English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The  13 C,  27 Al and  11 B NMR spectra of tri(tert-butyl)alane, AlBu t  3 , and of the corresponding borane, BBu t  3 , respectively, were examined in order to determine the magnitude of the coupling constants  1 J( 27 Al, 13 C) = 94±5 Hz and  1 J( 13 C, 11 B) = 52±2 Hz by measurement of the line widths of the  13 C NMR signals and of the relaxation rates of the quadrupolar  27 Al and  11 B nuclei. This is the first example of  1 J( 27 Al, 13 C) determined for a monomeric trialkylalane. In addition, the coupling constants were calculated by DFT methods (B 3 LYP) using the 6-311+G(d,p) basis set. The  1 H,  13 C and  27 Al NMR spectra of lithium tetra(tert-butyl)alanate, Li[AlBu t  4 ], were measured under various conditions. Ion-pair separation in THF revealed the expected patterns for  27 Al- 13 C spin-spin coupling across one and two bonds as well as for the three-bond  27 Al- 1 H spin-spin coupling.

zeitschrift für naturforschung b

Spin-Spin Coupling Constants  1 J( 27 Al, 13 C) and  1 J( 13 C, 11 B) in Comparable Organoaluminum and -boron Compounds. NMR Spectroscopy of Lithium Tetra(tert-butyl)alanate