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The saturated hydrides of tervalent arsenic, having the general formula AsnHn+2. Individual members having an unbranched arsenic chain are named arsane, diarsane, triarsane, etc. The name of a saturated hydride of arsenic where one or more arsenic atoms have bonding number 5 is formed by prefixing locants and 5 symbols to the name of the corresponding arsane. CNOC, Treatment of Variable Valence in Organic Nomenclature (lambda convention), PAC 56, 769-778 (1984). Rule Lm.1. GNOC Recom. R-2.1, R-2.2. E.g. H2AsAsHAsH2 triarsane, H4AsAsH3AsH4 15,25,35-triarsane. Hydrocarbyl derivatives of AsH3 belong to the class arsines.
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