| Autor: |
Jenneskens LW; Organic Chemistry & Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Utrecht, Netherlands. l.w.jenneskens@uu.nl, Havenith RW, Soncini A, Fowler PW |
| Jazyk: |
angličtina |
| Zdroj: |
Physical chemistry chemical physics : PCCP [Phys Chem Chem Phys] 2011 Oct 06; Vol. 13 (37), pp. 16861-6. Date of Electronic Publication: 2011 Aug 23. |
| DOI: |
10.1039/c1cp21950b |
| Abstrakt: |
Direct evaluation of the induced π current density in [5]paracyclophane (1) shows that, despite the significant non-planarity (α = 23.2°) enforced by the pentamethylene bridge, there is only a modest (ca. 17%) reduction in the π ring current, justifying the use of shielding-cone arguments for the assignment of (1)H NMR chemical shifts of 1 and the claim that the non-planar benzene ring in 1 retains its aromaticity (on the magnetic criterion). |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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