2021

[71] S. Herbers, O. Zingsheim, H.V.L. Nguyen, L. Bonah, B. Heyne, N. Wehres, S. Schlemmer, Chem. Phys. Chem. 22, 2420–2428 (2021).

Internal rotation arena: Program performances on the low barrier problem of 4-methylacetophenone

[70] C. Dindic, H.V.L. Nguyen, Chem. Phys. Chem. 22, 2420–2428 (2021).

The Microwave Spectrum of the Two-Top Molecule 2-Acetyl-3-methylthiophene

[68] K.P.R. Nair, S. Herbers, J.-U. Grabow, H.V.L. Nguyen, J. Mol. Struct. 1246, 131096 (2021).

Neighborhood matters: Steric effects on methyl internal rotation and chlorine nuclear quadrupole coupling in 2-fluoro-4-chlorotoluene

[67] C. Dindić, A. Lüchow, N. Vogt, J. Demaison, H.V.L. Nguyen, J. Phys. Chem. A 125, 4986−4997 (2021).

Equilibrium structure in the presence of methyl internal rotation: Microwave spectroscopy and quantum chemistry study of the two conformers of 2-acetylfuran

[66] T. Nguyen, W. Stahl, H.V.L. Nguyen, I. Kleiner, J. Chem. Phys. 154, 204304 (2021).

Local versus global approaches to treat two equivalent methyl internal rotations and 14N quadrupole coupling of 2,5-dimethylpyrrole

[65] H.V.L. Nguyen, I. Gulaczyk, M. Kręglewski, Isabelle Kleiner, Coord. Chem. Rev. 436, 213797 (2021). Review paper. Open access.

Large amplitude inversion tunneling motion in ammonia, methylamine, hydrazine, and secondary amines: From structure determination to coordination chemistry

[64] J. Mélan, S. Khemissi, H.V.L. Nguyen, Spectro. Chim. Acta A 253, 119564 (2021).

Steric effects on two inequivalent methyl internal rotations of 3,4-dimethylfluorobenzene

[63] H.V.L. Nguyen, M. Andresen, W. Stahl, Phys. Chem. Chem. Phys. 23, 2930 (2021).

Conformational sampling and large amplitude motion of methyl valerate†

† For Wolfi.

[62] K.P.R. Nair, S. Herbers, W.C. Bailey, D.A. Obenchain, A. Lesarri, J.-U. Grabow, H.V.L. Nguyen, Spectro. Chim. Acta A 247, 119120 (2021).

Internal rotation and chlorine nuclear quadrupole coupling in 2-chloro-4-fluorotoluene explored by microwave spectroscopy and quantum chemistry

[61] H.V.L. Nguyen, I. Kleiner, Phys. Sci. Rev. (2021). Review paper & book chapter

Understanding (coupled) large amplitude motions: The interplay of microwave spectroscopy, spectral modeling, and quantum chemistry

Theoretical and Computational Chemistry, edited by Iwona Gulaczyk and Bartosz Tylkowski, Berlin, Boston: De Gruyter, 2021, pp. 41-92.