Visualisation of Chemical Shielding Tensors (VIST) to Elucidate Aromaticity and Antiaromaticity.
Visualisation of Chemical Shielding Tensors (VIST) to Elucidate Aromaticity and Antiaromaticity.
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DOI:
10.1002/ejoc.202100352
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发表时间:
2021-05-07
影响因子:
2.8
通讯作者:
Glöcklhofer F
中科院分区:
文献类型:
--
作者:
Plasser F;Glöcklhofer F
Aromaticity is a central concept in chemistry, pervading areas from biochemistry to materials science. Recently, chemists also started to exploit intricate phenomena such as the interplay of local and global (anti)aromaticity or aromaticity in non‐planar systems and three dimensions. These phenomena pose new challenges in terms of our fundamental understanding and the practical visualisation of aromaticity. To overcome these challenges, a method for the visualisation of chemical shielding tensors (VIST) is developed here that allows for a 3D visualisation with quantitative information about the local variations and anisotropy of the chemical shielding. After exemplifying the method in different planar hydrocarbons, we study two non‐planar macrocycles to show the unique benefits of the VIST method for molecules with competing π‐conjugated systems and conclude with a norcorrole dimer showing clear evidence of through‐space aromaticity. We believe that the VIST method will be a highly valuable addition to the computational toolbox. A method for the visualisation of chemical shielding tensors (VIST) is developed, which provides a graphical representation of aromaticity and antiaromaticity, their local variations, and anisotropy. The method provides unique insight into fascinating phenomena such as the interplay of aromaticity and antiaromaticity in macrocycles with competing π‐conjugated systems.
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DOI:
10.1021/acs.jpca.0c09692
发表时间:
2020-12-24
期刊:
The journal of physical chemistry. A
影响因子:
--
作者:
Baryshnikov GV;Valiev RR;Nasibullin RT;Sundholm D;Kurten T;Ågren H
通讯作者:
Ågren H
影响因子:
2.9
作者:
Benkyi, Isaac;Staszewska-Krajewska, Olga;Sundholm, Dage
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Sundholm, Dage
影响因子:
15
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通讯作者:
Ottosson, Henrik
DOI:
10.1016/j.pnmrs.2010.10.003
发表时间:
2011-05
影响因子:
6.1
作者:
Facelli, Julio C.
通讯作者:
Facelli, Julio C.
DOI:
10.1021/acs.jpca.0c08926
发表时间:
2021-01-21
期刊:
The journal of physical chemistry. A
影响因子:
--
作者:
Ayub R;El Bakouri O;Smith JR;Jorner K;Ottosson H
通讯作者:
Ottosson H