Vogel N (2011)
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 2011
Publisher: AMER CHEMICAL SOC
Book Volume: 27
Pages Range: 8044-8053
Journal Issue: 13
DOI: 10.1021/la200836v
Symmetric transition metal complexes of 2,4-pentanedione (acetyl acetone) are interfacially active: Spinning drop tensiometry reveals lowering of the interfacial tension at the water-organic interface, most pronounced for [Cr(acac)(3)], [Fe(acac)(3)], [Zr(acac)(4)], and [Hf(acac)(4)]. The interfacial activity is explained by the in situ generation of amphiphilic species. Based on tensiometry and (1)H and diffusion-ordered NMR spectroscopy (DOSY NMR), hydrogen bonding of the organically dissolved complexes with water, in some cases in combination with inner-sphere hydrolytic coordination, is identified as the primary origin of this amphiphilicity. The complexes are a rare example of symmetric molecules that turn amphiphilic only upon interfacial interaction with water.
APA:
Vogel, N. (2011). Interfacial Activity of Metal beta-Diketonato Complexes: In Situ Generation of Amphiphiles by Water Coordination. Langmuir, 27(13), 8044-8053. https://dx.doi.org/10.1021/la200836v
MLA:
Vogel, Nicolas. "Interfacial Activity of Metal beta-Diketonato Complexes: In Situ Generation of Amphiphiles by Water Coordination." Langmuir 27.13 (2011): 8044-8053.
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