Stabilising fleeting intermediates of stilbene photocyclization with amino-borane functionalisation: the rare isolation of persistent dihydrophenanthrenes and their [1,5] H-shift isomers.
Shi, Yong-Gang; Mellerup, Soren K.; Yuan, Kang; Hu, Guo-Fei; Sauriol, Francoise; Peng, Tai; Wang, Nan; Chen, Pangkuan; Wang, Suning; Chemical science 9 (2018) 3844–3855; doi:10.1039/c8sc00560e

data_1549144
_publ_section_title
;
 Stabilising fleeting intermediates of stilbene photocyclization with
 amino-borane functionalisation: the rare isolation of persistent
 dihydrophenanthrenes and their [1,5] H-shift isomers.
;
_journal_issue                   15
_journal_name_full               'Chemical science'
_journal_page_first              3844
_journal_page_last               3855
_journal_paper_doi               10.1039/c8sc00560e
_journal_volume                  9
_journal_year                    2018
_chemical_formula_sum            'C34 H39 B N2'
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_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
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_audit_update_record
;
2018-01-14 deposited with the CCDC.
2018-03-27 downloaded from the CCDC.
;
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_diffrn_ambient_temperature      180(2)
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_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
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_diffrn_reflns_point_group_measured_fraction_full 0.998
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_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
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_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.1708
_refine_ls_R_factor_gt           0.0729
_refine_ls_shift/su_max          0.048
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0900P)^2^+0.0700P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1755
_refine_ls_wR_factor_ref         0.2124
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3083
_reflns_number_total             6298
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8sc00560e2.cif
_cod_data_source_block           syg9a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' 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 1549141--1549152.cif.
;
_cod_database_code               1549144
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.984
_shelx_estimated_absorpt_t_max   0.989
_shelx_res_checksum              20408