𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Mass spectrometric determination of the heats of formation of the silane bromides

✍ Scribed by Milton Farber; R.D. Srivastava

Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
338 KB
Volume
60
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis

Receixd 29 Augwt 1978 ?he reaction of Sik~&~) with Hz &> in the temperature range 900-l 143 K has been studied by a m-spect~ometh method. Second and third law rezrion enthalpies were obtained for SiBqfg) + H2 (g) = SiHBr3 (;s) + HBr(g), SiHBr3(g) + H2 Q) = SiQ Br2 B) + HBr@). and SiHzBr2 (g) + Hz (3 = SM3Brfj.T) + HBr(g). From the heats of reaction, third-law aHfigs VaIUeS of -72.5 '+ 1, -43.2 + 1.5 and -15.3 ? 0.5 kcal/moIe were obtained for SiHBr&), .SiH2Br2&), and SiHlsBr(g), respectively-

πŸ“œ SIMILAR VOLUMES

High temperature Knudsen cell mass spect
High temperature Knudsen cell mass spectrometric determination of the heats of atomization of AlAu2 and Al2Au
✍ K.A. Gingerich; D.L. Cocke; H.C Finkbeiner; C.-A. Chang πŸ“‚ Article πŸ“… 1973 πŸ› Elsevier Science 🌐 English βš– 483 KB

The atomization energies, AIf$ o. 110 i 5 kcal mole-' of the molecules AIAu, and ,II, Au have been determined as 121 k 6 nnd or 506.3 + 25.'1 and 4G0.2 + 20.9 kJ mole-', respectively. Theses atomization energies are discussed in terms of bond strengths and the Pauling model of a polar bond. .4vaila

Comment on the accurate theoretical dete
Comment on the accurate theoretical determination of heats of formation
✍ Michel Sana; Minh Tho Nguyen πŸ“‚ Article πŸ“… 1992 πŸ› Elsevier Science 🌐 English βš– 379 KB

Different theoretical approaches in determining heats of formation (AHf) at the chemical accuracy level ( +\_ kcal/mol) are commented on. We show that calculations at the MP4SDTQ/6-311 + + G (3df, 2p) level of molecular orbital theory reproduce experimental results best. Accurate determination of AH