Ionic-liquid-assisted synthesis of the phosphorus interhalides [PBr4][IBr2] and [PBr4][I5Br7]

被引：12

作者：

Hausmann, David ^{[1
]}

Koppe, Ralf ^{[1
]}

Wolf, Silke ^{[1
]}

Roesky, Peter W. ^{[1
]}

Feldmann, Claus ^{[1
]}

机构：

[1] Karlsruhe Inst Technol, Inst Anorgan Chem, Engesserstr 15, D-76131 Karlsruhe, Germany

来源：

DALTON TRANSACTIONS | 2016年 / 45卷 / 41期

关键词：

SENSITIZED SOLAR-CELLS; CRYSTAL-STRUCTURE; RAMAN-SPECTRA; IODINE; SALTS; MONOANIONS; BROMINE; ANIONS; POLYHALIDES; HALOGEN;

D O I：

10.1039/c6dt03303b

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The phosphorus interhalides [PBr4][IBr2] (1) and [PBr4](2)[I5Br7] (2) were prepared by reaction of PBr5 and the interhalogen IBr in the ionic liquid [MeBu3N][N(Tf)(2)] (N(Tf)(2): bis(trifluoromethylsulfonyl)amide). [PBr4][IBr2] (1) consists of tetrahedral [PBr4](+) cations and linear [IBr2](-) anions. [PBr4](2)[I5Br7] (2) also contains [PBr4](+) cations as well as the iodine bromide anion [I5Br7](2-). The latter represents the yet largest known polyiodinebromide. Moreover, (2) shows remarkable halogen release (IBr and Br-2) of 96.8 wt% below 300 degrees C. For the ternary system P-Br-I, (1) and (2) are the first compounds that were characterized by crystal structure analysis. Composition, bonding situation and properties were further validated by energy dispersive X-ray (EDX) analysis, thermogravimetry (TG) and Raman spectroscopy.

引用

页码：16526 / 16532

页数：7

共 27 条

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