Publication

Neue 13C-spektroskopische Untersuchungen zur Struktur von Allylmetall-Verbindungen

Manfred Schlosser
1981
Journal Articles

Abstract

High-resoln. 13C NMR spectra of terminally monodeuterated alkali metal and alk. earth metal allyl compds. confirm earlier structure assignments: allylmagnesium bromide exists in a s-covalent structure, which rapidly and reversibly goes over into its metallomeric mirror-image; allyllithium forms a distorted p-complex; allylpotassium and allylcesium have the shape of perfectly sym. or slightly asym. p-complexes. No NMR spectroscopic evidence is found in THF soln. for the presence of aggregates and mixed aggregates resulting from dimerization or oligomerization of monomeric allylmetal species. [on SciFinder (R)]

Official source

https://infoscience.epfl.ch/entities/publication/a3e24043-56de-49bd-8154-885900162cff

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Manfred Schlosser
1981
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/a3e24043-56de-49bd-8154-885900162cff

About this result

Related concepts (10)

Covalent bond

A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs. The stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding. For many molecules, the sharing of electrons allows each atom to attain the equivalent of a full valence shell, corresponding to a stable electronic configuration. In organic chemistry, covalent bonding is much more common than ionic bonding.

Coordinate covalent bond

In coordination chemistry, a coordinate covalent bond, also known as a dative bond, dipolar bond, or coordinate bond is a kind of two-center, two-electron covalent bond in which the two electrons derive from the same atom. The bonding of metal ions to ligands involves this kind of interaction. This type of interaction is central to Lewis acid–base theory. Coordinate bonds are commonly found in coordination compounds. Coordinate covalent bonding is ubiquitous.

Coordination complex

A coordination complex is a chemical compound consisting of a central atom or ion, which is usually metallic and is called the coordination centre, and a surrounding array of bound molecules or ions, that are in turn known as ligands or complexing agents. Many metal-containing compounds, especially those that include transition metals (elements like titanium that belong to the periodic table's d-block), are coordination complexes. Coordination complexes are so pervasive that their structures and reactions are described in many ways, sometimes confusingly.

Related publications (1)

Neue 13C-spektroskopische Untersuchungen zur Struktur von Allylmetall-Verbindungen

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Role of π-Acceptor Effects in Controlling the Lability of Novel Monofunctional Pt(II) and Pd(II) Complexes: Crystal Structure of [Pt(tripyridinedimethane)Cl]Cl