Collect. Czech. Chem. Commun. 1983, 48, 2728-2734
https://doi.org/10.1135/cccc19832728

Structure of sodium tetracaprolactamatoaluminate. 1H NMR spectra of sodium isobutylcaprolactamatoaluminates

Otomar Kříž, Jiří Fusek and Bohuslav Čásenský

Institute of Inorganic Chemistry, Czechoslovak Academy of Sciences, 250 68 Řež

Abstract

Sodium tetracaprolactamatoaluminate (I) exists in benzene solution predominantly as a dimer. Its structure was proposed on the basis of molecular weight studies, infrared, and 1H NMR spectra of sodium isobutylcaprolactamatoaluminates (II). Two modes of dimerization are supposed: an eight-membered cyclic caprolactam bridge between two aluminum atoms or the coordination of the caprolactam ligands belonging to two different aluminum atoms to one sodium atom.