Detail publikace

How the Support Defines Properties of 2D Metal-Organic Frameworks: Fe-TCNQ on Graphene versus Au(111)

JAKUB, Z. TRLLOVÁ SHAHSAVAR, A. PLANER, J. HRŮZA, D. HERICH, O. PROCHÁZKA, P. ČECHAL, J.

Originální název

How the Support Defines Properties of 2D Metal-Organic Frameworks: Fe-TCNQ on Graphene versus Au(111)

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The functionality of 2D metal-organic frameworks (MOFs) is crucially dependent on the local environment of the embedded metal atoms. These atomic-scale details are best ascertained on MOFs supported on well-defined surfaces, but the interaction with the support often changes the MOF properties. We elucidate the extent of this effect by comparing the Fe-TCNQ 2D MOF on two weakly interacting supports: graphene and Au(111). We show that the Fe-TCNQ on graphene is nonplanar with iron in quasi-tetrahedral sites, but on Au(111) it is planarized by stronger van der Waals interaction. The differences in physical and electronic structures result in distinct properties of the supported 2D MOFs. The d (2 )(z )center position is shifted by 1.4 eV between Fe sites on the two supports, and dramatic differences in chemical reactivity are experimentally identified using a TCNQ probe molecule. These results outline the limitations of common on-surface approaches using metal supports and show that the intrinsic MOF properties can be partially retained on graphene.

Klíčová slova

Chemical structure; Metal organic frameworks; Scanning tunneling microscopy; Two dimensional materials; Work function

Autoři

JAKUB, Z.; TRLLOVÁ SHAHSAVAR, A.; PLANER, J.; HRŮZA, D.; HERICH, O.; PROCHÁZKA, P.; ČECHAL, J.

Vydáno

22. 1. 2024

Nakladatel

American Chemical Society

Místo

WASHINGTON

ISSN

1520-5126

Periodikum

Journal of the American Chemical Society

Ročník

146

Číslo

5

Stát

Spojené státy americké

Strany od

3471

Strany do

3482

Strany počet

12

URL

https://pubs.acs.org/doi/10.1021/jacs.3c13212

Plný text v Digitální knihovně

http://hdl.handle.net/11012/245710

BibTex

@article{BUT188698,
  author="Zdeněk {Jakub} and Azin {Trllová Shahsavar} and Jakub {Planer} and Dominik {Hrůza} and Ondrej {Herich} and Pavel {Procházka} and Jan {Čechal}",
  title="How the Support Defines Properties of 2D Metal-Organic Frameworks: Fe-TCNQ on Graphene versus Au(111)",
  journal="Journal of the American Chemical Society",
  year="2024",
  volume="146",
  number="5",
  pages="3471--3482",
  doi="10.1021/jacs.3c13212",
  issn="1520-5126",
  url="https://pubs.acs.org/doi/10.1021/jacs.3c13212"
}