Reactivity of N-Heterocyclic Stannylenes: Oxidative Addition of Chalcogen Elements to a Chiral NH-Sn System

Kerry Flanagan; James Parish; Andrew Johnson

doi:10.3390/inorganics11080318

Reactivity of N-Heterocyclic Stannylenes: Oxidative Addition of Chalcogen Elements to a Chiral NH-Sn System

Kerry Flanagan, James Parish, Andrew Johnson

Research output: Contribution to journal › Article › peer-review

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Abstract

The reactivity of the racemic N-heterocyclic stannylene [{MeHCN(tBu)}Sn] (1) with the chalcogenide elements O₂, S, Se, and Te has been investigated. In the case of the reaction of 1 with molecular oxygen, the cyclic tristannoxane complex [{MeHCN(tBu)}₂Sn(μ-O)]₃ (3) was isolated and characterised. NMR studies (¹H, ¹³C, and ¹¹⁹Sn) show the formation of D₃- and C₂- symmetric assemblies. The reaction of 1 with S, Se, and Te, respectively, yielded the cyclo-distannachalcogenide complexes, [{MeHCN(tBu)}₂Sn(μ-E)]₃ (4: E = S, 5: E = Se, 6: E = Te), again with multinuclear NMR studies proving the formation of C₂- and C_s-symmetric assemblies. Single crystal X-ray diffraction studies have been used to elucidate the molecular structures of the products of oxidative addition, 3, 4, 5, and 6.

Original language	English
Article number	318
Number of pages	15
Journal	Inorganics
Volume	11
Issue number	8
Early online date	27 Jul 2023
DOIs	https://doi.org/10.3390/inorganics11080318
Publication status	Published - 31 Aug 2023

Bibliographical note

Funding: This research was funded by the University of Bath, Bath UK with a PhD studentship to K.R.F.

Data Availability Statement: The data presented in this study are available on request from the corresponding author.

Keywords

chalcogen
oxidative addition
stannylene

ASJC Scopus subject areas

Inorganic Chemistry

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title = "Reactivity of N-Heterocyclic Stannylenes: Oxidative Addition of Chalcogen Elements to a Chiral NH-Sn System",

abstract = "The reactivity of the racemic N-heterocyclic stannylene [{MeHCN(tBu)}Sn] (1) with the chalcogenide elements O2, S, Se, and Te has been investigated. In the case of the reaction of 1 with molecular oxygen, the cyclic tristannoxane complex [{MeHCN(tBu)}2Sn(μ-O)]3 (3) was isolated and characterised. NMR studies (1H, 13C, and 119Sn) show the formation of D3- and C2- symmetric assemblies. The reaction of 1 with S, Se, and Te, respectively, yielded the cyclo-distannachalcogenide complexes, [{MeHCN(tBu)}2Sn(μ-E)]3 (4: E = S, 5: E = Se, 6: E = Te), again with multinuclear NMR studies proving the formation of C2- and Cs-symmetric assemblies. Single crystal X-ray diffraction studies have been used to elucidate the molecular structures of the products of oxidative addition, 3, 4, 5, and 6.",

keywords = "chalcogen, oxidative addition, stannylene",

author = "Kerry Flanagan and James Parish and Andrew Johnson",

note = "Funding: This research was funded by the University of Bath, Bath UK with a PhD studentship to K.R.F. Data Availability Statement: The data presented in this study are available on request from the corresponding author.",

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AU - Flanagan, Kerry

AU - Parish, James

AU - Johnson, Andrew

N1 - Funding: This research was funded by the University of Bath, Bath UK with a PhD studentship to K.R.F. Data Availability Statement: The data presented in this study are available on request from the corresponding author.

PY - 2023/8/31

Y1 - 2023/8/31

N2 - The reactivity of the racemic N-heterocyclic stannylene [{MeHCN(tBu)}Sn] (1) with the chalcogenide elements O2, S, Se, and Te has been investigated. In the case of the reaction of 1 with molecular oxygen, the cyclic tristannoxane complex [{MeHCN(tBu)}2Sn(μ-O)]3 (3) was isolated and characterised. NMR studies (1H, 13C, and 119Sn) show the formation of D3- and C2- symmetric assemblies. The reaction of 1 with S, Se, and Te, respectively, yielded the cyclo-distannachalcogenide complexes, [{MeHCN(tBu)}2Sn(μ-E)]3 (4: E = S, 5: E = Se, 6: E = Te), again with multinuclear NMR studies proving the formation of C2- and Cs-symmetric assemblies. Single crystal X-ray diffraction studies have been used to elucidate the molecular structures of the products of oxidative addition, 3, 4, 5, and 6.

AB - The reactivity of the racemic N-heterocyclic stannylene [{MeHCN(tBu)}Sn] (1) with the chalcogenide elements O2, S, Se, and Te has been investigated. In the case of the reaction of 1 with molecular oxygen, the cyclic tristannoxane complex [{MeHCN(tBu)}2Sn(μ-O)]3 (3) was isolated and characterised. NMR studies (1H, 13C, and 119Sn) show the formation of D3- and C2- symmetric assemblies. The reaction of 1 with S, Se, and Te, respectively, yielded the cyclo-distannachalcogenide complexes, [{MeHCN(tBu)}2Sn(μ-E)]3 (4: E = S, 5: E = Se, 6: E = Te), again with multinuclear NMR studies proving the formation of C2- and Cs-symmetric assemblies. Single crystal X-ray diffraction studies have been used to elucidate the molecular structures of the products of oxidative addition, 3, 4, 5, and 6.

KW - chalcogen

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KW - stannylene

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DO - 10.3390/inorganics11080318

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ER -

Reactivity of N-Heterocyclic Stannylenes: Oxidative Addition of Chalcogen Elements to a Chiral NH-Sn System

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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