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Isolation and Reactivity of an Antiaromatic s-Block Metal Compound.

ABSTRACT: The concepts of aromaticity and antiaromaticity have a long history, and countless demonstrations of these phenomena have been made with molecules based on elements from the p, d, and f blocks of the periodic table. In contrast, the limited oxidation-state flexibility of the s-block metals has long stood in the way of their participation in sophisticated ?-bonding arrangements, and truly antiaromatic systems containing s-block metals are altogether absent or remain poorly defined. Using spectroscopic, structural, and computational techniques, we present herein the synthesis and authentication of a heterocyclic compound containing the alkaline earth metal beryllium that exhibits significant antiaromaticity, and detail its chemical reduction and Lewis-base-coordination chemistry.

SUBMITTER: Roy DK

PROVIDER: S-EPMC7898526 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature

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Isolation and Reactivity of an Antiaromatic s-Block Metal Compound.

Roy Dipak Kumar DK Tröster Tobias T Fantuzzi Felipe F Dewhurst Rian D RD Lenczyk Carsten C Radacki Krzysztof K Pranckevicius Conor C Engels Bernd B Braunschweig Holger H

Angewandte Chemie (International ed. in English) 20201227 7

The concepts of aromaticity and antiaromaticity have a long history, and countless demonstrations of these phenomena have been made with molecules based on elements from the p, d, and f blocks of the periodic table. In contrast, the limited oxidation-state flexibility of the s-block metals has long stood in the way of their participation in sophisticated π-bonding arrangements, and truly antiaromatic systems containing s-block metals are altogether absent or remain poorly defined. Using spectros ...[more]

PMID: 33210400

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