Concepedia

Decameric and Dodecameric Sodium Amides and an Organosodium Amide with Stack Structures: [Na<sub>10</sub> (NMe<sub>2</sub>)<sub>10</sub>(tmeda)<sub>4</sub>],|Na<sub>12</sub>(NMe<sub>2</sub>)<sub>12</sub>(tmeda)<sub>4</sub>|, and [Na<sub>12</sub>(NMe<sub>2</sub>)<sub>10</sub>(CH<sub>2</sub>C<sub>6</sub>H<sub>4</sub>Me)<sub>2</sub>(tmeda)<sub>4</sub>]

Nis Peter Lorenzen, Jürgen Kopf, F. Olbrich, Uwe Schümann

Angewandte Chemie International Edition in English · 1990 · 30 citations · 6 references

DOI

Concepts

Abstract

The oligomeric sodiumamides 1–3 , which were formed during attempts to metalate hydrocarbons with n ‐butylsodium in the presence of teteramethylethylenediamine, have stacked ring structures. Correspondingly structured lithium amides are not known; rather, in this case ladder structures should be preferred. equation image

References

6

Some computer drawings of molecular and solid-state structures

E. Keller · Journal of Applied Crystallography · 1989 · 103 citations

, , +16

Ladder structures in lithium amide chemistry: syntheses, solid-state, and solution structures of donor-deficient lithium pyrrolidide complexes, [cyclic] {[H2C(CH2)3NLi]3.cntdot.PMDETA}2 and [cyclic] {[H2C(CH2)3NLi]2.cntdot.TMEDA}2, and ab initio MO calculations probing ring vs ladder vs stack structural preferences

David R. Armstrong, Donald Barr, W. Clegg et al. · Journal of the American Chemical Society · 1989 · 101 citations

, , +8

The first structural characterization of a dimeric lithium ketone enolate-LDA complex

Paul G. Williard, Mark J. Hintze · Journal of the American Chemical Society · 1987 · 100 citations

, , +5

n-Butylsodium: The preparation, properties and NMR spectra of a hydrocarbon- and tetrahydrofuran-soluble reagent

Christian Schade, Walter Bauer, Paul von Ragué Schleyer · Journal of Organometallic Chemistry · 1985 · 89 citations

, , +5

X‐Ray Structure Analysis of α‐Lithiophenylacetonitrile · Lithium Diisopropyl amide· 2 Tetramethylethylenediamine—a “Quasi‐Dianion Complex”

Wolfgang Zarges, Michael Marsch, Klaus Harms et al. · Angewandte Chemie International Edition in English · 1989 · 66 citations

, , +10