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Heats of formation of BF 4 − ions and the fluorine anion affinity of BF 3 molecules
Author(s) -
Veljković M.,
Nešković O.,
Zmbov K. F.,
Borshchevsky A. Ya.,
Vaisberg V. E.,
Sidorov L. N.
Publication year - 1991
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.1290050111
Subject(s) - chemistry , ion , enthalpy , molecule , fluorine , standard enthalpy of formation , analytical chemistry (journal) , inorganic chemistry , organic chemistry , thermodynamics , physics
Abstract The effusion method, together with mass spectral analysis, has been used to study ion/molecule equilibria involving the negative ion BF 4 − . The experimental data obtained have made it possible to calculate enthalples for the reactions:and the enthalpy of formation ΔH f (BF 4 − , 298) as ( −1716±8) kj/mol. The fluorine anion affinity of BF 3 has been determined as FA((BF 3 )g, 298)=(331±8)kj/mol −1 and compared with Literature data.