Sitzmann, Helmut; Boese, Roland; Stellberg, Peter:

Meso- and rac-decaisopropylstannocene: stereoisomerism caused by parallel arrangement of two pentaisopropylcyclopentadienyl ligands in paddle-wheel conformation.

In: Zeitschrift fuer Anorganische und Allgemeine Chemie, Jg. 622 (1996) ; Nr. 4, S. 751-755
ISSN: 0044-2313
Zeitschriftenaufsatz / Fach: Chemie
Decaisopropylstannocene 1 is the first decaisopropylmetallocene, where x-ray diffraction data could be successfully refined and the third example of a group 14 metallocene with a sym. sandwich structure. Due to the directionality of the iso-Pr substituents, 1 occurs as a mixt. of diastereomers in the cryst. state as well as in soln. The stereoisomers exhibit the expected signals in soln. (1H and 13C NMR) and in the crystal (CPMAS 119Sn NMR).

Dieser Eintrag ist freigegeben.