Solid-state [2+2] photodimerization of eniminium salts: stereoselective syntheses of 1,3-diacetylcyclobutanes.
Yamada, Shinji; Honda, Yuka; Chemical communications (Cambridge, England) 60 (2024) 9821–9824; doi:10.1039/d4cc03691c

data_7133496
_publ_section_title
;
 Solid-state [2+2] photodimerization of eniminium salts: stereoselective
 syntheses of 1,3-diacetylcyclobutanes.
;
_journal_issue                   72
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              9821
_journal_page_last               9824
_journal_paper_doi               10.1039/d4cc03691c
_journal_volume                  60
_journal_year                    2024
_chemical_formula_moiety         'C20 H20 O2'
_chemical_formula_sum            'C20 H20 O2'
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_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_block_doi                 10.5517/ccdc.csd.cc2kl0kr
_audit_update_record
;
2024-07-14 deposited with the CCDC.	2024-08-12 downloaded from the CCDC.
;
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_cell_angle_gamma                90.0000
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_computing_cell_refinement       'RAPID AUTO'
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_computing_structure_solution    'SHELXT Version 2014/5 (Sheldrick, 2014)'
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_diffrn_measurement_device_type  'Rigaku R-AXIS RAPID'
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_diffrn_reflns_theta_min         5.071
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_exptl_crystal_colour            colorless
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_exptl_crystal_description       platelet
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_refine_ls_number_reflns         2807
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_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0633P)^2^+0.6392P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1070
_refine_ls_wR_factor_ref         0.1362
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2370
_reflns_number_total             2807
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            d4cc03691c2.cif
_cod_data_source_block           MEDMEIMINIUM-ANTI-HT-DIMER-1
_cod_depositor_comments
'Adding full bibliography for 7133484--7133496.cif.'
_cod_original_cell_volume        1596.75(6)
_cod_database_code               7133496
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