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_4132831
_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_absolute_configuration 'CHOOSE rm ad rmad syn or unk'
_chemical_formula_moiety         'C131 H48 S5.2'
_chemical_formula_sum            'C131 H48 S5.2'
_chemical_formula_weight         1788.53
_space_group_crystal_system      hexagonal
_space_group_IT_number           173
_space_group_name_Hall           'P 6c'
_space_group_name_H-M_alt        'P 63'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.0000
_cell_angle_beta                 90.0000
_cell_angle_gamma                120.0000
_cell_formula_units_Z            6
_cell_length_a                   21.2743(6)
_cell_length_b                   21.2743(6)
_cell_length_c                   39.6830(13)
_cell_measurement_reflns_used    11510
_cell_measurement_temperature    123
_cell_measurement_theta_max      17.65
_cell_measurement_theta_min      1.90
_cell_volume                     15554.1(8)
_computing_cell_refinement       'CrysAlisPro 1.171.39.45i (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.39.45i (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.39.45i (Rigaku OD, 2018)'
_computing_molecular_graphics    'CrystalStructure 4.3'
_computing_publication_material  'CrystalStructure 4.3 (Rigaku, 2018)'
_computing_structure_refinement  'SHELXL Version 2018/3 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXD Version 2013/2 (Sheldrick, 2008)'
_diffrn_ambient_temperature      123
_diffrn_detector_area_resol_mean 5.811
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Rigaku XtaLAB P200'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1285
_diffrn_reflns_av_unetI/netI     0.0611
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       35
_diffrn_reflns_limit_l_min       -35
_diffrn_reflns_number            101201
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        18.328
_diffrn_reflns_theta_max         18.328
_diffrn_reflns_theta_min         1.895
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.166
_exptl_absorpt_correction_T_max  0.992
_exptl_absorpt_correction_T_min  0.577
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.45i (Rigaku Oxford Diffraction, 2018)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.146
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             5503.20
_exptl_crystal_size_max          0.100
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.050
_refine_diff_density_max         1.24
_refine_diff_density_min         -0.46
_refine_ls_abs_structure_details
;
 Flack x determined using 1407 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.57(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.596
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     1234
_refine_ls_number_reflns         7536
_refine_ls_number_restraints     1897
_refine_ls_R_factor_all          0.2331
_refine_ls_R_factor_gt           0.1554
_refine_ls_shift/su_max          0.008
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.2000P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3771
_refine_ls_wR_factor_ref         0.4369
_reflns_Friedel_coverage         0.959
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.999
_reflns_number_gt                4087
_reflns_number_total             7536
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            ja8b06842_si_002.cif
_cod_data_source_block           24CNB
_cod_database_code               4132831
_shelx_res_checksum              60846
_shelx_hkl_checksum              69669