Synthesis and Size-Dependent Properties of [12], [16], and [24]Carbon Nanobelts.
Povie, Guillaume; Segawa, Yasutomo; Nishihara, Taishi; Miyauchi, Yuhei; Itami, Kenichiro; Journal of the American Chemical Society 140 (2018) 10054–10059; doi:10.1021/jacs.8b06842

data_4132833
_publ_section_title
;
 Synthesis and Size-Dependent Properties of [12], [16], and [24]Carbon
 Nanobelts.
;
_journal_issue                   31
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              10054
_journal_page_last               10059
_journal_paper_doi               10.1021/jacs.8b06842
_journal_volume                  140
_journal_year                    2018
_chemical_formula_sum            'C32 H16 Br8'
_chemical_formula_weight         1039.73
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 91.013(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   26.519(3)
_cell_length_b                   16.3677(14)
_cell_length_c                   7.2411(5)
_cell_measurement_reflns_used    5930
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      25.3
_cell_measurement_theta_min      3.1
_cell_volume                     3142.5(5)
_computing_cell_refinement
;
Rigaku CrystalClear-SM Expert 2.1 b29
;
_computing_data_collection
;
Rigaku CrystalClear-SM Expert 2.1 b29
;
_computing_data_reduction
;
Rigaku CrystalClear-SM Expert 2.1 b29
;
_computing_molecular_graphics    'Yadokari-XG 2009 (Wakita Nemoto et al., 2009)'
_computing_publication_material  'Yadokari-XG 2009 (Wakita,Nemoto et al., 2009)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    SIR-97
_diffrn_ambient_temperature      123
_diffrn_detector_area_resol_mean 5.8140
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type
;
Rigaku CrystalClear-SM Expert 2.1 b29
;
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_radiation_monochromator  Confocal
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0448
_diffrn_reflns_av_unetI/netI     0.0239
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.994
_diffrn_reflns_limit_h_max       31
_diffrn_reflns_limit_h_min       -31
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            20479
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        25.000
_diffrn_reflns_theta_max         25.000
_diffrn_reflns_theta_min         3.073
_diffrn_source                   'Rotating Anode'
_exptl_absorpt_coefficient_mu    10.231
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.612
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '\'Jacobson, R. (1998) Private communication\''
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    2.198
_exptl_crystal_description       Block
_exptl_crystal_F_000             1952
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.997
_refine_diff_density_min         -0.810
_refine_diff_density_rms         0.100
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.018
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     181
_refine_ls_number_reflns         2763
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.018
_refine_ls_R_factor_all          0.0257
_refine_ls_R_factor_gt           0.0207
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0371P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0549
_refine_ls_wR_factor_ref         0.0560
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2360
_reflns_number_total             2763
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja8b06842_si_002.cif
_cod_data_source_block           ZZZE19
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4132833
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.428
_shelx_estimated_absorpt_t_max   0.629
_shelx_res_checksum              78145
_shelx_hkl_checksum              40844