首页|Equilibrium molecular structure and intramolecular interactions of picolinic acid hydrazide

Equilibrium molecular structure and intramolecular interactions of picolinic acid hydrazide

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Conformational composition and molecule structure of gaseous picolinic acid hydrazide (picolinohydrazide) have been investigated for the first time by means of joint application of gas electron diffraction and quantum chemical calculations. Semi-experimental equilibrium molecular parameters of the prevailing conformer possessing C-s symmetry have been determined. The standard enthalpy of formation of gaseous picolinohydrazide has been estimated using G4 theory. The intermolecular interactions stabilizing major conformation of free picolinohydrazide have been discussed using the results of NBO, AIM and NCI analyses. The structure of gaseous picolinohydrazide was found to be different from that of the solid phase.

Picolinic acid hydrazideGas-phase electron diffractionEquilibrium molecular structureIntramolecular interactionsStandard enthalpy of formation in the gas & nbspphaseATOMSPYRAZINAMIDEAPPROXIMATIONBORON

Kolesnikova, Inna N.、Chegodaev, Nikolai A.、Sharanov, Pavel Yu. F.、Shishkov, IgorF

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Lomonosov Moscow State Univ

2022

Chemical Physics Letters

Chemical Physics Letters

EISCI
ISSN:0009-2614
年,卷(期):2022.793
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