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Caro's Acid: Molecular Structure and Association in the Solid State at −130°C
Author(s) -
Frank Walter,
BertschFrank Birgit
Publication year - 1992
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199204361
Subject(s) - oleum , intramolecular force , intermolecular force , hydrogen bond , crystallography , solid state , crystal structure , chemistry , molecule , crystal (programming language) , stereochemistry , organic chemistry , computer science , programming language
The controlled reaction of concentrated H 2 O 2 with oleum affords H 2 SO 5 /H 2 SO 4 mixtures from which single crystals of H 2 SO 5 ( 1 ) precipitate. The X‐ray crystal structure analysis contradicts the postulates based on vibrational spectroscopy and shows that 1 occurs as peroxoacid without intramolecular hydrogen bonds (picture right), but is linked in a layer type structure by strong intermolecular OH … O hydrogen bonds.