Dynamic disorder in solid tetrakis(trimethylstannyl)methane, C(SnMe3)4, investigated by one- and two-dimensional variable-temperature119Sn and13C NMR spectroscopy

Modes of molecular reorientation in solid tetrakis(trimethylstannyl)methane, C(SnMe3)4, have been investigated by one- and two-dimensional13C and119Sn static and magic-angle spinning nuclear magnetic resonance spectroscopy (NMR) in the temperature range from 150 to 290 K. Spectral lineshape fitting of one- and two-dimensional119Sn NMR experiments shows the pseudo-fivefold disorder previously observed by single-crystal X-ray diffraction on C(SnMe3)4 to be dynamic disorder (activation energy Ea ≅ 32 kJmol−1). A dynamic-disorder model where each tin atom in a C(SnMe3)4 molecule occupies the twenty sites of a nearly perfect pentagonal dodecahedron with equal probability agrees best with the experimental solid-state NMR results. … celý popis

Podrobná bibliografie

Publikováno v

Applied magnetic resonance Ročník 17; číslo 2-3; s. 385 - 398

Hlavní autoři

Bernatowicz, P., Dinnebier, R. E., Helluy, X., Kümmerlen, J., Sebald, A.

Typ dokumentu

Journal Article

Jazyk

English

Vydáno

Heidelberg Springer Nature B.V 01. 06. 1999

Témata

Methane

NMR spectroscopy

Single crystals

ISSN

0937-9347
1613-7507

DOI

10.1007/BF03162173