Chemically recyclable fluorescent polyesters via the ring-opening copolymerization of epoxides and anhydrides
Young, Taylor B.; Guppy, Owaen G.; Draper, Alysia J.; Whitington, Joshua M.; Kariuki, Benson M.; Paul, Alison; Eaton, Mark; Pope, Simon J. A.; Ward, Benjamin D.; Polymer Chemistry 14 (2023) 2478–2484; doi:10.1039/D3PY00209H

data_1568881
_publ_section_title
;
 Chemically recyclable fluorescent polyesters via the ring-opening
 copolymerization of epoxides and anhydrides
;
_journal_issue                   20
_journal_name_full               'Polymer Chemistry'
_journal_page_first              2478
_journal_page_last               2484
_journal_paper_doi               10.1039/D3PY00209H
_journal_volume                  14
_journal_year                    2023
_chemical_formula_sum            'C20 H20 N2 O3'
_chemical_formula_weight         336.38
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2021-07-07 deposited with the CCDC.	2023-04-03 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
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_cell_length_b                   7.6564(15)
_cell_length_c                   32.715(7)
_cell_measurement_reflns_used    16425
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      31.1670
_cell_measurement_theta_min      2.0170
_cell_volume                     3201.6(12)
_computing_cell_refinement       'CrysAlisPro 1.171.41.89a (Rigaku OD, 2020)'
_computing_data_collection       'CrysAlisPro 1.171.41.89a (Rigaku OD, 2020)'
_computing_data_reduction        'CrysAlisPro 1.171.41.89a (Rigaku OD, 2020)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 10.0000
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.888
_diffrn_measurement_device_type  'XtaLAB AFC12 (RCD3): Kappa single'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0280
_diffrn_reflns_av_unetI/netI     0.0167
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.888
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       47
_diffrn_reflns_limit_l_min       -47
_diffrn_reflns_number            43523
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.888
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         32.669
_diffrn_reflns_theta_min         2.022
_diffrn_source                   'Rotating-anode X-ray tube'
_exptl_absorpt_coefficient_mu    0.095
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.82305
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.41.89a (Rigaku Oxford Diffraction, 2020)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.396
_exptl_crystal_description       plate
_exptl_crystal_F_000             1424
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: DCM, petroleum ether'
_exptl_crystal_size_max          0.180
_exptl_crystal_size_mid          0.080
_exptl_crystal_size_min          0.020
_refine_diff_density_max         0.485
_refine_diff_density_min         -0.423
_refine_diff_density_rms         0.066
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.187
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     263
_refine_ls_number_reflns         5218
_refine_ls_number_restraints     138
_refine_ls_restrained_S_all      1.181
_refine_ls_R_factor_all          0.0870
_refine_ls_R_factor_gt           0.0764
_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^)+(0.0851P)^2^+2.8228P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2052
_refine_ls_wR_factor_ref         0.2115
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4563
_reflns_number_total             5218
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3py00209h2.cif
_cod_data_source_block           1
_cod_depositor_comments
'Adding full bibliography for 1568881--1568883.cif.'
_cod_original_cell_volume        3201.5(11)
_cod_database_code               1568881
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.983
_shelx_estimated_absorpt_t_max   0.998
_shelx_res_checksum              52758