Publication detail

Intramolecularly Coordinated 2-Iminomethylphenyltellurium Compounds

Authors: Hejda Martin | Lork Enno | Mebs Stefan | Dostál Libor | Beckmann Jens

Year: 2017

Type of publication: článek v odborném periodiku

Name of source: European Journal of Inorganic Chemistry

Publisher name: Wiley-VCH

Place: Weinheim

Page from-to: 3435-3445

Titles:

Language	Name	Abstract	Keywords
cze	Intramolekulárně koordinované 2-Iminomethylphenyltellurnaté sloučeniny	Byly připraveny Intramolekulárně koordinované 2-Iminomethylphenyltellurnaté sloučeniny
eng	Intramolecularly Coordinated 2-Iminomethylphenyltellurium Compounds	Procedures for the synthesis of 2-(tBuNCH)-C6H4Te(S2CNEt2) (1a), 2-(2', 6'-iPr(2)C(6)H(3)NCH) C6H4Te(S2CNEt2) (1b), [2-(tBuNCH) C6H4](2)Te (2a), 2-(tBuNCH)C6H4TeCl (3a), and 2(tBuNCH) C6H4TeCl3 (4a) have been developed. Compounds 1a-4a possess 2-iminomethylphenyl groups that provide intramolecular N donation to the Te atoms, which was investigated by multinuclear NMR spectroscopy and X-ray crystallography. The Te-N bond lengths increase in the order 3a [2.203(2) angstrom] < 4a [2.286(1) angstrom] < 1b [2.337(2) angstrom] < 1a [2.407(2) angstrom] < 2a [2.688(2) angstrom]. The nature of these bonds, which span a wide range from weak to strongly dative, was computationally analyzed for 1a-4a by means of DFT calculations using real-space bonding indicators derived from the atoms-in-molecules (AIM), electron localizability indicator (ELI-D), and noncovalent interactions (NCI) indicator toolkits. The analysis of the electrostatic potentials (ESPs) of proper fragments revealed considerable sigma-hole bond contributions in 3 and 4.	Tellurium; Intramolecular coordination; Density functional calculations; Real-space bond indicators; Structure elucidation

Search