Synthesis and structural characterization of group 6 transition metal complexes with terminal fluoromethylidyne (CF) ligands; a DFT/NBO/NRT comparison of bonding characteristics of terminal NO, CF and CH ligands.
Huang, Hui; Hughes, Russell P.; Rheingold, Arnold L.; Dalton transactions (Cambridge, England : 2003) 40 (2011) 47–55; doi:10.1039/c0dt01006e

data_7014606
_publ_section_title
;
 Synthesis and structural characterization of group 6 transition metal
 complexes with terminal fluoromethylidyne (CF) ligands; a DFT/NBO/NRT
 comparison of bonding characteristics of terminal NO, CF and CH
 ligands.
;
_journal_issue                   1
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              47
_journal_page_last               55
_journal_paper_doi               10.1039/c0dt01006e
_journal_volume                  40
_journal_year                    2011
_chemical_formula_sum            'C8 H5 F O2 W'
_chemical_formula_weight         335.97
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 95.3340(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.8048(4)
_cell_length_b                   19.8293(12)
_cell_length_c                   7.0601(4)
_cell_measurement_reflns_used    289
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      23.23
_cell_measurement_theta_min      5.35
_cell_volume                     809.13(9)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.932
_diffrn_measurement_device_type  'CCD detector'
_diffrn_measurement_method       'phi and 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  0.0238
_diffrn_reflns_av_sigmaI/netI    0.0232
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            7596
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.21
_diffrn_reflns_theta_min         2.05
_exptl_absorpt_coefficient_mu    14.243
_exptl_absorpt_correction_T_max  0.736
_exptl_absorpt_correction_T_min  0.434
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    2.758
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             608
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.20
_refine_diff_density_max         1.620
_refine_diff_density_min         -1.999
_refine_diff_density_rms         0.152
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     109
_refine_ls_number_reflns         1866
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.0257
_refine_ls_R_factor_gt           0.0206
_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^)+(0.0080P)^2^+2.8153P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0371
_refine_ls_wR_factor_ref         0.0387
_reflns_number_gt                1658
_reflns_number_total             1866
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            C0DT01006E.TXT
_cod_data_source_block           rph438
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7014606