Cyclophane bis(sulfoxides) a thermal analysis study |
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Authors: | J O Hill P J Jessup J A Reiss |
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Institution: | (1) Department of Chemistry, La Trobe University, 3083 Bundoora, Victoria, Australia |
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Abstract: | A thermogravimetry study of a series of cyclophane bis(sulfoxides) (1–6) has shown that thermal decomposition of these compounds occurs in two stages with a stepwise loss of the sulfoxide groups at well defined decomposition temperatures. The stepwise thermal cleavage has been rationalized in terms of the stereochemistry of the sulfoxide groups and the strain associated with the resultant elimination products.
Zusammenfassung Eine thermogravimetrische Studie einer Reihe von Cyclophan-bis(sulphoxiden) (1–6) zeigte, dass die thermische Zersetzung dieser Verbindungen in zwei Stufen unter stufenweisem Verlust der Sulphoxidgruppen bei gut definierten Zersetzungstemperaturen vor sich geht. Die stufenweise thermische Spaltung wurde aufgrund der Stereochemie der Sulphoxidgruppen und der mit den resultierenden Eliminationsprodukten verbundenen Belastung erörtert.
Résumé Une étude thermogravimétrique d'une série de bis (sulfoxydes) de cyclophane (1–6) a montré que la décomposition thermique de ces composés se déroule en deux étapes avec pertes graduelles des groupes sulfoxydes à des températures de décomposition bien définies. Le clivage thermique graduel est expliqué par la stéréochimie des groupes sulfoxydes et la contrainte associée aux produits éliminés.
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