Structural Variations within Group 1 (Li-Cs)+(2,2,6,6-Tetramethyl-1-piperidinyloxy)-Complexes Made via Metallic Reduction of the Nitroxyl Radical
Liam Balloch; Allison M. Drummond; Pablo García-Álvarez; David V. Graham; Alan R. Kennedy; Jan Klett; Robert E. Mulvey; Charles T. O'Hara; Philip J. A. Rodger; Iain D. Rushworth; Inorganic Chemistry 48 (2009) 6934–6944; doi:10.1021/ic900609e

data_4302683
_publ_section_title
;
Structural Variations within Group 1
(Li-Cs)+(2,2,6,6-Tetramethyl-1-piperidinyloxy)-Complexes Made via
Metallic Reduction of the Nitroxyl Radical
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              6934
_journal_page_last               6944
_journal_paper_doi               10.1021/ic900609e
_journal_volume                  48
_journal_year                    2009
_chemical_formula_sum            'C52 H104 N4 Na4 O8'
_chemical_formula_weight         1005.35
_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                 103.064(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.7591(2)
_cell_length_b                   17.0417(3)
_cell_length_c                   21.7358(4)
_cell_measurement_reflns_used    45127
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      23.26
_cell_measurement_theta_min      2.04
_cell_volume                     5686.32(16)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       'phi and omega 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  0.0731
_diffrn_reflns_av_sigmaI/netI    0.0757
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            15937
_diffrn_reflns_theta_full        23.23
_diffrn_reflns_theta_max         23.23
_diffrn_reflns_theta_min         2.91
_exptl_absorpt_coefficient_mu    0.103
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.174
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       lump
_exptl_crystal_F_000             2208
_exptl_crystal_size_max          .3
_exptl_crystal_size_mid          .3
_exptl_crystal_size_min          .25
_refine_diff_density_max         0.326
_refine_diff_density_min         -0.299
_refine_diff_density_rms         0.068
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.351
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     629
_refine_ls_number_reflns         8126
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.351
_refine_ls_R_factor_all          0.1474
_refine_ls_R_factor_gt           0.1027
_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^)+(0.0307P)^2^+21.4874P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1992
_refine_ls_wR_factor_ref         0.2173
_reflns_number_gt                6106
_reflns_number_total             8126
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ic900609e_si_001_3.cif
_cod_data_source_block           gre44
_cod_database_code               4302683