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Bond strengths of the gas-phase cluster ions X− (CS2)n (X = F, Cl, Br and I)

✍ Scribed by Kenzo Hiraoka; Susumu Fujimaki; Kazuo Aruga; Shinichi Yamabe

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
467 KB
Volume
208
Category
Article
ISSN
0009-2614

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✦ Synopsis

Thermodynamic quantities, AH:_ ,,* and AS:_ ,,", for the clustering reactions, X-(CSI),_,+CSz=X-(CS,),, X=F, Cl, Br and I, were measured with a pulsed electron-beam high-pressure mass spectrometer. A large binding energy, 35.0 kcal/mol, for F-...CS2 has been obtained, whereas those for other X-...C!& species are approximately 7-9 kcal/mol. Except the &, F-(CS2), geometry, linear X-(C!&), geometries are found, arising from the Sd'-Cd-G?' electronic nature and an effective polarization of "soft" atoms.

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