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Title: Reversible structural rearrangement of π-expanded cyclooctatetraene upon two-fold reduction with alkali metals
The chemical reduction of a π-expanded COT derivative, octaphenyltetrabenzocyclooctatetraene (1), with lithium or sodium metals in the presence of secondary ligands affords a new doubly-reduced product (1 TR 2− ). The X-ray diffraction study revealed a reductive core rearrangement accompanied by the formation of a single C–C bond and severe twist of the central tetraphenylene core. The reversibility of two-electron reduction and core transformation is further confirmed by NMR spectroscopy and DFT calculations.  more » « less
Award ID(s):
2003411
NSF-PAR ID:
10325300
Author(s) / Creator(s):
; ; ; ; ; ; ; ;
Date Published:
Journal Name:
Chemical Communications
Volume:
58
Issue:
19
ISSN:
1359-7345
Page Range / eLocation ID:
3206 to 3209
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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