A vibrational spectroscopic comparison of vinyltriethoxysilane and vinylphosphonic acid adsorbed on oxidized aluminum

Coast, R.; Pikus, Matthew; Henriksen, P. N.; Nitowski, Gary A.

doi:10.1163/156856196x00805

Cited by 28 publications

(23 citation statements)

References 13 publications

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“…Instead, there are bands attributed to the symmetric and asymmetric stretches of the resonance stabilized RPO 3 2-group, which indicates that APAs bind to the aluminum surface via three symmetric P−O−Al bonds [1b, 8c] . This has been also found by inelastic tunneling spectroscopy (IETS) on adsorbed phosphonic and vinylphosphonic acids [9] .…”

Section: Introductionmentioning

confidence: 53%

Self‐assembled Monolayers of Alkylphosphonic Acids on Aluminum Oxide Surfaces – A Theoretical Study

Luschtinetz

Oliveira

Duarte

et al. 2010

Zeitschrift anorg allge chemie

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. Self-assembled monolayers of alkylphosphonic acids on aluminum oxide surfaces -A theoretical study. Zeitschrift für Anorganische und Allgemeine Chemie, 2010, 636 (8) (001) and boehmite γ-AlOOH (010) surface models. Mono-, bi-, and tridentate adsorption modes have been considered. In addition, the organization of single adsorbed molecules has been compared to the organization at full surface coverage. The height (thickness) of the self-assembled monolayers is always shorter than the length of the phosphonic acid molecules due to tilting of the alkyl chains. Tilt angles at full surface coverage are very similar to the tilt angle of a single adsorbed molecule, indicating that the density of the self-assembled monolayers is limited by the density of adsorption sites. The lateral interactions between alkyl chains are evidenced by small torsions of the adsorbed molecules, which may serve to minimize the repulsion forces between interchain hydrogen atoms. Similar tilt angles have been obtained for mono-, bi-, and tridentate adsorptions. Hence, the coordination mode cannot be characterized by the molecule tilting.____________ [a]

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Section: Introductionmentioning

confidence: 53%

Self‐assembled Monolayers of Alkylphosphonic Acids on Aluminum Oxide Surfaces – A Theoretical Study

Luschtinetz

Oliveira

Duarte

et al. 2010

Zeitschrift anorg allge chemie

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“…The tunneling spectra of organophosphorus acids were measured and their adsorption states were reported. 18,19,[86][87][88][89][90][91][92][93][94] The tunneling spectra of phosphonic acid, methylphosphonic acid, and dimethylphosphinic acid on alumina doped from methanol solutions are shown in Fig. 15.…”

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confidence: 99%

“…The tunneling spectrum of phosphonic acid shows the very strong νPH and δPH peak at 2420 and 1020 cm -1 , respectively. 19,[90][91][92][93][94] The bumps ( * ) at 2530…”

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confidence: 99%

“…The tunneling spectrum, however, has no corresponding peaks, but shows the weak and broad δsPO3 2-and δasPO3 2-peak at 560 and 460 cm -1 , respectively. 19,[90][91][92][93][94] The νasPO3 2-peak is considered to be weak in the tunneling spectrum and may be obscured by the undershoot of the very strong δPH peak. 19,90,92,93 The νsPO3 2-peak, which exists at 980 -990 cm -1 in the infrared and Raman spectrum of the phosphonate dianion, seems to be involved in the δPH peak.…”

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confidence: 99%

“…12,84,85 Dimethylphosphinic acid is adsorbed as a monoanion on the surface. The tunneling spectra of various substituted phosphonic acids 86,87,92,94 and diethylphosphate 89 were measured.…”

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confidence: 99%

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