Temperature-Dependent Reaction Rates of Quinone-Alkene Cycloaddition Reveal that Only Entropy Determines the Rate of SPOCQ Reactions
Damen, Johannes A.M.; Escorihuela, Jorge; Firet, Judith; Zuilhof, Han; Albada, Bauke; Chemical Science  (2025) –; doi:10.1039/D5SC04275E

data_1576119
_publ_section_title
;
 Temperature-Dependent Reaction Rates of Quinone-Alkene Cycloaddition
 Reveal that Only Entropy Determines the Rate of SPOCQ Reactions
;
_journal_name_full               'Chemical Science'
_journal_paper_doi               10.1039/D5SC04275E
_journal_year                    2025
_chemical_formula_moiety         'C19 H15 N O3'
_chemical_formula_sum            'C19 H15 N O3'
_chemical_formula_weight         305.32
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     dual
_audit_creation_method           SHELXL-2019/3
_audit_update_record
;
2024-08-21 deposited with the CCDC.	2025-10-22 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 97.0485(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.46003(7)
_cell_length_b                   16.26685(15)
_cell_length_c                   16.91898(17)
_cell_measurement_reflns_used    14486
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      72.8400
_cell_measurement_theta_min      5.9200
_cell_volume                     1491.34(3)
_computing_cell_refinement       'CrysAlisPro 1.171.42.49 (Rigaku OD, 2022)'
_computing_data_collection       'CrysAlisPro 1.171.42.49 (Rigaku OD, 2022)'
_computing_data_reduction        'CrysAlisPro 1.171.42.49 (Rigaku OD, 2022)'
_computing_publication_material
;
 'WinGX publication routines, Farrugia, 
 L. J., J. Appl. Crystallogr., 1999, 32, 837-838
;
_computing_structure_refinement  'SHELXL-2019/2 (Sheldrick, 2019)'
_computing_structure_solution
;
 SHELXT 2018/2 (Sheldrick, 2018)
 Sheldrick GM (2008) Acta Crystallogr A64:112--122 and 
 C. B. H\"ubschle, G. M. Sheldrick and B. Dittrich
 ShelXle: a Qt graphical user interface for SHELXL
 J. Appl. Cryst., 44, (2011) 1281-1284.

;
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      150.00(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 8.1150
_diffrn_detector_type            EosS2
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at home/near, EosS2'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0300
_diffrn_reflns_av_unetI/netI     0.0135
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            27447
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         72.957
_diffrn_reflns_theta_min         3.783
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Cu) X-ray Source'
_exptl_absorpt_coefficient_mu    0.752
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.87623
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.42.49 (Rigaku Oxford Diffraction, 2022)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.360
_exptl_crystal_description       tabloid
_exptl_crystal_F_000             640
_exptl_crystal_size_max          0.120
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.050
_refine_diff_density_max         0.214
_refine_diff_density_min         -0.200
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.063
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     212
_refine_ls_number_reflns         2976
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.063
_refine_ls_R_factor_all          0.0363
_refine_ls_R_factor_gt           0.0339
_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^)+(0.0369P)^2^+0.5497P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0819
_refine_ls_wR_factor_ref         0.0836
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2780
_reflns_number_total             2976
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5sc04275e2.cif
_cod_data_source_block           yd372
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               1576119
_shelx_shelxl_version_number     2019/3
_shelx_estimated_absorpt_t_min   0.915
_shelx_estimated_absorpt_t_max   0.963
_oxdiff_exptl_absorpt_empirical_full_min 0.827
_oxdiff_exptl_absorpt_empirical_full_max 1.200
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_shelx_res_checksum              74798