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单词 Prismanes
释义

Prismanes

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Prismanes

[3]Asterane (left) and [4]asterane
Bi[5]prismane (left) and tri[4]prismane
Helvetane (left) and Israelane

The prismanes are a class of hydrocarbon compounds consisting of prism-like polyhedra of various numbers of sides on the polygonal base. Chemically, it is a series of fused cyclobutane rings (a ladderane, with all-cis/all-syn geometry) that wraps around to join its ends and form a band, with cycloalkane edges. Their chemical formula is (C2H2)n, where n is the number of cyclobutane sides (the size of the cycloalkane base), and that number also forms the basis for a system of nomenclature within this class. The first few chemicals in this class are:

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更新时间:2025/6/20 0:36:58