Cubane-forming cyclic dienes that exhibit orthogonal reactivities in the solid state.
Li, Changan; Sinnwell, Michael A.; Swenson, Dale C.; MacGillivray, Leonard R.; Chemical communications (Cambridge, England) 57 (2021) 6725–6727; doi:10.1039/d1cc02725e

data_7128452
_publ_section_title
;
 Cubane-forming cyclic dienes that exhibit orthogonal reactivities in the
 solid state.
;
_journal_issue                   55
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              6725
_journal_page_last               6727
_journal_paper_doi               10.1039/d1cc02725e
_journal_volume                  57
_journal_year                    2021
_chemical_formula_moiety         'C7 H4 O6, C4 H8 O'
_chemical_formula_sum            'C11 H12 O7'
_chemical_formula_weight         256.21
_chemical_name_common            CA\^A.THF
_chemical_name_systematic
'(4-Oxo-4H-pyran-2,6-dicarboxylic acid)solvate'
_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             2021-05-03
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2021-05-08 deposited with the CCDC.	2021-06-07 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 111.621(5)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.6261(10)
_cell_length_b                   11.4586(11)
_cell_length_c                   11.0733(11)
_cell_measurement_reflns_used    42194
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      26.27
_cell_measurement_theta_min      2.2755
_cell_volume                     1135.5(2)
_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_temperature      150.15
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker D8 Venture Duo'
_diffrn_measurement_method       'CCD phi and omega scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0281
_diffrn_reflns_av_unetI/netI     0.0145
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            25641
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.389
_diffrn_reflns_theta_min         2.276
_exptl_absorpt_coefficient_mu    0.127
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.9649
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.0634 before and 0.0426 after correction.
The Ratio of minimum to maximum transmission is 0.9649.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.499
_exptl_crystal_description       'irregular prism-like'
_exptl_crystal_F_000             536
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent: THF'
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.085
_exptl_crystal_size_min          0.055
_exptl_transmission_factor_max   1.0000
_exptl_transmission_factor_min   0.9649
_refine_diff_density_max         0.236
_refine_diff_density_min         -0.207
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.099
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     165
_refine_ls_number_reflns         2319
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.099
_refine_ls_R_factor_all          0.0362
_refine_ls_R_factor_gt           0.0319
_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^)+(0.0354P)^2^+0.4626P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0818
_refine_ls_wR_factor_ref         0.0847
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2058
_reflns_number_total             2319
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1cc02725e2.cif
_cod_data_source_block           mcg2154
_cod_depositor_comments
'Adding full bibliography for 7128449--7128452.cif.'
_cod_database_code               7128452
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.993
_shelx_estimated_absorpt_t_min   0.982
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All O(H) groups
2.a Secondary CH2 refined with riding coordinates:
 C11(H11A,H11B), C8(H8A,H8B), C9(H9A,H9B), C10(H10A,H10B)
2.b Aromatic/amide H refined with riding coordinates:
 C3(H3), C5(H5A)
2.c Idealised tetrahedral OH refined as rotating group:
 O5(H5), O2(H2)
;
_shelx_res_checksum              69914
_olex2_submission_special_instructions 'No special instructions were received'