四烷基鏻多金属氧酸盐离子液体：新型有机-无机杂化材料。

Tetraalkylphosphonium polyoxometalate ionic liquids: novel, organic-inorganic hybrid materials.

作者信息

Rickert Paul G, Antonio Mark R, Firestone Millicent A, Kubatko Karrie-Ann, Szreder Tomasz, Wishart James F, Dietz Mark L

机构信息

Chemistry Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.

出版信息

J Phys Chem B. 2007 May 10;111(18):4685-92. doi: 10.1021/jp0671751.

DOI:10.1021/jp0671751

PMID:17474696

Abstract

Pairing of a Keggin or Lindqvist polyoxometalate (POM) anion with an appropriate tetraalkylphosphonium cation is shown to yield the first members of a new family of ionic liquids (ILs). Detailed characterization of one of them, an ambient-temperature "liquid POM" comprising the Lindqvist salt of the trihexyl(tetradecyl) phosphonium cation, by voltammetry, viscometry, conductimetry, and thermal analysis indicates that it exhibits conductivity and viscosity comparable to those of the one previously described inorganic-organic POM-IL hybrid but with substantially improved thermal stability.

摘要

已证明，将一个Keggin或Lindqvist多金属氧酸盐（POM）阴离子与一个合适的四烷基鏻阳离子配对，可产生一个新的离子液体（IL）家族的首批成员。通过伏安法、粘度测定法、电导测定法和热分析对其中一种进行详细表征，该物质是一种室温“液体POM”，由三己基（十四烷基）鏻阳离子的Lindqvist盐组成，结果表明它的电导率和粘度与先前描述的无机 - 有机POM - IL杂化物相当，但热稳定性有显著提高。