Nature of Bonding in Donor-Acceptor Interactions Exemplified by Complexes of N-Heterocyclic Carbenes with 1,2,5-Telluradiazoles

Pushkarevsky, Nikolay A.; Petrov, Pavel A.; Grigoriev, Denis S.; Smolentsev, Anton I.; Lee, Lucia M.; Kleemiss, Florian; Salnikov, Georgy E.; Konchenko, Sergey N.; Vargas-Baca, Ignacio; Grabowsky, Simon; Beckmann, Jens; Zibarev, Andrey V. (2017). Nature of Bonding in Donor-Acceptor Interactions Exemplified by Complexes of N-Heterocyclic Carbenes with 1,2,5-Telluradiazoles. Chemistry - a European journal, 23(46), pp. 10987-10991. Wiley-VCH 10.1002/chem.201703018

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Comprehensive structural, spectroscopic, and quantum chemical analyses of new donor-acceptor complexes between N-heterocyclic carbenes and 1,2,5-telluradiazoles and a comparison with previously known complexes involving tellurenyl cations showed that the dative C-Te bonds cannot be solitarily described with only one Lewis formula. Canonical Lewis formulas that denote covalency and arrows emphasizing ionicity complement each other in varying extents. Evaluation of the relative weights of these resonance forms requires proper bonding description with a well-balanced toolbox of analytical methods. If for conciseness only, one resonance form is used, it must be the most significant one according to the analytical evaluation. If unclear, all significant resonance forms should be displayed.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Kleemiss, Florian and Grabowsky, Simon

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry

ISSN:

0947-6539

Publisher:

Wiley-VCH

Language:

English

Submitter:

Simon Grabowsky

Date Deposited:

06 Feb 2020 10:04

Last Modified:

06 Feb 2020 10:04

Publisher DOI:

10.1002/chem.201703018

BORIS DOI:

10.7892/boris.138427

URI:

https://boris.unibe.ch/id/eprint/138427

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