J 2014

Potential energy surface and binding energy in the presence of an external electric field: modulation of anion–pi interactions for graphene-based receptors

FOROUTANNEJAD, Cina and Radek MAREK

Basic information

Original name

Potential energy surface and binding energy in the presence of an external electric field: modulation of anion–pi interactions for graphene-based receptors

Authors

FOROUTANNEJAD, Cina (364 Islamic Republic of Iran, belonging to the institution) and Radek MAREK (203 Czech Republic, guarantor, belonging to the institution)

Edition

Physical Chemistry Chemical Physics, Cambridge, Royal Society of Chemistry, 2014, 1463-9076

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10403 Physical chemistry

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 4.493

RIV identification code

RIV/00216224:14310/14:00074895

Organization unit

Faculty of Science

UT WoS

000333201900001

Keywords in English

Electric field; binding enery; potential energy surface; anion_pi; graphene

Tags

International impact, Reviewed
Změněno: 7/11/2014 17:31, prof. RNDr. Radek Marek, Ph.D.

Abstract

V originále

Measuring the binding energy or scanning the potential energy surface (PES) of the charged molecular systems in the presence of an external electric field (EEF) requires a careful evaluation of the origin-dependency of the energy of the system and references. Scanning the PES for charged or purely ionic systems for obtaining the intrinsic energy barriers needs careful analysis of the electric work applied on ions by the EEF. The binding energy in the presence of an EEF is different from that in the absence of an electric field as the binding energy is an anisotropic characteristic which depends on the orientation of molecules with respect to the EEF. In this contribution we discuss various aspects of the PES and the concept of binding energy in the presence of an EEF. In addition, we demonstrate that the anion–pi bonding properties can be modulated by applying a uniform EEF, which has a more pronounced effect on the larger, more polarizable pi-systems. An analogous behavior is presumed for cation–pi systems. We predict that understanding the phenomenon introduced in the present account has enormous potential, for example, for separating charged species on the surface of polarizable two-dimensional materials such as graphene or the surface of carbon nanotubes, in desalination of water.

Links

ED1.1.00/02.0068, research and development project
Name: CEITEC - central european institute of technology
EE2.3.30.0009, research and development project
Name: Zaměstnáním čerstvých absolventů doktorského studia k vědecké excelenci

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