Commercially available N-oxide (2-mercaptopyridine-N-oxide) is used as a ligand instead of an oxidizing agent to stabilize the compounds of main group elements in low-valent states. The isolated compounds [(C5H4NOS)2Sn (), (C5H4NOS)SnCl () and (C5H4NOS)GeCl ()] are the first structurally characterized examples of O,S-heterocyclic stannylenes and germylenes with interesting bonding features. Further, the reaction of compound with SbCl3 afforded the rare dichlorodiantimony oxide [{(C5H4NOS)SbCl}2O] () unprecedentedly.
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http://dx.doi.org/10.1039/c6dt01013j | DOI Listing |
Dalton Trans
December 2024
Institute of Chemistry, Carl von Ossietzky University Oldenburg, Carl von Ossietzky-Str. 9-11, D 26129 Oldenburg, Federal Republic of Germany, European Union.
The synthesis of an anionic [Ge,N]-bidentate ligand based on the combination of an amidopyridinato group with an anionic germolide ring is reported. The potential of the germolide part of this ligand to switch between η-( Ge) and η-( CGe) coordination modes makes this ligand an interesting synthetic target. Salt metathesis reactions of the potassium salt of this ligand with GeCl dioxane and SnCl allow the synthesis of bis-germolyl-substituted germylenes and stannylenes with the tetrel atoms in a distorted square pyramidal coordination environment.
View Article and Find Full Text PDFChemistry
December 2024
Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
Reactions of a m-terphenylhydridostannylene with β-diketiminato magnesium and calcium hydrides provide bis-μ-hydrido species, the heterobimetallic constitutions of which are maintained after the addition of THF donor solvent. In both cases, reactions with hex-1-ene result in the formation of tetravalent organostannyl alkaline earth derivatives. Whereas the magnesium reagent undergoes facile twofold addition, the calcium-centered process is arrested after a single alkene reduction event.
View Article and Find Full Text PDFNat Commun
November 2024
Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, 610064, Chengdu, People's Republic of China.
Heavier group 14 carbene analogues, exhibiting transition-metal-like behavior, display remarkable capability for small molecule activation and coordination chemistry. However, their application in redox catalysis remains elusive. In this paper, we report the synthesis and isolation of a stannylene with carbodiphosphorane ligand.
View Article and Find Full Text PDFChem Commun (Camb)
September 2024
School of Chemistry, Monash University, Melbourne, PO Box 23, Victoria, 3800, Australia.
An N-heterocyclic stannylene :Sn(NON) (NON = [O(SiMeNAd)], Ad = 1-adamantyl), reacts rapidly with 2,4,6-tricyclohexylphenyl azide (TCHP)N, affording a stannaimine, (NON)SnN(TCHP). Solutions of (NON)SnN(TCHP) react immediately with carbon dioxide (CO) to give a [2+2]-cycloaddition product, which, upon heating, subsequently engages in a metathesis process to give [Sn(NON)(μ-O)] and the bulky isocyanate, (TCHP)NCO.
View Article and Find Full Text PDFChem Commun (Camb)
September 2024
Inorganic Chemistry and Catalysis Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune 411008, India.
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