Isolation and Characterization of a Carbene Derivative of La@C82
Yutaka Maeda; Yoichiro Matsunaga; Takatsugu Wakahara; Satomi Takahashi; Takahiro Tsuchiya; Midori O. Ishitsuka; Tadashi Hasegawa; Takeshi Akasaka; Michael T. H. Liu; Kisato Kokura; Ernst Horn; Kenji Yoza; Tatsuhisa Kato; Shingo Okubo; Kaoru Kobayashi; Shigeru Nagase; Kazunori Yamamoto; Journal of the American Chemical Society 126 (2004) 6858–6859; doi:10.1021/ja0316115

data_4112619
_publ_section_title
;
 Isolation and Characterization of a Carbene Derivative of La@C82
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              6858
_journal_page_last               6859
_journal_paper_doi               10.1021/ja0316115
_journal_volume                  126
_journal_year                    2004
_chemical_formula_sum            'C94.5 H14 La S5'
_chemical_formula_weight         1448.27
_chemical_name_systematic
; 
 ? 
;
_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                 101.1840(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.3213(5)
_cell_length_b                   21.9299(9)
_cell_length_c                   20.9749(9)
_cell_measurement_temperature    213(2)
_cell_volume                     5108.6(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      213(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0622
_diffrn_reflns_av_sigmaI/netI    0.0769
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            31591
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         1.86
_exptl_absorpt_coefficient_mu    1.108
_exptl_absorpt_correction_T_max  0.9264
_exptl_absorpt_correction_T_min  0.8878
_exptl_crystal_density_diffrn    1.883
_exptl_crystal_F_000             2872
_exptl_crystal_size_max          0.11
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.07
_refine_diff_density_max         2.970
_refine_diff_density_min         -0.886
_refine_diff_density_rms         0.194
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.057
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     946
_refine_ls_number_reflns         10449
_refine_ls_number_restraints     1039
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.1229
_refine_ls_R_factor_gt           0.0896
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1344P)^2^+31.4810P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2269
_refine_ls_wR_factor_ref         0.2488
_reflns_number_gt                7294
_reflns_number_total             10449
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0316115si20040409_080702.cif
_cod_data_source_block           3jc1
_cod_original_formula_sum        'C94.50 H14 La S5'
_cod_database_code               4112619