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  Tuning Intermolecular Interactions with Nanostructured Environments

Chattopadhyaya, M., Hermann, J., Poltavsky, I., & Tkatchenko, A. (2017). Tuning Intermolecular Interactions with Nanostructured Environments. Chemistry of Materials, 29(6), 2452-2458. doi:10.1021/acs.chemmater.6b04190.

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 Creators:
Chattopadhyaya, Mausumi1, Author           
Hermann, Jan1, Author           
Poltavsky, Igor2, Author
Tkatchenko, Alexandre1, 2, Author           
Affiliations:
1Theory, Fritz Haber Institute, Max Planck Society, ou_634547              
2Physics and Materials Science Research Unit, University of Luxembourg, Luxembourg City L-1511, Luxembourg, ou_persistent22              

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 Abstract: It is known that interactions between molecules may change in the presence of nanostructures. However, the exact mechanisms that dictate the tuning of intermolecular interactions remain largely unexplored in computational studies. Here, we employ density-functional calculations with the recently developed many-body dispersion (MBD) method to investigate intermolecular three-body interaction energies (where bodies can be molecules or nanostructures) in a set of nanocomposites. We analyze three representative complexes that display distinct behavior in their interaction profiles, and unravel the physical reasons behind the observed differences. We demonstrate that many-body van der Waals (vdW) interactions can be repulsive, attractive, or neutral with respect to a pairwise treatment of vdW dispersion interactions. Our results indicate that vdW interactions in a given complex can be tuned by suitably choosing its environment. Such tuning may lead to either stabilization or destabilization of the complex, establishing many-body interactions as a useful mechanism for designing novel nanomaterials with desired properties.

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 Dates: 2016-11-022016-10-012016-11-032017-03-28
 Publication Status: Issued
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/acs.chemmater.6b04190
 Degree: -

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Project name : VDW-CMAT - Van der Waals Interactions in Complex Materials
Grant ID : 278205
Funding program : Funding Programme 7 (FP7)
Funding organization : European Commission (EC)

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Title: Chemistry of Materials
  Abbreviation : Chem. Mater.
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Chemical Society
Pages: 7 Volume / Issue: 29 (6) Sequence Number: - Start / End Page: 2452 - 2458 Identifier: ISSN: 0897-4756
CoNE: https://pure.mpg.de/cone/journals/resource/954925561571