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单词 cryptand
释义

cryptandn.

Brit. /ˈkrɪptand/, U.S. /ˈkrɪptˌænd/
Origin: Formed within English, by derivation. Etymons: crypto- comb. form, -and suffix2.
Etymology: < crypto- comb. form + -and suffix2, after cryptate n. and ligand n. (see quot. 1975).
Chemistry.
An organic compound whose molecule contains a cavity within which a metal cation can be chemically bound. Cf. cryptate n.Cryptands are typically bi- or polycyclic ligands having amine and/or ether groups.
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the world > matter > chemistry > organic chemistry > [noun] > organic structure > cyclic or ring compounds > bicyclic > specific
cryptand1975
1975 Y. M. Cahen et al. in Jrnl. Physical Chem. 79 1291/2 Following the suggestion of Lehn (personal communication) we designate the ligands as cryptands and the corresponding complexes as cryptates.
1988 P. D. Beer in T. E. Edmonds Chem. Sensors ii. 32 Because the cryptand host cavity is..spheroidal in shape, it is well adapted for a ‘ball-like’ guest metal cation.
2006 E. V. Anslyn & D. A. Dougherty Mod. Physical Org. Chem. x. 561 If a Li-specific cryptand..is added to the reaction, no product is formed.
This entry has been updated (OED Third Edition, June 2011; most recently modified version published online March 2022).
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n.1975
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