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

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Formation of extended covalently bonded Ni porphyrin networks on the Au(111) surface. / Krasnikov, Sergey A.; Doyle, Catherine M.; Sergeeva, Natalia N.; Preobrajenski, Alexei; Vinogradov, Nikolay; Sergeeva, Yulia N.; Zakharov, Alexei; Senge, Mathias O.; Cafolla, Attilio A.

I: Nano Reseach, Vol. 4, Nr. 4, 2011, s. 376-384.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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Krasnikov, SA, Doyle, CM, Sergeeva, NN, Preobrajenski, A, Vinogradov, N, Sergeeva, YN, Zakharov, A, Senge, MO & Cafolla, AA 2011, 'Formation of extended covalently bonded Ni porphyrin networks on the Au(111) surface', Nano Reseach, vol. 4, nr. 4, s. 376-384. https://doi.org/10.1007/s12274-010-0092-7

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Author

Krasnikov, Sergey A. ; Doyle, Catherine M. ; Sergeeva, Natalia N. ; Preobrajenski, Alexei ; Vinogradov, Nikolay ; Sergeeva, Yulia N. ; Zakharov, Alexei ; Senge, Mathias O. ; Cafolla, Attilio A. / Formation of extended covalently bonded Ni porphyrin networks on the Au(111) surface. I: Nano Reseach. 2011 ; Vol. 4, Nr. 4. s. 376-384.

RIS

TY - JOUR

T1 - Formation of extended covalently bonded Ni porphyrin networks on the Au(111) surface

AU - Krasnikov, Sergey A.

AU - Doyle, Catherine M.

AU - Sergeeva, Natalia N.

AU - Preobrajenski, Alexei

AU - Vinogradov, Nikolay

AU - Sergeeva, Yulia N.

AU - Zakharov, Alexei

AU - Senge, Mathias O.

AU - Cafolla, Attilio A.

PY - 2011

Y1 - 2011

N2 - 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.

AB - 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.

KW - Porphyrins

KW - covalently bonded networks

KW - scanning tunnelling microscopy

KW - X-ray photoemission spectroscopy

KW - near-edge X-ray absorption fine

KW - structure

KW - Au(111)

U2 - 10.1007/s12274-010-0092-7

DO - 10.1007/s12274-010-0092-7

M3 - Article

VL - 4

SP - 376

EP - 384

JO - Nano Reseach

T2 - Nano Reseach

JF - Nano Reseach

SN - 1998-0124

IS - 4

ER -