Luminescent Hydrido-Carbonyl Clusters of Rhenium Containing Bridging 1,2-Diazine Ligands
Panigati, Monica; Donghi, Daniela; D'Alfonso, Giuseppe; Mercandelli, Pierluigi; Sironi, Angelo; D'Alfonso, Laura; Inorganic Chemistry 45 (2006) 10909–10921; doi:10.1021/ic061467z

data_4333130
_publ_section_title
;
 Luminescent Hydrido-Carbonyl Clusters of Rhenium Containing Bridging
 1,2-Diazine Ligands
;
_journal_issue                   26
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              10909
_journal_page_last               10921
_journal_paper_doi               10.1021/ic061467z
_journal_volume                  45
_journal_year                    2006
_chemical_formula_moiety         'C10 H6 N2 O6 Re2'
_chemical_formula_sum            'C10 H6 N2 O6 Re2'
_chemical_formula_weight         622.56
_chemical_name_systematic
;
hexacarbonyldi-\m-hydro(\m-pyridazine-\kN1:\kN2)dirhenium
;
_space_group_IT_number           11
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      11
_symmetry_space_group_name_Hall  '-P 2yb'
_symmetry_space_group_name_H-M   'P 1 21/m 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 98.94(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   5.675(2)
_cell_length_b                   15.810(6)
_cell_length_c                   7.963(3)
_cell_measurement_reflns_used    3321
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      2.6
_cell_volume                     705.8(5)
_computing_structure_refinement
;
Sheldrick, G. M. (1997). SHELX97. Universit\"at G\"ottingen, Germany.
;
_computing_structure_solution
;
SIR97: Altomare, A., Burla, M. C., Camalli, M., Cascarano, G. L.,
Giacovazzo, C., Guagliardi, A., Moliterni, A. G. G., Polidori, G. &
Spagna, R. (1999). J. Appl. Cryst. 32, 115-119.
;
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_details
;
More than a hemisphere of reciprocal space was scanned by 0.3\% \w steps,
collecting 1650 frames each at 60 s exposure keeping the detector at 3.0 cm
from the sample. Intensity decay was monitored by recollecting the initial 50
frames at the end of data collection and analysing the duplicate reflections.
;
_diffrn_measurement_device_type  'Brucker SMART'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0438
_diffrn_reflns_av_sigmaI/netI    0.0114
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            3948
_diffrn_reflns_theta_full        25.0
_diffrn_reflns_theta_max         25.0
_diffrn_reflns_theta_min         2.6
_diffrn_standards_decay_%        8
_exptl_absorpt_coefficient_mu    17.159
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.785
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
;
Sheldrick, G. M. (1996). SADABS. Universit\"at G\"ottingen, Germany.
Reflections employed for parameter determination: 4976
Maximum odd and even orders for spherical harmonics: 3 and 6
Effective data to parameter ratio: 2.6
;
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    2.930
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             556
_exptl_crystal_preparation
;
Crystals were obtained by slow diffusion of n-hexane vapors
in a dichloromethane solution at 248 K.
;
_refine_diff_density_max         0.514
_refine_diff_density_min         -0.681
_refine_diff_density_rms         0.129
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.243
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     92
_refine_ls_number_reflns         1292
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0274
_refine_ls_R_factor_gt           0.0244
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
w=1/[\s^2^(Fo^2^)+(0.02P)^2^+4P] where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0578
_refine_ls_wR_factor_ref         0.0609
_reflns_number_gt                1212
_reflns_number_total             1292
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ic061467zsup1.cif
_cod_data_source_block           dimerPYDZ(3a)
_cod_original_sg_symbol_H-M      'P 21/m'
_cod_database_code               4333130