Controlled polymerization of levoglucosenone-derived enynes to give bio-based polymers with tunable degradation rates and high glass transition temperatures
Jung, Eunsong; Rizzo, Antonio; Ryu, Hanseul; Cho, Minyoung; Choi, Tae-Lim; Chemical Science 16 (2025) 8435–8442; doi:10.1039/D5SC00630A

data_1574402
_publ_section_title
;
 Controlled polymerization of levoglucosenone-derived enynes to give
 bio-based polymers with tunable degradation rates and high glass
 transition temperatures
;
_journal_issue                   19
_journal_name_full               'Chemical Science'
_journal_page_first              8435
_journal_page_last               8442
_journal_paper_doi               10.1039/D5SC00630A
_journal_volume                  16
_journal_year                    2025
_chemical_formula_sum            'C23 H24 N2 O5 S2'
_chemical_formula_weight         472.56
_chemical_name_common            NTs-ONTs
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_audit_update_record
;
2025-01-21 deposited with the CCDC.	2025-03-27 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.4134(6)
_cell_length_b                   14.6866(11)
_cell_length_c                   18.7432(13)
_cell_measurement_reflns_used    9512
_cell_measurement_temperature    296.(2)
_cell_measurement_theta_max      28.0856
_cell_measurement_theta_min      2.5786
_cell_volume                     2316.0(3)
_computing_cell_refinement       'SAINT V8.40B (Bruker Nano, Inc., 2019)'
_computing_data_collection       'Bruker Instrument Service v2021.1.0.1'
_computing_data_reduction        'SAINT V8.40B (Bruker Nano, Inc., 2019)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      296.(2)
_diffrn_detector_area_resol_mean 7.3910
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0525
_diffrn_reflns_av_unetI/netI     0.0195
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            118465
_diffrn_reflns_theta_full        25.24
_diffrn_reflns_theta_max         28.31
_diffrn_reflns_theta_min         1.76
_diffrn_source_current           30.0
_diffrn_source_power             1.50
_diffrn_source_voltage           50
_exptl_absorpt_coefficient_mu    0.267
_exptl_absorpt_correction_T_max  0.97
_exptl_absorpt_correction_T_min  0.90
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 - Bruker AXS area detector scaling and absorption correction
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.355
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             992
_exptl_crystal_size_max          0.150
_exptl_crystal_size_mid          0.150
_exptl_crystal_size_min          0.100
_refine_diff_density_max         0.248
_refine_diff_density_min         -0.216
_refine_ls_abs_structure_details
;

Flack x determined using 2173 quotients [(I+)-(I-)]/[(I+)+(I-)]
(Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.000(15)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.097
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     291
_refine_ls_number_reflns         5747
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.097
_refine_ls_R_factor_all          0.0376
_refine_ls_R_factor_gt           0.0338
_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^)+(0.0459P)^2^+0.2967P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0822
_refine_ls_wR_factor_ref         0.0840
_reflns_Friedel_coverage         0.772
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.996
_reflns_number_gt                5351
_reflns_number_total             5747
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5sc00630a2.cif
_cod_data_source_block           yy179
_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/RSC/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 8170 2020-07-09 18:12:32Z antanas 

 Adding full bibliography for 1574401--1574402.cif.
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_cod_database_code               1574402
_shelx_res_checksum              52666