Photorearrangement of dihetarylethenes as a tool for the benzannulation of heterocycles.
Lvov, Andrey G.; Kavun, Alexey M.; Kachala, Vadim V.; Lyssenko, Konstantin A.; Shirinian, Valerii Z.; Organic & biomolecular chemistry 17 (2019) 4990–5000; doi:10.1039/c9ob00690g

data_7156766
_publ_section_title
;
 Photorearrangement of dihetarylethenes as a tool for the benzannulation
 of heterocycles.
;
_journal_issue                   20
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              4990
_journal_page_last               5000
_journal_paper_doi               10.1039/c9ob00690g
_journal_volume                  17
_journal_year                    2019
_chemical_formula_moiety         '2(C23 H18 N2 O3), H2 O'
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_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
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_audit_update_record
;
2018-08-01 deposited with the CCDC.    2019-04-01 downloaded from the CCDC.
;
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_exptl_crystal_description       plate
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_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
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_refine_ls_R_factor_all          0.1079
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_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^)+(0.1000P)^2^+1.1000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_refine_ls_wR_factor_ref         0.2668
_reflns_Friedel_coverage         0.000
_reflns_number_gt                7068
_reflns_number_total             7754
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9ob00690g2.cif
_cod_data_source_block           R466a
_cod_depositor_comments
'Adding full bibliography for 7156762--7156768.cif.'
_cod_original_cell_volume        1796.7(10)
_cod_original_formula_sum        'C23 H19 N2 O3.50'
_cod_database_code               7156766
_shelx_estimated_absorpt_t_min   0.967
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_shelxl_version_number           2014/6
_shelx_res_checksum              11624
_shelx_hkl_checksum              43302