Twisting the arm: structural constraints in bicyclic expanded-ring N-heterocyclic carbenes.
Sampford, Katharine R.; Carden, Jamie L.; Kidner, Edward B.; Berry, Abigail; Cavell, Kingsley J.; Murphy, Damien M.; Kariuki, Benson M.; Newman, Paul D.; Dalton transactions (Cambridge, England : 2003) 48 (2019) 1850–1858; doi:10.1039/c8dt04462g

data_7048664
_publ_section_title
;
 Twisting the arm: structural constraints in bicyclic expanded-ring
 N-heterocyclic carbenes.
;
_journal_issue                   5
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
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_journal_paper_doi               10.1039/c8dt04462g
_journal_volume                  48
_journal_year                    2019
_chemical_absolute_configuration ad
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;
2018-12-10 deposited with the CCDC.
2018-12-11 downloaded from the CCDC.
;
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_refine_ls_abs_structure_details
;
 Twinning involves inversion, so Flack parameter cannot be determined
;
_refine_ls_extinction_method     none
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_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0249P)^2^+14.5929P] where P=(Fo^2^+2Fc^2^)/3'
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_cod_data_source_file            c8dt04462g2.cif
_cod_data_source_block           kjc1228
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Empirical' changed to
'empirical' according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 

 Adding full bibliography for 7048655--7048669.cif.
;
_cod_original_cell_volume        2581.20(11)
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_shelx_res_checksum              23466