Isolated heterometallic Cr7Ni rings grafted on Au(111) surface

Valdis Corradini, Roberto Biagi, Umberto Del Pennino, Valentina De Renzi, Alessandro Gambardella, Marco Affronte, Christopher A. Muryn, Grigore A. Timco, Richard E P Winpenny

Research output: Contribution to journalArticle

Abstract

A study of the deposition of heterometallic antiferromagnetically coupled rings onto gold surfaces is reported. Two new {Cr7Ni} rings, [NH 2 nPr2][Cr7NiF8(3-tpc) 16] (1) (where 3-tpc = 3-thiophenecarboxylate) and [ nBuNH2CH2CH2SH] [Cr 7NiF8(O2CtBu)16] (2) have been made and structurally characterized. They have been deposited from the liquid phase on Au(111) and the adsorbed molecules compared by means of scanning tunneling microscopy (STM) and X-ray photoemission spectroscopy (XPS). In both cases a two-dimensional distribution of individually accessible {Cr 7Ni} heterometallic rings on the gold surface has been obtained, exploiting the direct grafting of sulfur-functionalized clusters. There is a competition between the chemisorption of the {Cr7Ni} clusters and a thiolic self-assembled monolayer (SAM) formed by free ligands. In 2, the presence of a single sulfur ligand should force the molecule to graft with the ring axis normal to the surface. The cluster stability in the STM images and the S-2p energy positions demonstrate, for both functionalizations, the strength of the grafting with the gold surface.

Original languageEnglish
Pages (from-to)4937-4943
Number of pages7
JournalInorganic Chemistry
Volume46
Issue number12
DOIs
Publication statusPublished - Jun 11 2007

Fingerprint

Gold
rings
Scanning tunneling microscopy
gold
Sulfur
scanning tunneling microscopy
sulfur
Ligands
ligands
Molecules
Self assembled monolayers
Photoelectron spectroscopy
Chemisorption
X ray spectroscopy
Grafts
chemisorption
molecules
liquid phases
photoelectric emission
Liquids

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

Corradini, V., Biagi, R., Del Pennino, U., De Renzi, V., Gambardella, A., Affronte, M., ... Winpenny, R. E. P. (2007). Isolated heterometallic Cr7Ni rings grafted on Au(111) surface. Inorganic Chemistry, 46(12), 4937-4943. https://doi.org/10.1021/ic0624266

Isolated heterometallic Cr7Ni rings grafted on Au(111) surface. / Corradini, Valdis; Biagi, Roberto; Del Pennino, Umberto; De Renzi, Valentina; Gambardella, Alessandro; Affronte, Marco; Muryn, Christopher A.; Timco, Grigore A.; Winpenny, Richard E P.

In: Inorganic Chemistry, Vol. 46, No. 12, 11.06.2007, p. 4937-4943.

Research output: Contribution to journalArticle

Corradini, V, Biagi, R, Del Pennino, U, De Renzi, V, Gambardella, A, Affronte, M, Muryn, CA, Timco, GA & Winpenny, REP 2007, 'Isolated heterometallic Cr7Ni rings grafted on Au(111) surface', Inorganic Chemistry, vol. 46, no. 12, pp. 4937-4943. https://doi.org/10.1021/ic0624266
Corradini V, Biagi R, Del Pennino U, De Renzi V, Gambardella A, Affronte M et al. Isolated heterometallic Cr7Ni rings grafted on Au(111) surface. Inorganic Chemistry. 2007 Jun 11;46(12):4937-4943. https://doi.org/10.1021/ic0624266
Corradini, Valdis ; Biagi, Roberto ; Del Pennino, Umberto ; De Renzi, Valentina ; Gambardella, Alessandro ; Affronte, Marco ; Muryn, Christopher A. ; Timco, Grigore A. ; Winpenny, Richard E P. / Isolated heterometallic Cr7Ni rings grafted on Au(111) surface. In: Inorganic Chemistry. 2007 ; Vol. 46, No. 12. pp. 4937-4943.
@article{7701081de48b4217a3a5c9a357c66d76,
title = "Isolated heterometallic Cr7Ni rings grafted on Au(111) surface",
abstract = "A study of the deposition of heterometallic antiferromagnetically coupled rings onto gold surfaces is reported. Two new {Cr7Ni} rings, [NH 2 nPr2][Cr7NiF8(3-tpc) 16] (1) (where 3-tpc = 3-thiophenecarboxylate) and [ nBuNH2CH2CH2SH] [Cr 7NiF8(O2CtBu)16] (2) have been made and structurally characterized. They have been deposited from the liquid phase on Au(111) and the adsorbed molecules compared by means of scanning tunneling microscopy (STM) and X-ray photoemission spectroscopy (XPS). In both cases a two-dimensional distribution of individually accessible {Cr 7Ni} heterometallic rings on the gold surface has been obtained, exploiting the direct grafting of sulfur-functionalized clusters. There is a competition between the chemisorption of the {Cr7Ni} clusters and a thiolic self-assembled monolayer (SAM) formed by free ligands. In 2, the presence of a single sulfur ligand should force the molecule to graft with the ring axis normal to the surface. The cluster stability in the STM images and the S-2p energy positions demonstrate, for both functionalizations, the strength of the grafting with the gold surface.",
author = "Valdis Corradini and Roberto Biagi and {Del Pennino}, Umberto and {De Renzi}, Valentina and Alessandro Gambardella and Marco Affronte and Muryn, {Christopher A.} and Timco, {Grigore A.} and Winpenny, {Richard E P}",
year = "2007",
month = "6",
day = "11",
doi = "10.1021/ic0624266",
language = "English",
volume = "46",
pages = "4937--4943",
journal = "Inorganic Chemistry",
issn = "0020-1669",
publisher = "American Chemical Society",
number = "12",

}

TY - JOUR

T1 - Isolated heterometallic Cr7Ni rings grafted on Au(111) surface

AU - Corradini, Valdis

AU - Biagi, Roberto

AU - Del Pennino, Umberto

AU - De Renzi, Valentina

AU - Gambardella, Alessandro

AU - Affronte, Marco

AU - Muryn, Christopher A.

AU - Timco, Grigore A.

AU - Winpenny, Richard E P

PY - 2007/6/11

Y1 - 2007/6/11

N2 - A study of the deposition of heterometallic antiferromagnetically coupled rings onto gold surfaces is reported. Two new {Cr7Ni} rings, [NH 2 nPr2][Cr7NiF8(3-tpc) 16] (1) (where 3-tpc = 3-thiophenecarboxylate) and [ nBuNH2CH2CH2SH] [Cr 7NiF8(O2CtBu)16] (2) have been made and structurally characterized. They have been deposited from the liquid phase on Au(111) and the adsorbed molecules compared by means of scanning tunneling microscopy (STM) and X-ray photoemission spectroscopy (XPS). In both cases a two-dimensional distribution of individually accessible {Cr 7Ni} heterometallic rings on the gold surface has been obtained, exploiting the direct grafting of sulfur-functionalized clusters. There is a competition between the chemisorption of the {Cr7Ni} clusters and a thiolic self-assembled monolayer (SAM) formed by free ligands. In 2, the presence of a single sulfur ligand should force the molecule to graft with the ring axis normal to the surface. The cluster stability in the STM images and the S-2p energy positions demonstrate, for both functionalizations, the strength of the grafting with the gold surface.

AB - A study of the deposition of heterometallic antiferromagnetically coupled rings onto gold surfaces is reported. Two new {Cr7Ni} rings, [NH 2 nPr2][Cr7NiF8(3-tpc) 16] (1) (where 3-tpc = 3-thiophenecarboxylate) and [ nBuNH2CH2CH2SH] [Cr 7NiF8(O2CtBu)16] (2) have been made and structurally characterized. They have been deposited from the liquid phase on Au(111) and the adsorbed molecules compared by means of scanning tunneling microscopy (STM) and X-ray photoemission spectroscopy (XPS). In both cases a two-dimensional distribution of individually accessible {Cr 7Ni} heterometallic rings on the gold surface has been obtained, exploiting the direct grafting of sulfur-functionalized clusters. There is a competition between the chemisorption of the {Cr7Ni} clusters and a thiolic self-assembled monolayer (SAM) formed by free ligands. In 2, the presence of a single sulfur ligand should force the molecule to graft with the ring axis normal to the surface. The cluster stability in the STM images and the S-2p energy positions demonstrate, for both functionalizations, the strength of the grafting with the gold surface.

UR - http://www.scopus.com/inward/record.url?scp=34347272285&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34347272285&partnerID=8YFLogxK

U2 - 10.1021/ic0624266

DO - 10.1021/ic0624266

M3 - Article

C2 - 17506551

AN - SCOPUS:34347272285

VL - 46

SP - 4937

EP - 4943

JO - Inorganic Chemistry

JF - Inorganic Chemistry

SN - 0020-1669

IS - 12

ER -