some early transition metals and
 uranium.
;
_journal_issue                   6
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              775
_journal_page_last               782
_journal_paper_doi               10.1039/b512133g
_journal_year                    2006
_chemical_formula_moiety         'C39 H49 Cl2 N5 O V, 2(C4 H8 O)'
_chemical_formula_sum            'C47 H65 Cl2 N5 O3 V'
_chemical_formula_weight         869.88
_chemical_name_systematic
;
?
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 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                   10.306(3)
_cell_length_b                   32.019(11)
_cell_length_c                   13.807(5)
_cell_measurement_reflns_used    33852
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      24.11
_cell_measurement_theta_min      2.91
_cell_volume                     4556(3)
_computing_cell_refinement       'DENZO and COLLECT'
_computing_data_collection
;
DENZO (Otwinowski & Minor, 1997)
COLLECT (Hooft, 1998)
;
_computing_data_reduction        'DENZO and COLLECT'
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 1997)'
_computing_publication_material
;
PLATON (Spek, 2003)
ENCIFER (Allen, 2004)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.958
_diffrn_measured_fraction_theta_max 0.958
_diffrn_measurement_device_type  'Bruker-Nonius KappaCCD area detector'
_diffrn_measurement_method       'Phi and Omega scans to fill asymmetric unit'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Bruker-Nonius FR591 rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1892
_diffrn_reflns_av_sigmaI/netI    0.2288
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       36
_diffrn_reflns_limit_k_min       -36
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            21996
_diffrn_reflns_theta_full        24.20
_diffrn_reflns_theta_max         24.20
_diffrn_reflns_theta_min         3.21
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.380
_exptl_absorpt_correction_T_max  0.988
_exptl_absorpt_correction_T_min  0.955
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sortav (Blessing, 1997)'
_exptl_crystal_colour            'blue green'
_exptl_crystal_density_diffrn    1.268
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1852
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.301
_refine_diff_density_min         -0.325
_refine_diff_density_rms         0.064
_refine_ls_abs_structure_details
'Flack H D (1983), Acta Cryst. A39, 876-881, 2774 Friedel pairs'
_refine_ls_abs_structure_Flack   0.04(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.923
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     531
_refine_ls_number_reflns         6436
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.923
_refine_ls_R_factor_all          0.1917
_refine_ls_R_factor_gt           0.0656
_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^)+(0.0285P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0915
_refine_ls_wR_factor_ref         0.1215
_reflns_number_gt                3002
_reflns_number_total             6436
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b512133g.txt
_cod_data_source_block           1a
_cod_database_code               7006592