✦ LIBER ✦

The homogeneous reaction CD4 + NH3 → CD3H + NH2D: The effect of ethane impurities

✍ Scribed by Assa Lifshitz; Pinhas Schechner

Publisher: John Wiley and Sons
Year: 1975
Tongue: English
Weight: 526 KB
Volume: 7
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550070604

No coin nor oath required. For personal study only.

✦ Synopsis

The homogeneous exchange reaction between tetradeutero methane and ammonia was studied behind reflected shocks in a single-pulse shock tube over the temperature range of 1300-1800°K. The rate of production of CD3H at the early stages of the reaction in mixtures ranging between 1-4.5y0 NH3 and l--4.3yO CD4 in argon is given by d[CDaHJ/ dt = k b [CDa]o[NH,]o, where ka = 8 X 10'6 exp (-65.3 X lO3/RT) cm3/mole.sec. This activation energy is considerably lower than the one that may be expected on the basis of a pure free radical mechanism. It is rationalized by CtDs impurities in the methane. No clear answer can be obtained regarding the role of a four-center intermediate in this reaction.

📜 SIMILAR VOLUMES

Statistical phase space theory of polyat

Statistical phase space theory of polyatomic systems: application to the reactions NH+3 + NH3 → NH+4 + NH2 and NH+·3 + H2O → NH+4 + OH·

✍ W.J. Chesnavich; Michael T. Bowers 📂 Article 📅 1977 🏛 Elsevier Science 🌐 English ⚖ 476 KB

Isotope effect in resonant vibrational e

Isotope effect in resonant vibrational excitation of H2O (D2O), NH3 (ND3), CH4 (CD4)

✍ Mondher Ben Arfa; Florence Edard; Michel Tronc 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 433 KB

First Characterization of the Ammine—Amm

First Characterization of the Ammine—Ammonium Complex [{NH4(NH3)4}2 (μ-NH3)2]2+ in the Crystal Structure of [NH4(NH3)4] [B(C6H5)4]×NH3 and the [NH4(NH3)4]+ Complex in [NH4(NH3)4] [Ca(NH3)7] As3S6×2NH3 and [NH4(NH3)4] [Ba(NH3)8] As3S6×NH3.

✍ Thomas Rossmeier; Markus Reil; Nikolaus Korber 📂 Article 📅 2004 🏛 John Wiley and Sons ⚖ 94 KB 👁 1 views

Third-body-assisted, binary ion—molecule

Third-body-assisted, binary ion—molecule reactions. The reaction NH+3 + H2 → NH+4 + H

✍ H. Böhringer 📂 Article 📅 1985 🏛 Elsevier Science 🌐 English ⚖ 392 KB

AH was stud& m a selected-ion dnft tube as a funcfion of gas density and temperature from 2U to 298 K A pressure dependence of the second-order rate coefficient was observed which indicates Hal Lhe reactlon rate is Increased when the intermedlate complexes colhde with a third body. It IS concluded t

Synthesis, crystal structure, and therma

Synthesis, crystal structure, and thermal studies of (NH4)2Cd2(SeO4)3·3H2O

✍ M.L. Martínez; A. Rodriguez; L. Mestres; X. Solans; E.H. Bocanegra 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 401 KB

New Types of Complexes Based on Re4 Chal

New Types of Complexes Based on Re4 Chalcocyanide Clusters − Syntheses and Crystal Structures of [Ni(NH3)5]2[Re4Te4(CN)12]·3.4H2O and [Cd(NH3)5][Cd(NH3)3][Re4Te4(CN)12]·4H2O

✍ Yuri V. Mironov; Oliver Oeckler; Arndt Simon; Vladimir E. Fedorov 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 290 KB 👁 2 views