Planar pentacoordinate silicon and germanium atoms

2020 ◽  
Vol 56 (89) ◽  
pp. 13772-13775 ◽  
Author(s):  
Meng-hui Wang ◽  
Xue Dong ◽  
Zhong-hua Cui ◽  
Mesías Orozco-Ic ◽  
Yi-hong Ding ◽  
...  
Keyword(s):  
Global Minimum ◽  
Group 14 ◽  
Pentacoordinate Silicon ◽  
Silicon And Germanium

The global minimum of XMg4Y− (X = Si, Ge; Y = In, Tl) and SiMg3In2 contains a planar pentacoordinate atom of group 14 other than carbon.

Pentacoordinate silicon and germanium derivatives: molecular structure

1981 ◽  
Vol 205 (1) ◽  
pp. C1-C3 ◽  
Author(s):  
C. Breliere ◽  
F. Carre ◽  
R.J.P. Corriu ◽  
A. De Saxce ◽  
M. Poirier ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Pentacoordinate Silicon ◽  
Silicon And Germanium

Metallocanes of Group 14 Elements. Part 1. Derivatives of Silicon and Germanium

ChemInform ◽  
2007 ◽  
Vol 38 (36) ◽  
Author(s):  
A. A. Selina ◽  
S. S. Karlov ◽  
G. S. Zaitseva
Keyword(s):  
Group 14 ◽  
Group 14 Elements ◽  
Silicon And Germanium ◽  
Derivatives Of

scholarly journals The Bicyclo[2.2.2]octane Motif: A Class of Saturated Group 14 Quantum Interference Based Single-molecule Insulators

2018 ◽  
Author(s):  
Marc H. Garner ◽  
Mads Koerstz ◽  
Jan H. Jensen ◽  
Gemma C. Solomon
Keyword(s):  
Electron Transport ◽  
Single Molecule ◽  
High Throughput Screening ◽  
Quantum Interference ◽  
Chemical Space ◽  
Group 14 ◽  
Conjugated Molecules ◽  
Clear Cut ◽  
Electron Transport Properties ◽  
Silicon And Germanium

The electronic transmission through σ-conjugated molecules can be fully suppressed by destructive quantum interference, which makes them potential candidates for single-molecule insulators. The first molecule with clear suppression of the single-molecule conductance due to σ-interference was recently found in the form of a functionalized bicyclo[2.2.2]octasilane. Here we continue the search for potential single-molecule insulators based on saturated group 14 molecules. Using a high-throughput screening approach, we assess the electron transport properties of the bicyclo[2.2.2]octane class by systematically varying the constituent atoms between carbon, silicon, and germanium, thus exploring the full chemical space of 771 different molecules. The majority of the molecules in the bicyclo[2.2.2]octane class are found to be highly insulating molecules. Though the all-silicon molecule is a clear-cut case of σ-interference, it is not unique within its class and there are many potential molecules that we predict to be more insulating. The finding of this class of quantum interference based single-molecule insulators indicates that a broad range of highly insulating saturated group 14 molecules are likely to exist

scholarly journals Zintl Phases as Reactive Precursors for Synthesis of Novel Silicon and Germanium-Based Materials

Materials ◽  
2019 ◽  
Vol 12 (7) ◽  
pp. 1139 ◽  
Author(s):  
Matt Beekman ◽  
Susan Kauzlarich ◽  
Luke Doherty ◽  
George Nolas
Keyword(s):  
Crystal Structure ◽  
Intermetallic Compounds ◽  
Theoretical Work ◽  
Group 14 ◽  
Zintl Phases ◽  
Significant Challenge ◽  
Group 14 Elements ◽  
Extended Solids ◽  
Silicon And Germanium ◽  
Synthetic Approaches

Recent experimental and theoretical work has demonstrated significant potential to tune the properties of silicon and germanium by adjusting the mesostructure, nanostructure, and/or crystalline structure of these group 14 elements. Despite the promise to achieve enhanced functionality with these already technologically important elements, a significant challenge lies in the identification of effective synthetic approaches that can access metastable silicon and germanium-based extended solids with a particular crystal structure or specific nano/meso-structured features. In this context, the class of intermetallic compounds known as Zintl phases has provided a platform for discovery of novel silicon and germanium-based materials. This review highlights some of the ways in which silicon and germanium-based Zintl phases have been utilized as precursors in innovative approaches to synthesize new crystalline modifications, nanoparticles, nanosheets, and mesostructured and nanoporous extended solids with properties that can be very different from the ground states of the elements.

Dismutational and Global-Minimum Isomers of Heavier 1,4-Dimetallatetrasilabenzenes of Group 14

2014 ◽  
Vol 53 (13) ◽  
pp. 3514-3518 ◽  
Author(s):  
Anukul Jana ◽  
Volker Huch ◽  
Michal Repisky ◽  
Raphael J. F. Berger ◽  
David Scheschkewitz
Keyword(s):  
Global Minimum ◽  
Group 14

Metallocanes of group 14 elements. 1. Derivatives of silicon and germanium. (Review)

2006 ◽  
Vol 42 (12) ◽  
pp. 1518-1556 ◽  
Author(s):  
A. A. Selina ◽  
S. S. Karlov ◽  
G. S. Zaitseva
Keyword(s):  
Group 14 ◽  
Group 14 Elements ◽  
Silicon And Germanium ◽  
Derivatives Of
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