Imidazole-Substituted Oxoverdazyl Radical As a Mediator of Intramolecular and Intermolecular Exchange Interaction
Lucie Norel; Fabrice Pointillart; Cyrille Train; Lise-Marie Chamoreau; Kamal Boubekeur; Yves Journaux; Aaron Brieger; David J. R. Brook; Inorganic Chemistry 47 (2008) 2396–2403; doi:10.1021/ic701400b

data_4304066
_publ_contact_author
;
Cyrille Train 
;
_publ_contact_author_email       train@ccr.jussieu.fr
_publ_contact_author_fax         '00 33 1 44 27 38 41'
_publ_contact_author_phone       '00 33 1 44 27 30 59'
_publ_section_title
;
Imidazole-Substituted Oxoverdazyl Radical As a Mediator of Intramolecular
and Intermolecular Exchange Interaction
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2396
_journal_page_last               2403
_journal_paper_doi               10.1021/ic701400b
_journal_volume                  47
_journal_year                    2008
_chemical_formula_moiety         'C7 H12 N6 O'
_chemical_formula_sum            'C7 H12 N6 O'
_chemical_formula_weight         196.23
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.8564(14)
_cell_length_b                   9.1471(8)
_cell_length_c                   13.3661(16)
_cell_measurement_reflns_used    55
_cell_measurement_temperature    250(2)
_cell_measurement_theta_max      19.9
_cell_measurement_theta_min      3.8
_cell_volume                     960.5(2)
_computing_cell_refinement       'Dirax/lsq (Duisenberg & Schreurs, 1989-2000)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction        'EvalCCD (Duisenberg & Schreurs 1990-2000)'
_computing_molecular_graphics    'DIAMOND (Brandenburg, 1999)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      250(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_diffrn_radiation_monochromator  'horizonally 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  0.0583
_diffrn_reflns_av_sigmaI/netI    0.0351
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            16181
_diffrn_reflns_theta_full        30.03
_diffrn_reflns_theta_max         30.03
_diffrn_reflns_theta_min         3.05
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_T_max  0.989
_exptl_absorpt_correction_T_min  0.732
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
R.H. Blessing, Acta Cryst. (1995), A51, 33-38
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.357
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             416
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.190
_refine_diff_density_min         -0.176
_refine_diff_density_rms         0.042
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     136
_refine_ls_number_reflns         1455
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0669
_refine_ls_R_factor_gt           0.0402
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0596P)^2^+0.0295P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0912
_refine_ls_wR_factor_ref         0.1010
_reflns_number_gt                1089
_reflns_number_total             1455
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic701400b-file003.cif
_cod_data_source_block           ln109
_cod_database_code               4304066