On Librational and Rotational Motions of Aromatic Rings in Layered Sn(IV) and Zr(IV) Phosphonate Materials: A Variable-Temperature 13C, 31P Solid-State NMR Study. Academic Article

abstract

• According to the solid-state 13C, 31P NMR study and 13C chemical shift anisotropy (CSA) measurements, aromatic rings in the layered metal(IV) phosphonate materials behave as low-energy rotors at rotation activation energy, Eact, of 1.4-3.0 kcal/mol. The rotational mechanism consists of 180 flips and librations around C(1)-C(4) axis. The amplitude of the librations, added to the flips, grows with temperature, shifting the reorientations toward rotational diffusion at high temperatures.

authors

• Zhou, Hongcai

published proceedings

• J Phys Chem Lett

altmetric score

• 0.5

author list (cited authors)

• Bakhmutov, V. I., Elliott, D. W., Contreras-Ramirez, A., Clearfield, A., & Zhou, H.

citation count

• 2

complete list of authors

• Bakhmutov, Vladimir I||Elliott, Douglas W||Contreras-Ramirez, Aida||Clearfield, Abraham||Zhou, Hong-Cai

publication date

• July 2020

publisher

• American Chemical Society (ACS)  Publisher

published in

• Journal of Physical Chemistry Letters  Journal

PubMed Central ID

• 32496774

Digital Object Identifier (DOI)

• 10.1021/acs.jpclett.0c01173

start page

• 4958

end page

• 4961

volume

• 11

issue

• 13

URL

• http://dx.doi.org/10.1021/acs.jpclett.0c01173