90003485

open access

Accepted Manuscript

Synthesis and thermal properties of salts comprising cationic bis(oxazoline)-Au-III complexes and fluorinated anions

English (英語)

Polyhedron

113

1-4

Elsevier

2016-07-27

2018-08-01

Salts comprising cationic bis(oxazoline) (box)-Au-III complexes and fluorinated anions were synthesized and their thermal properties were investigated. Cations that contain box ligands with butyl substituents (butyl-box) were used with either achiral-(R,S) ([1](+)) or chiral-(S,S) ([2](+)) configurations. [1][Tf2N] (Tf2N- = bis(trifluoromethanesulfonyl)amide) is a solid that can also be classified as an ionic liquid (T-m = 62 °C, T-g = -11 °C). [1]X and [2]X (X = SbF6- and BF4-) exhibit melting points higher than 100 °C, where [1]X exhibits a higher melting point than [2]X. A salt with an ethyl-box ligand ([3][SbF6]) exhibits no melting up to its decomposition temperature of 267 °C. Crystal structure determination revealed that the achiral cation in [1][BF4] has a bent structure. The potential utility of [1][Tf2N] for catalysis was demonstrated by the catalytic formation of an acetal from an alkyne.

Catalytic activity

学術雑誌論文

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