Diels–Alder reactions between cyclopentadiene analogs and benzoquinone in water and their application in the synthesis of polycyclic cage compounds
Shi, Yijun; Liu, Xuejing; Han, Ying; Yan, Peng; Bie, Fusheng; Cao, Han; RSC Advances 10 (2020) 739–745; doi:10.1039/C9RA09745G

data_7239722
_publ_section_title
;
 Diels--Alder reactions between cyclopentadiene analogs and benzoquinone
 in water and their application in the synthesis of polycyclic cage
 compounds
;
_journal_issue                   2
_journal_name_full               'RSC Advances'
_journal_page_first              739
_journal_page_last               745
_journal_paper_doi               10.1039/C9RA09745G
_journal_volume                  10
_journal_year                    2020
_chemical_formula_moiety         'C26 H22 O4'
_chemical_formula_sum            'C26 H22 O4'
_chemical_formula_weight         398.43
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2018-10-16
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2019-06-26 deposited with the CCDC.	2019-12-17 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90.639(4)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   9.2415(4)
_cell_length_b                   11.3298(5)
_cell_length_c                   8.8293(4)
_cell_measurement_reflns_used    3177
_cell_measurement_temperature    199.98(10)
_cell_measurement_theta_max      29.2120
_cell_measurement_theta_min      4.2520
_cell_volume                     924.41(7)
_computing_cell_refinement       'CrysAlisPro 1.171.39.46e (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.39.46e (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.39.46e (Rigaku OD, 2018)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      199.98(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 10.3376
_diffrn_detector_type            AtlasS2
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w    -17.00  80.00   1.00   10.00    --    9.81  57.00-120.00   97
  2  \w    -37.00  60.00   1.00   10.00    --  -10.12  57.00  90.00   97
  3  \w    -80.00  17.00   1.00   10.00    --  -10.12 -57.00 -60.00   97
  4  \w    -33.00  -8.00   1.00   10.00    --  -10.12  38.00 -60.00   25
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at home/near, AtlasS2'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      -0.0379739000
_diffrn_orient_matrix_UB_12      0.0357950000
_diffrn_orient_matrix_UB_13      0.0521165000
_diffrn_orient_matrix_UB_21      0.0107310000
_diffrn_orient_matrix_UB_22      -0.0432971000
_diffrn_orient_matrix_UB_23      0.0570989000
_diffrn_orient_matrix_UB_31      0.0658677000
_diffrn_orient_matrix_UB_32      0.0276242000
_diffrn_orient_matrix_UB_33      0.0217705000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0345
_diffrn_reflns_av_unetI/netI     0.0329
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.988
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            7839
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.988
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.100
_diffrn_reflns_theta_min         3.597
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.096
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.90920
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.46e (Rigaku Oxford Diffraction, 2018)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'light colourless'
_exptl_crystal_density_diffrn    1.431
_exptl_crystal_description       block
_exptl_crystal_F_000             420
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.324
_refine_diff_density_min         -0.237
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     136
_refine_ls_number_reflns         2020
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0577
_refine_ls_R_factor_gt           0.0455
_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^)+(0.0505P)^2^+0.3974P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1076
_refine_ls_wR_factor_ref         0.1152
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1644
_reflns_number_total             2020
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9ra09745g2.cif
_cod_data_source_block           14
_cod_depositor_comments
'Adding full bibliography for 7239720--7239722.cif.'
_cod_database_code               7239722
_shelx_shelxl_version_number     2018/3
_chemical_oxdiff_formula         'C H'
_shelx_estimated_absorpt_t_max   0.995
_shelx_estimated_absorpt_t_min   0.985
_reflns_odcompleteness_completeness 98.70
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     27.04
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
2.a Ternary CH refined with riding coordinates:
 C9(H9), C8(H8), C10(H10), C4(H4), C5(H5), C2(H2), C3(H3)
2.b Secondary CH2 refined with riding coordinates:
 C13(H13A,H13B), C12(H12A,H12B)
;
_shelx_res_checksum              83948
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
- Detector area scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 1.225
_oxdiff_exptl_absorpt_empirical_full_min 0.800