Synthesis, characterisation and molecular structure of Re(III) 2-oxacyclocarbenes stabilised by a benzoyldiazenido ligand.
Marvelli, Lorenza; Mantovani, Nicoletta; Marchi, Andrea; Rossi, Roberto; Brugnati, Michele; Peruzzini, Maurizio; Barbaro, Pierluigi; de los Rios, Isaac; Bertolasi, Valerio; Dalton transactions (Cambridge, England : 2003)  (2004) 713–722; doi:10.1039/b315693a

data_7013869
_publ_section_title
;
 Synthesis, characterisation and molecular structure of Re(III)
 2-oxacyclocarbenes stabilised by a benzoyldiazenido ligand.
;
_journal_issue                   5
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              713
_journal_page_last               722
_journal_paper_doi               10.1039/b315693a
_journal_year                    2004
_chemical_formula_moiety         'C48 H43 Cl2 N2 O2 P2 Re, C H2 Cl2'
_chemical_formula_sum            'C49 H45 Cl4 N2 O2 P2 Re'
_chemical_formula_weight         1083.81
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 101.176(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.5556(2)
_cell_length_b                   25.2193(6)
_cell_length_c                   16.0769(2)
_cell_measurement_reflns_used    31970
_cell_measurement_temperature    295
_cell_measurement_theta_max      28.00
_cell_measurement_theta_min      2.40
_cell_volume                     4596.35(15)
_computing_cell_refinement       'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'Kappa CCD server software (Nonius, 1997)'
_computing_data_reduction        'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'ORTEP II (Johnson, 1976)'
_computing_publication_material
;
SHELXL-97 (Sheldrick, 1997), PARST (Nardelli, 1995)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      295
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       '\f scans and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.067
_diffrn_reflns_av_sigmaI/netI    0.0451
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       33
_diffrn_reflns_limit_k_min       -33
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            31970
_diffrn_reflns_theta_full        28.00
_diffrn_reflns_theta_max         28.00
_diffrn_reflns_theta_min         2.40
_exptl_absorpt_coefficient_mu    2.987
_exptl_absorpt_correction_T_max  0.678
_exptl_absorpt_correction_T_min  0.605
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
;
SORTAV (R.H. Blessing, Acta Crystallogr., 1995, A51, 33)
;
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.566
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2168
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.14
_refine_diff_density_max         1.545
_refine_diff_density_min         -1.172
_refine_diff_density_rms         0.110
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.158
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     539
_refine_ls_number_reflns         10977
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.158
_refine_ls_R_factor_all          0.0635
_refine_ls_R_factor_gt           0.0464
_refine_ls_shift/su_max          0.030
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0000P)^2^+18.8030P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0900
_refine_ls_wR_factor_ref         0.0981
_reflns_number_gt                9096
_reflns_number_total             10977
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            b315693a.txt
_cod_data_source_block           (4)
_cod_original_cell_volume        4596.5(2)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7013869