Spherical aromaticity
WebSpherical aromaticity is aromaticity that occurs in fullerenes. In 2000, Andreas Hirsch and coworkers in Erlangen, Germany, formulated a rule to determine when a fullerene would … WebNov 1, 2005 · Recent studies on spherical or three dimensional (3D) aromaticity uses fullerenes, polyhedral boranes and related structures as its prototype. Resemblance of fullerene to a sphere suggests...
Spherical aromaticity
Did you know?
WebHyperconjugation. In organic chemistry, hyperconjugation ( σ-conjugation or no-bond resonance) refers to the delocalization of electrons with the participation of bonds of primarily σ-character. Usually, hyperconjugation involves the interaction of the electrons in a sigma (σ) orbital (e.g. C–H or C–C) with an adjacent unpopulated non ...
WebAug 17, 2005 · Spherical Aromaticity: Recent Work on Fullerenes, Polyhedral Boranes, and Related Structures Zhongfang Chen R. Bruce King View Author Information Cite … WebApr 1, 2024 · Intricate multi-center bonding patterns delineate the multiple local σ-aromatic characters of the title cluster displaying explicit spherical aromaticity. Graphical abstract A disubstituted hetero-ten-vertex cluster [(CrGe 9 )Cr 2 (CO) 13 ] …
WebApr 13, 2024 · Spherical trihedral metallo-borospherenes. 02 June 2024 ... (n = 0, 1, 2) Stuffed mononuclear and binuclear borafullerene and borospherene nanoclusters with spherical aromaticity. 17 November 2024 WebThe characteristic features of molecules like polyhedra and fullerenes, which follow the 2(N+1) 2 rule of spherical aromaticity, can be related to energetically stable closed-shell …
In organic chemistry, spherical aromaticity is formally used to describe an unusually stable nature of some spherical compounds such as fullerenes, polyhedral boranes. In 2000, Andreas Hirsch and coworkers in Erlangen, Germany, formulated a rule to determine when a fullerene would be aromatic. They found that if … See more • Fullerene chemistry • Carborane • Boranes See more • Spherical Aromaticity: Recent Work on Fullerenes, Polyhedral Boranes, and Related Structures See more
WebAromaticity Modern Computational Methods and Applications 1st Edition - May 14, 2024 Write a review Editor: Israel Fernandez eBook ISBN: 9780128227435 Paperback ISBN: 9780128227237 Purchase options Select country/region eBook$220.00 DRM-free (EPub, PDF, Mobi) eBook Format Help Print - Paperback$220.00 Available Add to cart french broad chocolate toursWebJan 20, 2024 · One notable example is Hirsch’s 2(n + 1) 2 spherical aromaticity rule in fullerenes 19,20, which was subsequently extended to some other metal- and boron-based clusters 21. french broad community churchWebC 60 does not have “superaromatic” or even aromatic character, but is a spherically π antiaromatic and enormously strained species. This explains its very large and positive heat of formation (610 ± 30 kcal mol −1 ). The π electron character of C 60 was analyzed by dissected nucleus independent chemical shifts (NICS). fastest running back in nfl 2015