Advanced

Formation of extended covalently bonded Ni porphyrin networks on the Au(111) surface

Krasnikov, Sergey A.; Doyle, Catherine M.; Sergeeva, Natalia N.; Preobrajenski, Alexei LU ; Vinogradov, Nikolay LU ; Sergeeva, Yulia N.; Zakharov, Alexei LU ; Senge, Mathias O. and Cafolla, Attilio A. (2011) In Nano Reseach 4(4). p.376-384
Abstract
The growth and ordering of {5,10,15,20-tetrakis(4-bromophenyl)porphyrinato}nickel(II) (NiTBrPP) molecules on the Au(111) surface have been investigated using scanning tunnelling microscopy, X-ray absorption, core-level photoemission, and microbeam low-energy electron diffraction. When deposited onto the substrate at room temperature, the NiTBrPP forms a well-ordered close-packed molecular layer in which the molecules have a flat orientation with the porphyrin macrocycle plane lying parallel to the substrate. Annealing of the NiTBrPP layer on the Au(111) surface at 525 K leads to dissociation of bromine from the porphyrin followed by the formation of covalent bonds between the phenyl substituents of the porphyrin. This results in the... (More)
The growth and ordering of {5,10,15,20-tetrakis(4-bromophenyl)porphyrinato}nickel(II) (NiTBrPP) molecules on the Au(111) surface have been investigated using scanning tunnelling microscopy, X-ray absorption, core-level photoemission, and microbeam low-energy electron diffraction. When deposited onto the substrate at room temperature, the NiTBrPP forms a well-ordered close-packed molecular layer in which the molecules have a flat orientation with the porphyrin macrocycle plane lying parallel to the substrate. Annealing of the NiTBrPP layer on the Au(111) surface at 525 K leads to dissociation of bromine from the porphyrin followed by the formation of covalent bonds between the phenyl substituents of the porphyrin. This results in the formation of continuous covalently bonded porphyrin networks, which are stable up to 800 K and can be recovered after exposure to ambient conditions. By controlling the experimental conditions, a robust, extended porphyrin network can be prepared on the Au(111) surface that has many potential applications such as protective coatings, in sensing or as a host structure for molecules and clusters. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Porphyrins, covalently bonded networks, scanning tunnelling microscopy, X-ray photoemission spectroscopy, near-edge X-ray absorption fine, structure, Au(111)
in
Nano Reseach
volume
4
issue
4
pages
376 - 384
publisher
Springer
external identifiers
  • wos:000289529200006
  • scopus:79954678391
ISSN
1998-0124
DOI
10.1007/s12274-010-0092-7
language
English
LU publication?
yes
id
24c10556-bcda-4a46-aeb1-22177741c37f (old id 1965524)
date added to LUP
2011-05-23 08:22:46
date last changed
2017-06-25 03:16:04
@article{24c10556-bcda-4a46-aeb1-22177741c37f,
  abstract     = {The growth and ordering of {5,10,15,20-tetrakis(4-bromophenyl)porphyrinato}nickel(II) (NiTBrPP) molecules on the Au(111) surface have been investigated using scanning tunnelling microscopy, X-ray absorption, core-level photoemission, and microbeam low-energy electron diffraction. When deposited onto the substrate at room temperature, the NiTBrPP forms a well-ordered close-packed molecular layer in which the molecules have a flat orientation with the porphyrin macrocycle plane lying parallel to the substrate. Annealing of the NiTBrPP layer on the Au(111) surface at 525 K leads to dissociation of bromine from the porphyrin followed by the formation of covalent bonds between the phenyl substituents of the porphyrin. This results in the formation of continuous covalently bonded porphyrin networks, which are stable up to 800 K and can be recovered after exposure to ambient conditions. By controlling the experimental conditions, a robust, extended porphyrin network can be prepared on the Au(111) surface that has many potential applications such as protective coatings, in sensing or as a host structure for molecules and clusters.},
  author       = {Krasnikov, Sergey A. and Doyle, Catherine M. and Sergeeva, Natalia N. and Preobrajenski, Alexei and Vinogradov, Nikolay and Sergeeva, Yulia N. and Zakharov, Alexei and Senge, Mathias O. and Cafolla, Attilio A.},
  issn         = {1998-0124},
  keyword      = {Porphyrins,covalently bonded networks,scanning tunnelling microscopy,X-ray photoemission spectroscopy,near-edge X-ray absorption fine,structure,Au(111)},
  language     = {eng},
  number       = {4},
  pages        = {376--384},
  publisher    = {Springer},
  series       = {Nano Reseach},
  title        = {Formation of extended covalently bonded Ni porphyrin networks on the Au(111) surface},
  url          = {http://dx.doi.org/10.1007/s12274-010-0092-7},
  volume       = {4},
  year         = {2011},
}