Following the history of organic chemistry, studies on relations between chemical (and later
physicochemical) properties and the structure of chemical species in question are the heart …

Tautomerism, a particular case of isomerism, plays an important role in modern organic
chemistry, biochemistry, medicinal chemistry, pharmacology, molecular biology, and life …

Though the hydrogen bond (H-bond) is known since 1920, all attempts to predict its
geometry and energetics from the structure of the interacting molecules have been so far …

The resonance-assisted hydrogen bond (RAHB) is a model of synergistic interplay between
π-delocalization and hydrogen-bond (H-bond) strengthening originally introduced (Gilli, G.; …

The Cambridge Structural Database (CSD) and its associated software systems have
formed the basis for more than 800 research applications in structural chemistry …

Resonance‐assisted hydrogen bonding (RAHB), a concept introduced by Gilli and co‐
workers in 1989, concerns a kind of intramolecular H‐bonding strengthened by a …

Two intramolecularly hydrogen-bonded arylhydrazone (aryl= phenyl or naphthyl) molecular
switches have been synthesized, and their full and reversible switching between the E and Z …

The tautomeric⊙⊙⊙ OC− CN− NH⊙⊙⊙⇄⊙⊙⊙ HO− CC− NN⊙⊙⊙ ketohydrazone−
azoenol system may form strong N− H⊙⊙⊙ O/O− H⊙⊙⊙ N intramolecular resonance …

The replacement of one of the carbonyl groups in a 1, 2, 3-triketone-2-naphthylhydrazone
with a pyridine ring yields an original molecular switch that can be switched fully, effectively …

Structural and spectroscopic properties of hydrogen bonding in solid 5-nitro-N-
salicylideneethylamine have been investigated. This is the first example of ionic [O-⊙⊙⊙ …