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Type: Artigo de periódico
Title: Thermochemistry of adducts of triphenyl derivatives of N, P and As with arsenic trihalides
Author: Dunstan, PO
Abstract: The complexes AsX(3) . nL(where L is triphenylamine (NPh(3)), triphenylphosphine (PPh(3)) or triphenylarsine (AsPh(3)); n = 1, 3/2, 2 or 3, and X is Cl, Br or I) were synthesized and characterized by melting points, elemental analysis, thermal studies, mass spectra and IR spectroscopy. From the enthalpies of dissolution in 25 or 50% diethylether in acetone, 10% ethanolamine in acetone or 20% cyclohexane in acetone, and using the appropriate thermochemical cycles, the following thermochemical parameters for the adducts have been determined: the standard enthalpies for the Lewis acid/base reaction (Delta(r)H(theta)), the standard enthalpies of formation (Delta(f)H(theta)), the standard enthalpies of decomposition (Delta(D)H(theta)), the lattice standard enthalpies (Delta(M)H(theta)) and the standard enthalpies of the Lewis acid/base reactions in the gaseous phase (Delta(r)H(theta)(g)). The mean standard enthalpies of arsenic-group-V element bonds have been estimated.
Subject: enthalpies of As-N, As-P and As-P bonds
solution heats of arsenic trihalide adducts
thermal studies of arsenic trihalides adducts
thermochemical parameters of arsenic trihalide adducts
thermochemistry of arsenic trihalides adducts
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Date Issue: 1996
Appears in Collections:Unicamp - Artigos e Outros Documentos

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