Synthesis, X-ray structures, electrochemistry, magnetic properties, and theoretical studies of the novel monomeric [CoI2(dppfO2)] and polymeric chain [CoI2(μ-dppfO2)n]
Teresa Avilés; António Dinis; José Orlando Gonçalves; Vitor Félix; Maria José Calhorda; Ângela Prazeres; Michael G. B. Drew; Helena Alves; Rui T. Henriques; Vasco da Gama; Piero Zanello; Marco Fontani; J. Chem. Soc., Dalton Trans.  (2002) 4595–4602; doi:10.1039/b205942h

data_7011927
_publ_section_title
;
 Synthesis, X-ray structures, electrochemistry, magnetic properties,
 and theoretical studies of the novel monomeric [CoI2(dppfO2)] and
 polymeric chain [CoI2(\m-dppfO2)n]
;
_journal_issue                   24
_journal_name_full               'J. Chem. Soc., Dalton Trans.'
_journal_page_first              4595
_journal_page_last               4602
_journal_paper_doi               10.1039/b205942h
_journal_year                    2002
_chemical_formula_sum            'C22 H18 O6'
_chemical_formula_weight         378.36
_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                 96.1050(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.1936(2)
_cell_length_b                   7.24040(10)
_cell_length_c                   17.31980(10)
_cell_measurement_reflns_used    5866
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      2.06
_cell_volume                     1894.51(4)
_computing_cell_refinement       'Bruker AXS, SAINT'
_computing_data_collection       'Bruker AXS, SMART'
_computing_data_reduction        'Bruker AXS, SAINT'
_computing_molecular_graphics    'Bruker AXS, SHELXTL'
_computing_publication_material  'Bruker AXS, SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.974
_diffrn_measured_fraction_theta_max 0.974
_diffrn_measurement_method       '\w 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  0.0241
_diffrn_reflns_av_sigmaI/netI    0.0311
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            9897
_diffrn_reflns_theta_full        26.36
_diffrn_reflns_theta_max         26.36
_diffrn_reflns_theta_min         1.89
_exptl_absorpt_coefficient_mu    0.097
_exptl_absorpt_correction_T_max  0.9610
_exptl_absorpt_correction_T_min  0.5604
_exptl_absorpt_correction_type   'sadabs (Sheldrick, 1996)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.327
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    .
_exptl_crystal_description       'rectangular shape, cut'
_exptl_crystal_F_000             792
_exptl_crystal_size_max          0.6
_exptl_crystal_size_mid          0.6
_exptl_crystal_size_min          0.5
_refine_diff_density_max         0.259
_refine_diff_density_min         -0.227
_refine_diff_density_rms         0.034
_refine_ls_extinction_coef       0.0129(17)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     324
_refine_ls_number_reflns         3765
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.0625
_refine_ls_R_factor_gt           0.0443
_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^)+(0.0675P)^2^+0.2356P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1193
_refine_ls_wR_factor_ref         0.1296
_reflns_number_gt                2779
_reflns_number_total             3765
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b205942h.txt
_cod_data_source_block           diacid1
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7011927