Nature of the heavy formal double bonds AsCh, SbCh and BiCh (Ch = S, Se, Te) in NCN-pincer supported arsinidene, stibinidene and bismuthinidene chalcogenides

Fabio Meyer; Arina Siumbeli; Libor Dostál; Emanuel Hupf; Jens Beckmann

doi:10.1039/D5SC03320A

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Nature of the heavy formal double bonds AsCh, SbCh and BiCh (Ch = S, Se, Te) in NCN-pincer supported arsinidene, stibinidene and bismuthinidene chalcogenides†

Fabio Meyer,^a Arina Siumbeli,^a Libor Dostál,

*^b Emanuel Hupf

*^a and Jens Beckmann

*^a

Author affiliations

* Corresponding authors

^a Institute for Inorganic Chemistry and Crystallography, University of Bremen, Germany
E-mail: emanuel.hupf@uni-bremen.de, j.beckmann@uni-bremen.de

^b Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentska, 573, Pardubice 532 10, Czech Republic
E-mail: libor.dostal@upce.cz

Abstract

The synthesis of arylpnictinidenes 2,6-(Ph₂PNMes)₂C₆H₃Pn based upon a novel bis(phosphine imine) NCN-pincer ligand is reported (Pn = As, Sb, Bi). The oxidation of 2,6-(Ph₂PNMes)₂C₆H₃Pn with sulfur, selenium and tellurium, respectively, afforded arylarsinidene chalcogenides 2,6-(Ph₂PNMes)₂C₆H₃AsCh, arylstibinidene chalcogenides 2,6-(Ph₂PNMes)₂C₆H₃SbCh and arylbismuthinidene chalcogenides 2,6-(Ph₂PNMes)₂C₆H₃BiCh, which can be formulated as containing terminal As [double bond, length as m-dash] Ch, SbCh and BiCh double bonds. Based on the complementary bonding analysis, the bonding situation is best described in terms of bipolar ⁺Pn–Ch⁻ single bonds (Ch = S, Se, Te).

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DOI: https://doi.org/10.1039/D5SC03320A
Article type: Edge Article
Submitted: 07 May 2025
Accepted: 17 Jul 2025
First published: 18 Jul 2025
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry

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Chem. Sci., 2025,16, 16232-16239

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Nature of the heavy formal double bonds AsCh, SbCh and BiCh (Ch = S, Se, Te) in NCN-pincer supported arsinidene, stibinidene and bismuthinidene chalcogenides

F. Meyer, A. Siumbeli, L. Dostál, E. Hupf and J. Beckmann, Chem. Sci., 2025, 16, 16232 DOI: 10.1039/D5SC03320A

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Chemical Science

Nature of the heavy formal double bonds AsCh, SbCh and BiCh (Ch = S, Se, Te) in NCN-pincer supported arsinidene, stibinidene and bismuthinidene chalcogenides†

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Nature of the heavy formal double bonds AsCh, SbCh and BiCh (Ch = S, Se, Te) in NCN-pincer supported arsinidene, stibinidene and bismuthinidene chalcogenides

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