Rm. Minyaev et al., DOUBLE PROTON MIGRATIONS IN THE ASSOCIATES OF FORMIC-ACID WITH NITROUS, NITRIC, ORTHOPHOSPHORIC, AND SULFURIC ACIDS, Russian chemical bulletin, 45(9), 1996, pp. 2068-2073
Mechanisms of the proton transfer in dimeric associates of formic acid
with nitrous, nitric, orthophosphoric, and sulfuric acids were studie
d by the ab initio (HF/6-31G*) method. The mechanism of the cooperati
ve (concerted or one-step) proton transfer was shown to occur in all c
ases. The calculated activation barriers of the proton transfer reacti
ons for the associates investigated are equal to 19.9, 14.2, 13.3, and
10.7 kcal mol(-1), respectively.