phosphinicadj.
/fɒsˈfɪnɪk/, /fɒsˈfiːnɪk/, U.S. /fɑsˈfɪnɪk/, /fɑsˈfinɪk/ Chemistry.
phosphinic acid, an acid derived from phosphine, spec. hypophosphorous acid H2PO(OH); any substituted derivative of this in which the substituent is an alkyl or aryl group.
ΚΠ
1875 H. Watts Dict. Chem.: 2nd Suppl. 956 Phosphinic acids.
1917 Jrnl. Amer. Chem. Soc. 39 1633 Phosphinic, phosphonic and sulfonic acids are named from the parent compounds as follows: C6H5HPOOH, benzenephosphinic acid [etc.].
1952 Chem. & Engin. News 2 June 2336/2 In the United States the following names have been in use for four acids important for their organic derivatives:..H2PO.OH, phosphinic.
1988 F. A. Cotton & G. Wilkinson Adv. Inorg. Chem. (ed. 5) xi. 423 The more correct, though rarely used name of this acid [sc. hypophosphorous acid] is phosphinic acid.
1992 L. H. Opie Angiotensin-converting Enzyme Inhibitors vii. 160 Ceranapril is a phosphinic acid, like fosinopril, but not a prodrug and active as the free acid in the absence of esterification.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
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adj.1875