Synthesis and photochromic behaviour of a series of benzopyrans bearing an N-phenyl-carbazole moiety: photochromism control by the steric effect.
Frigoli, Michel; Jousselin-Oba, Tanguy; Mamada, Masashi; Marrot, Jérôme; Zangarelli, Agnese; Pannacci, Danilo; Adachi, Chihaya; Ortica, Fausto; Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 19 (2020) 1344–1355; doi:10.1039/d0pp00202j

data_1558654
_publ_section_title
;
 Synthesis and photochromic behaviour of a series of benzopyrans bearing
 an N-phenyl-carbazole moiety: photochromism control by the steric effect.
;
_journal_issue                   10
_journal_name_full
'Photochemical &amp; photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology'
_journal_page_first              1344
_journal_page_last               1355
_journal_paper_doi               10.1039/d0pp00202j
_journal_volume                  19
_journal_year                    2020
_chemical_formula_sum            'C37 H25 N O'
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_audit_creation_method           SHELXL-2018/1
_audit_update_record
;
2020-04-22 deposited with the CCDC.	2020-07-15 downloaded from the CCDC.
;
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_cell_angle_gamma                90
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_cell_volume                     5354.7(3)
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_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
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_refine_ls_extinction_method     none
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0499P)^2^+3.1442P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1323
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_reflns_number_gt                4329
_reflns_number_total             4721
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0pp00202j2.cif
_cod_data_source_block           m725b
_cod_depositor_comments          'Adding full bibliography for 1558654.cif.'
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               1558654
_shelx_shelxl_version_number     2018/1
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