Unusual para-substituent effects on the intramolecular hydrogen-bond in hydrazone-based switches.

Authors :: Su X
Lõkov M
Kütt A
Leito I
Aprahamian I
Source :: Chemical communications (Cambridge, England) [Chem Commun (Camb)] 2012 Nov 04; Vol. 48 (85), pp. 10490-2.
Publication Year :: 2012
Abstract: A "V"-shaped Hammett plot shows that resonance-assisted hydrogen bonding does not dictate the strength of the intramolecular hydrogen bond in the E isomers of hydrazone-based switches because it involves an aromatic pyridyl ring.

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