Publication detail

Synthesis of Phosphoryl Chloro- and Bromofluorides and Crystal Structure of POFCl2 and POF2Cl

ROVNANÍK, P. ŽÁK, Z. ČERNÍK, M.

Original Title

Synthesis of Phosphoryl Chloro- and Bromofluorides and Crystal Structure of POFCl2 and POF2Cl

Type

journal article - other

Language

English

Original Abstract

A simple procedure for the preparation of phosphoryl chlorofluorides, POFCl2 and POF2Cl, by chlorination of the appropriate potassium fluorophosphates, K2PO3F and KPO2F2, respectively, with PCl5 is described. The analogous bromination with PBr5 gives POFBr2 and POF2Br. However, due to low yields and high content of impurities, this method is not suitable for the synthesis of the former compound. Both chlorofluorides were crystallized from the melt at low temperatures and their crystal structures were determined by X-ray diffraction at -153 C. Distorted tetrahedral molecules of POFCl2 are only weakly associated through intermolecular O...Cl contacts forming infinite chains similarly as in crystalline POCl3. In POF2Cl, however, the chains are formed by the O...P contacts, and an additional P-O...Cl bridging leads to their linkage into a double-chain structure.

Keywords

Phosphorus, Fluorides, Crystal Structure, Intermolecular association, Phosphoryl fluorohalides

Authors

ROVNANÍK, P.; ŽÁK, Z.; ČERNÍK, M.

Released

29. 5. 2006

Publisher

Wiley-VCH Verlag GmBH

ISBN

0044-2313

Periodical

Zeitschrift für anorganische und allgemeine Chemie

Year of study

2006 (632)

Number

7

State

Federal Republic of Germany

Pages from

13566

Pages to

1362

Pages count

7

BibTex

@article{BUT43182,
  author="Pavel {Rovnaník} and Zdirad {Žák} and Miloš {Černík}",
  title="Synthesis of Phosphoryl Chloro- and Bromofluorides and Crystal Structure of POFCl2 and POF2Cl",
  journal="Zeitschrift für anorganische und allgemeine Chemie",
  year="2006",
  volume="2006 (632)",
  number="7",
  pages="13566--1362",
  issn="0044-2313"
}