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Volumn 43, Issue 10, 2004, Pages 1291-1294

Second-order templation: Ordered deposition of supramolecular squares on a chloride-covered Cu(100) surface

Author keywords

Adsorption; Monolayers; Scanning tunnel microscopy; Self organization

Indexed keywords

ADSORPTION; DEPOSITION; NEGATIVE IONS; POSITIVE IONS;

EID: 4544281391     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200352968     Document Type: Article
Times cited : (69)

References (53)
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    • note
    • The Θ value is defined as the chloride to copper ratio. At Θ = 0.5 the maximum coverage of the surface with chloride is reached.
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    • note
    • The nitrate counterions remain in the aqueous solution above the surface.
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    • The augmented MM2 force field as implemented in the CACHE 5.0 program package for Windows was used for the calculation (Fujitsu Ltd., Krakow, Poland, 2001).
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    • The value of 2.05 nm given in Figure 1 is inclusive of the Van der Waals radius of the peripheral hydrogen atoms. The lower observed value of 1.9 nm seems reasonable, when one takes into account that the peripheries of two adjacent squares may well interdigitate thus maximizing the Van der Waals contacts. The Pt-Pt distance of 1.14 nm determined by molecular modeling agrees well with the values of 1.109 and 1.112 nm reported in a recent X-ray crystal structure analysis of 1. See: M. Aoyagi, K. Biradha, M. Fujita, Bull. Chem. Soc. Jpn. 1999, 72, 2603-2606.
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    • Aoyagi, M.1    Biradha, K.2    Fujita, M.3
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    • STM measurements in dry environment were carried out with a standard commercial microscope with a low current converter employing PtIr tips. For linear unbranched molecules the contrast is often enhanced by studying these molecules with the STM tip submerged in the liquid. In contrast, a reduced resolution was observed for large, flexible three-dimensional molecules when measured in solution. This was attributed to the half-room being open for arrangement in solution (leading to a more natural three-dimensional arrangement) and the increased interaction with the solvent molecules. These observations support the fact that the results presented in this paper are attributed to a template effect. See: I. Widmer, U. Hubler, M. Stöhr, L. Merz, H.-J. Güntherodt, B. A. Hermann, P. Samorí, J. P. Rabe, P. B. Rheiner, G. Greiveldinger, P. Murer, Helv. Chim. Acta 2002, 85, 4255-4263.
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    • Widmer, I.1    Hubler, U.2    Stöhr, M.3    Merz, L.4    Güntherodt, H.-J.5    Hermann, B.A.6    Samorí, P.7    Rabe, J.P.8    Rheiner, P.B.9    Greiveldinger, G.10    Murer, P.11


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.