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Design, Synthesis, Characterization and Catalytic Application of Silyliumylidene Ions

Total Cost €


EC-Contrib. €






 SILION project word cloud

Explore the words cloud of the SILION project. It provides you a very rough idea of what is the project "SILION" about.

lone    accessible    carbenes    center    organic    valence    criteria    charged    silyliumylidene    strikingly    silion    building    orbital    group    characterization    strategy    herein    possess    corresponding    carbene    anticipated    heterocyclic    stg    sites    transition    acidic    central    electronic    positively    reagents    erc    2014    dichlorosilane    straightforward    valent    cationic    investigation    silylium    reactive    facile    pair    organosilicon    character    synthesis    excellent    species    performance    ion    electron    substituents    outlines    pot    equivalents    consisting    introduction    versatile    lewis    atom    catalytic    activation    reactivity    silylene    fulfil    toward    reaction    catalysts    deficient    serve    sigma    orbitals    small    potentially    donor    silylenes    molecules    innovative    thanks    vacant    acceptor    electrons    pi    silicon    ligands    synthesized    combined    steric    carbenium    metals    compounds    ions    block    bear    denoted   

Project "SILION" data sheet

The following table provides information about the project.


Organization address
address: Arcisstrasse 21
postcode: 80333

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Total cost 1˙499˙942 €
 EC max contribution 1˙499˙942 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2014-STG
 Funding Scheme ERC-STG
 Starting year 2015
 Duration (year-month-day) from 2015-12-01   to  2020-11-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

This ERC-StG 2014 proposal, SILION, outlines a strategy for the one-pot synthesis, characterization, and reactivity investigation of a positively charged, electron-deficient, highly Lewis acidic, cationic silicon(II) species, denoted “silyliumylidene ions”. Silyliumylidene ion has only four valence electrons, consisting of a lone pair of electrons and two vacant orbitals on the central silicon atom. It will be expected to bear the best combined character of both silylenes as silicon analogue of carbene and silylium ions as silicon analogue of carbenium ions. The program described herein is also aimed at the development of silyliumylidene ion as novel catalysts based on main group elements. The proposed silyliumylidene ions should fulfil the following criteria: a) compounds can be synthesized by a facile one-pot reaction of the corresponding dichlorosilane with two equivalents of N-heterocyclic carbenes, b) silyliumylidene ions will potentially possess three reactive sites including (i) a lone pair at the silicon center, (ii) p-orbital at the silicon center, and (iii) N-heterocyclic carbenes, c) thanks to their strong sigma-donor as well as pi-acceptor ability, the highly reactive silyliumylidene ions are expected to serve as innovative reagents for activation of organic small molecules, excellent catalysts, and strikingly versatile coordination ligands toward transition metals. The target of this proposal is the introduction of facile accessible silyliumylidene ions, which are combined the best properties of silylene and silylium ions, and development of its reactivity and catalytic activity. The synthesis of silyliumylidene ions is straightforward and should allow the investigation of electronic and steric properties of the substituents and N-heterocyclic carbenes. It is anticipated that novel silyliumylidene ions can be used for a promising new building block for low-valent organosilicon compounds and high-performance catalysts.


year authors and title journal last update
List of publications.
2016 Tatsumi Ochiai, Tibor Szilvási, Daniel Franz, Elisabeth Irran, Shigeyoshi Inoue
Isolation and Structure of Germylene-Germyliumylidenes Stabilized by N-Heterocyclic Imines
published pages: 11619-11624, ISSN: 1433-7851, DOI: 10.1002/anie.201605636
Angewandte Chemie International Edition 55/38 2019-05-28
2018 Amelie Porzelt, Julia Schweizer, Ramona Baierl, Philipp Altmann, Max Holthausen, Shigeyoshi Inoue
S–H Bond Activation in Hydrogen Sulfide by NHC-Stabilized Silyliumylidene Ions
published pages: 54, ISSN: 2304-6740, DOI: 10.3390/inorganics6020054
Inorganics 6/2 2019-05-27
2016 Daniel Franz, Lorenz Sirtl, Alexander Pöthig, Shigeyoshi Inoue
Aluminum Hydrides Stabilized by N-Heterocyclic Imines as Catalysts for Hydroborations with Pinacolborane
published pages: 1245-1250, ISSN: 0044-2313, DOI: 10.1002/zaac.201600313
Zeitschrift für anorganische und allgemeine Chemie 642/22 2019-05-27
2017 Debotra Sarkar, Daniel Wendel, Syed Usman Ahmad, Tibor Szilvási, Alexander Pöthig, Shigeyoshi Inoue
Chalcogen-atom transfer and exchange reactions of NHC-stabilized heavier silaacylium ions
published pages: 16014-16018, ISSN: 1477-9226, DOI: 10.1039/C7DT03998K
Dalton Transactions 46/46 2019-05-27
2017 Prasenjit Bag, Syed Usman Ahmad, Shigeyoshi Inoue
Synthesis and Reactivity of Functionalized Silicon(II) Compounds: Iminosilylene, Phosphinosilylene, Hydrosilylene, and Related Compounds
published pages: 255-271, ISSN: 0009-2673, DOI: 10.1246/bcsj.20160284
Bulletin of the Chemical Society of Japan 90/3 2019-05-27
2018 Daniel Franz, Tibor Szilvási, Alexander Pöthig, Franziska Deiser, Shigeyoshi Inoue
Three-Coordinate Boron(III) and Diboron(II) Dications
published pages: 4283-4288, ISSN: 0947-6539, DOI: 10.1002/chem.201800609
Chemistry - A European Journal 24/17 2019-05-27
2016 Daniel Franz, Shigeyoshi Inoue
Advances in the development of complexes that contain a group 13 element chalcogen multiple bond
published pages: 9385-9397, ISSN: 1477-9226, DOI: 10.1039/C6DT01413E
Dalton Trans. 45/23 2019-05-27
2016 Tatsumi Ochiai, Tibor Szilvási, Shigeyoshi Inoue
Facile Access to Stable Silylium Ions Stabilized by N-Heterocyclic Imines
published pages: 1155, ISSN: 1420-3049, DOI: 10.3390/molecules21091155
Molecules 21/9 2019-05-27
2016 Tatsumi Ochiai, Daniel Franz, Shigeyoshi Inoue
Applications of N-heterocyclic imines in main group chemistry
published pages: 6327-6344, ISSN: 0306-0012, DOI: 10.1039/C6CS00163G
Chem. Soc. Rev. 45/22 2019-05-27
2017 Vitaly Nesterov, Nora C. Breit, Shigeyoshi Inoue
Advances in Phosphasilene Chemistry
published pages: 12014-12039, ISSN: 0947-6539, DOI: 10.1002/chem.201700829
Chemistry - A European Journal 23/50 2019-05-27
2018 Catherine Weetman, Shigeyoshi Inoue
The Road Travelled: After Main-Group Elements as Transition Metals
published pages: 4213-4228, ISSN: 1867-3880, DOI: 10.1002/cctc.201800963
ChemCatChem 10/19 2019-03-07
2018 Philipp Frisch, Shigeyoshi Inoue
Coinage metal complexes of NHC-stabilized silyliumylidene ions
published pages: 13658-13661, ISSN: 1359-7345, DOI: 10.1039/c8cc07754a
Chemical Communications 54/97 2019-03-07
2018 Vitaly Nesterov, Dominik Reiter, Prasenjit Bag, Philipp Frisch, Richard Holzner, Amelie Porzelt, Shigeyoshi Inoue
NHCs in Main Group Chemistry
published pages: 9678-9842, ISSN: 0009-2665, DOI: 10.1021/acs.chemrev.8b00079
Chemical Reviews 118/19 2019-03-07

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