Synthesis and structure of early transition metal NHC complexes
Lorber, Christian; Vendier, Laure; Dalton Transactions  (2009) 6972–; doi:10.1039/b905056f

data_7001949
_publ_section_title
;
 Synthesis and structure of early transition metal NHC complexes
;
_journal_issue                   35
_journal_name_full               'Dalton Transactions'
_journal_page_first              6972
_journal_paper_doi               10.1039/b905056f
_journal_year                    2009
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C42 H48 Cl2 N4 O1 V1'
_chemical_formula_sum            'C42 H48 Cl2 N4 O V'
_chemical_formula_weight         746.68
_chemical_name_systematic
;
?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      15
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90
_cell_angle_beta                 100.50(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   18.693(3)
_cell_length_b                   14.468(3)
_cell_length_c                   14.673(2)
_cell_measurement_reflns_used    4132
_cell_measurement_temperature    180
_cell_measurement_theta_max      32.1207
_cell_measurement_theta_min      2.8101
_cell_measurement_wavelength     0.71073
_cell_volume                     3901.9(12)
_computing_cell_refinement       'CrysAlis RED, Oxford Diffraction Ltd.'
_computing_data_collection       'CrysAlis CCD, Oxford Diffraction Ltd.'
_computing_data_reduction        'CrysAlis RED, Oxford Diffraction Ltd.'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR92 (Giacovazzo et al, 1993)'
_diffrn_ambient_temperature      180
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Oxford-Diffraction XCALIBUR'
_diffrn_measurement_method       \w-\f
_diffrn_orient_matrix_UB_11      -0.0403509417
_diffrn_orient_matrix_UB_12      0.0185357108
_diffrn_orient_matrix_UB_13      0.0385741769
_diffrn_orient_matrix_UB_21      -0.0305507179
_diffrn_orient_matrix_UB_22      -0.0433557785
_diffrn_orient_matrix_UB_23      -0.0038099333
_diffrn_orient_matrix_UB_31      0.0364956568
_diffrn_orient_matrix_UB_32      -0.0408507561
_diffrn_orient_matrix_UB_33      0.0302438706
_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  0.07
_diffrn_reflns_av_unetI/netI     0.0899
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            14141
_diffrn_reflns_theta_full        25.68
_diffrn_reflns_theta_max         25.68
_diffrn_reflns_theta_min         3.15
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.428
_exptl_absorpt_correction_T_max  0.9578
_exptl_absorpt_correction_T_min  0.921
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.31.5 (release 28-08-2006 CrysAlis171 .NET)
(compiled Aug 28 2006,13:05:05)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'light blue'
_exptl_crystal_density_diffrn    1.271
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1572
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.242
_refine_diff_density_min         -0.276
_refine_diff_density_rms         0.05
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.918
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     233
_refine_ls_number_reflns         3698
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.918
_refine_ls_R_factor_all          0.0945
_refine_ls_R_factor_gt           0.0434
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0340P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0764
_refine_ls_wR_factor_ref         0.0891
_reflns_number_gt                2300
_reflns_number_total             3698
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            b905056f.txt
_cod_data_source_block           14
_cod_database_code               7001949