naphthaleniden.
/nafˈθalᵻnʌɪd/, /napˈθalᵻnʌɪd/, U.S. /næpˈθæləˌnaɪd/, /næfˈθæləˌnaɪd/ Chemistry.
A radical anion, C10H8−, of naphthalene, characterized by delocalization of an additional electron over the naphthalene molecule; (also) a naphthalide.
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1963 Science 29 Nov. 1196/2 In the presence of about 1 percent of a good electron-accepting solute, such as naphthalene, the readily identifiable naphthalenide ion was produced.
1964 Chem. Rev. 64 301/1 The resulting, green colored compound being sodium naphthalene (also referred to as sodium naphthalenide).
1974 Chem. Rev. 74 243/2 The designations more commonly encountered for the radical anion of naphthalene are the naphthalene radical anion, naphthalenide, naphthalide, or naphthalene.
1992 Jrnl. Org. Chem. 57 389/2 It is known that potassium naphthalenide can transfer a single electron to a suitable organic acceptor molecule.
This is a new entry (OED Third Edition, June 2003; most recently modified version published online March 2022).
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n.1963