Ordered assembly of octa- and tetra-metallic supramolecules on graphite

Dong Lin Shieh; Kom Bei Shiu; Jong Liang Lin

doi:10.1016/j.susc.2003.11.006

Ordered assembly of octa- and tetra-metallic supramolecules on graphite

Dong Lin Shieh, Kom Bei Shiu, Jong Liang Lin

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

The layer structures of {[Ru₂(CO)₄(PMe ₃)₂](μ-O₂CCO₂)}₄ and {[Ru₂(CO)₄(PMe₃)₂](μ-O ₂CCH₂CO₂)}₂ on HOPG have been investigated by scanning tunneling microscopy. The STM image of the first compound shows an ordered array of equivalent, bright lobes which has a unit cell of 6.8±0.2×6.8±0.2 Å² with an included angle of 93±2°. The STM image of the latter shows a unit cell of the same lengths, but with a different included angle of 70±2°. From the comparisons between the STM image and the molecular structures, it strongly suggests that the bright lobes in the STM images are due to the [Ru₂(CO)₄(PMe₃)₂] units of both molecules and the PMe₃ groups pointing toward or away the HOPG surface. Based on the ordered away of the STM images, it is established that the layer structure of {[Ru₂(CO)₄(PMe ₃)₂](μ-O₂CCO₂)}₄ on HOPG has a unit cell of 13.6×13.6 Å² with an included angle of 93° and that the {[Ru₂(CO)₄(PMe ₃)₂](μ-O₂CCH₂CO ₂)}₂ layer has a unit cell of 14.4×7.9 Å ² with an included angle of 60°.

Original language	English
Pages (from-to)	L7-L12
Journal	Surface Science
Volume	548
Issue number	1-3
DOIs	https://doi.org/10.1016/j.susc.2003.11.006
Publication status	Published - 2004 Jan 1

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.susc.2003.11.006

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@article{30b70d26c74646a28df88c5023e288a3,

title = "Ordered assembly of octa- and tetra-metallic supramolecules on graphite",

abstract = "The layer structures of {[Ru2(CO)4(PMe 3)2](μ-O2CCO2)}4 and {[Ru2(CO)4(PMe3)2](μ-O 2CCH2CO2)}2 on HOPG have been investigated by scanning tunneling microscopy. The STM image of the first compound shows an ordered array of equivalent, bright lobes which has a unit cell of 6.8±0.2×6.8±0.2 {\AA}2 with an included angle of 93±2°. The STM image of the latter shows a unit cell of the same lengths, but with a different included angle of 70±2°. From the comparisons between the STM image and the molecular structures, it strongly suggests that the bright lobes in the STM images are due to the [Ru2(CO)4(PMe3)2] units of both molecules and the PMe3 groups pointing toward or away the HOPG surface. Based on the ordered away of the STM images, it is established that the layer structure of {[Ru2(CO)4(PMe 3)2](μ-O2CCO2)}4 on HOPG has a unit cell of 13.6×13.6 {\AA}2 with an included angle of 93° and that the {[Ru2(CO)4(PMe 3)2](μ-O2CCH2CO 2)}2 layer has a unit cell of 14.4×7.9 {\AA} 2 with an included angle of 60°.",

author = "Shieh, {Dong Lin} and Shiu, {Kom Bei} and Lin, {Jong Liang}",

note = "Funding Information: We gratefully acknowledge the support of the National Science Council of the Republic of China (NSC91-2113-M-006-012).",

year = "2004",

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doi = "10.1016/j.susc.2003.11.006",

language = "English",

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T1 - Ordered assembly of octa- and tetra-metallic supramolecules on graphite

AU - Shieh, Dong Lin

AU - Shiu, Kom Bei

AU - Lin, Jong Liang

N1 - Funding Information: We gratefully acknowledge the support of the National Science Council of the Republic of China (NSC91-2113-M-006-012).

PY - 2004/1/1

Y1 - 2004/1/1

N2 - The layer structures of {[Ru2(CO)4(PMe 3)2](μ-O2CCO2)}4 and {[Ru2(CO)4(PMe3)2](μ-O 2CCH2CO2)}2 on HOPG have been investigated by scanning tunneling microscopy. The STM image of the first compound shows an ordered array of equivalent, bright lobes which has a unit cell of 6.8±0.2×6.8±0.2 Å2 with an included angle of 93±2°. The STM image of the latter shows a unit cell of the same lengths, but with a different included angle of 70±2°. From the comparisons between the STM image and the molecular structures, it strongly suggests that the bright lobes in the STM images are due to the [Ru2(CO)4(PMe3)2] units of both molecules and the PMe3 groups pointing toward or away the HOPG surface. Based on the ordered away of the STM images, it is established that the layer structure of {[Ru2(CO)4(PMe 3)2](μ-O2CCO2)}4 on HOPG has a unit cell of 13.6×13.6 Å2 with an included angle of 93° and that the {[Ru2(CO)4(PMe 3)2](μ-O2CCH2CO 2)}2 layer has a unit cell of 14.4×7.9 Å 2 with an included angle of 60°.

AB - The layer structures of {[Ru2(CO)4(PMe 3)2](μ-O2CCO2)}4 and {[Ru2(CO)4(PMe3)2](μ-O 2CCH2CO2)}2 on HOPG have been investigated by scanning tunneling microscopy. The STM image of the first compound shows an ordered array of equivalent, bright lobes which has a unit cell of 6.8±0.2×6.8±0.2 Å2 with an included angle of 93±2°. The STM image of the latter shows a unit cell of the same lengths, but with a different included angle of 70±2°. From the comparisons between the STM image and the molecular structures, it strongly suggests that the bright lobes in the STM images are due to the [Ru2(CO)4(PMe3)2] units of both molecules and the PMe3 groups pointing toward or away the HOPG surface. Based on the ordered away of the STM images, it is established that the layer structure of {[Ru2(CO)4(PMe 3)2](μ-O2CCO2)}4 on HOPG has a unit cell of 13.6×13.6 Å2 with an included angle of 93° and that the {[Ru2(CO)4(PMe 3)2](μ-O2CCH2CO 2)}2 layer has a unit cell of 14.4×7.9 Å 2 with an included angle of 60°.

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JO - Surface Science

JF - Surface Science

IS - 1-3

ER -

Ordered assembly of octa- and tetra-metallic supramolecules on graphite

Abstract

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