Controlled Polymerization of Norbornene Cycloparaphenylenes Expands Carbon Nanomaterials Design Space
Maust, Ruth L.; Li, Penghao; Shao, Baihao; Zeitler, Sarah M.; Sun, Peiguan B.; Reid, Harrison W.; Zakharov, Lev N.; Golder, Matthew R.; Jasti, Ramesh; ACS Central Science  (2021) –; doi:10.1021/acscentsci.1c00345

data_4518713
_publ_section_title
;
 Controlled Polymerization of Norbornene Cycloparaphenylenes Expands
 Carbon Nanomaterials Design Space
;
_journal_name_full               'ACS Central Science'
_journal_paper_doi               10.1021/acscentsci.1c00345
_journal_year                    2021
_chemical_formula_sum            'C53 H36'
_chemical_formula_weight         672.82
_space_group_crystal_system      trigonal
_space_group_IT_number           161
_space_group_name_Hall           'R 3 -2"c'
_space_group_name_H-M_alt        'R 3 c :H'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            18
_cell_length_a                   16.3451(6)
_cell_length_b                   16.3451(6)
_cell_length_c                   80.409(3)
_cell_measurement_reflns_used    4174
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      45.87
_cell_measurement_theta_min      3.30
_cell_volume                     18604.2(12)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker Apex II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0644
_diffrn_reflns_av_unetI/netI     0.0492
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       76
_diffrn_reflns_limit_l_min       -78
_diffrn_reflns_number            24620
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        49.091
_diffrn_reflns_theta_max         49.091
_diffrn_reflns_theta_min         3.298
_diffrn_source                   'Incoatec I\mS'
_exptl_absorpt_coefficient_mu    0.463
_exptl_absorpt_correction_T_max  0.7497
_exptl_absorpt_correction_T_min  0.6511
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.081
_exptl_crystal_description       plate
_exptl_crystal_F_000             6372
_exptl_crystal_size_max          0.090
_exptl_crystal_size_mid          0.080
_exptl_crystal_size_min          0.020
_refine_diff_density_max         0.122
_refine_diff_density_min         -0.145
_refine_diff_density_rms         0.028
_refine_ls_abs_structure_details
;
 Flack x determined using 1183 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.6(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.930
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     491
_refine_ls_number_reflns         4056
_refine_ls_number_restraints     497
_refine_ls_restrained_S_all      0.945
_refine_ls_R_factor_all          0.0631
_refine_ls_R_factor_gt           0.0453
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0712P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1071
_refine_ls_wR_factor_ref         0.1148
_reflns_Friedel_coverage         0.984
_reflns_Friedel_fraction_full    0.988
_reflns_Friedel_fraction_max     0.988
_reflns_number_gt                3016
_reflns_number_total             4056
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            oc1c00345_si_003.cif
_cod_data_source_block           cu_jasti116_0m_sqd
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_absorpt_correction_type' value 'Multi-scan' was
changed to 'multi-scan' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 7556 2019-12-06 15:28:31Z antanas 
;
_cod_original_cell_volume        18604.1(16)
_cod_database_code               4518713
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.959
_shelx_estimated_absorpt_t_max   0.991
_shelx_res_checksum              93046
_shelx_hkl_checksum              14625