These are weak chemical bonds between a hydrogen atom and an electronegative atom (e.g. oxygen, nitrogen, fluorine) in another molecule.
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(2E,4E)-2-CYANO-5-PHENYLPENTA-2,4-DIENETHIOAMIDE
9-cis-retinal n-butylamine Schiff base
2-ethynyl-6-(phenylmethoxy)pyridine
(5-chloro-2-{[(4-cyano-3-nitrobenzyl)amino]carbonyl}phenoxy)acetic acid
Ethanol, 2-[2-[2-[4-(triphenylmethyl)phenoxy]ethoxy]ethoxy]-, 4-methylbenzenesulfonate
