Synthesis and X-Ray Crystal Structure of the First Pure and Air-Stable Salt of Peroxymonosulphuric Acid: (Ph)4PHSO5

Molecules

Sandro Campestrini¹ 

[1] ¹Università di Padova, Dipartimento di Chimica Organica, Centro CNR di Studio sui Meccanismi di Reazioni Organiche, Via Marzolo 1, 35131 Padova, Italia ²Università di Padova, Dipartimento di Chimica Organica, Centro CNR di Studio sui Biopolimeri, Via Marzolo 1, 35131 Padova, Italia

关键词: Monopersulphate;    X-Ray Crystallography;    Oxidation;   

DOI  :  10.3390/50600886

来源: mdpi

【 摘 要 】

In this paper we describe the synthesis of tetraphenylphosphonium peroxymonosulphate, its crystal structure and packing mode. The asymmetric unit accomodates two independent molecules of the monopersulphate anion, which are held together by hydrogen bonds. In the packing mode, rows of such dimers are surrounded by four rows of tetraphenyl cations. The consequence is that the highly water sensitive HSO₅¯ anions are segregated inside hydrophobic channels composed by the lipophilic cations. This circumstance presumably accounts for the exceptional stability of the title compound.

【 授权许可】

CC BY   
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.