An alternative synthesis method for [Os(NN)(CO)(2)X(2)] complexes (NN = 2,2'-bipyridine, 4,4'-dimethyl-2,2'-bipyridine; X = Cl, Br, I). Electrochemical and photochemical properties and behavior.
Jakonen, Minna; Hirva, Pipsa; Haukka, Matti; Chardon-Noblat, Sylvie; Lafolet, Frédéric; Chauvin, Jérôme; Deronzier, Alain; Dalton transactions (Cambridge, England : 2003)  (2007) 3314–3324; doi:10.1039/b704931e

data_7005731
_publ_section_title
;
 An alternative synthesis method for [Os(NN)(CO)(2)X(2)] complexes (NN
 = 2,2'-bipyridine, 4,4'-dimethyl-2,2'-bipyridine; X = Cl, Br, I).
 Electrochemical and photochemical properties and behavior.
;
_journal_issue                   30
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              3314
_journal_page_last               3324
_journal_paper_doi               10.1039/b704931e
_journal_year                    2007
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C12 H8 Br2 N2 O2 Os'
_chemical_formula_sum            'C12 H8 Br2 N2 O2 Os'
_chemical_formula_weight         562.22
_chemical_name_systematic
;
?
;
_space_group_IT_number           7
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P -2yac'
_symmetry_space_group_name_H-M   'P 1 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                 102.933(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.2462(4)
_cell_length_b                   6.9197(2)
_cell_length_c                   12.6228(4)
_cell_measurement_reflns_used    2059
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     702.00(5)
_computing_cell_refinement       'EvalCCD (Duisenberg, 1998-2003)'
_computing_data_collection       'Collect (Bruker AXS BV, 1997-2004)'
_computing_data_reduction        'EvalCCD (Duisenberg, 1998-2003)'
_computing_molecular_graphics    'Diamond v.3.1d (Brandenburg, 2006)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_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
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '\f scans and \w scans with \k offset'
_diffrn_radiation_monochromator  'horizontally mounted graphite crystal'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0312
_diffrn_reflns_av_sigmaI/netI    0.0572
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            5810
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         2.94
_exptl_absorpt_coefficient_mu    14.771
_exptl_absorpt_correction_T_max  0.3069
_exptl_absorpt_correction_T_min  0.1827
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS v.2.10 (Sheldrick, 2003)'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    2.660
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             512
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.801
_refine_diff_density_min         -0.924
_refine_diff_density_rms         0.184
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.001(12)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.922
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     172
_refine_ls_number_reflns         2972
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      0.922
_refine_ls_R_factor_all          0.0310
_refine_ls_R_factor_gt           0.0255
_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^)+(0.0000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0442
_refine_ls_wR_factor_ref         0.0457
_reflns_number_gt                2798
_reflns_number_total             2972
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b704931e.txt
_cod_data_source_block           3
_cod_original_sg_symbol_H-M      'P n'
_cod_database_code               7005731