Asymmetric induction in quadruple-stranded europium(III) helicates and circularly polarized luminescence.
Wang, Yunlu; Zhou, Yanyan; Yao, Zhiwei; Huang, Wenru; Gao, Ting; Yan, Pengfei; Li, Hongfeng; Dalton transactions (Cambridge, England : 2003) 51 (2022) 10973–10982; doi:10.1039/d2dt01379g

data_7710526
_publ_section_title
;
 Asymmetric induction in quadruple-stranded europium(III) helicates and
 circularly polarized luminescence.
;
_journal_issue                   29
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              10973
_journal_page_last               10982
_journal_paper_doi               10.1039/d2dt01379g
_journal_volume                  51
_journal_year                    2022
_chemical_absolute_configuration adrm
_chemical_formula_sum            'C17 H22 Br N3'
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_audit_update_record
;
2021-01-13 deposited with the CCDC.	2022-06-21 downloaded from the CCDC.
;
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_computing_cell_refinement       'CrysAlis PRO (Agilent, 2011)'
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_diffrn_measured_fraction_theta_max 0.935
_diffrn_measurement_device_type  'Xcalibur, Eos'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
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_diffrn_reflns_Laue_measured_fraction_full 0.998
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_exptl_crystal_description       block
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_refine_ls_abs_structure_details
;
 Flack x determined using 1399 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.011(6)
_refine_ls_extinction_method     none
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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^)+(0.0346P)^2^+1.1322P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0685
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_reflns_number_gt                3435
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_reflns_threshold_expression     'I > 2\s(I)'
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_cod_depositor_comments
'Adding full bibliography for 7710524--7710527.cif.'
_cod_original_cell_volume        4046.5(7)
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_shelx_res_checksum              44131
_shelx_hkl_checksum              61886