scholarly journals Computational searches for crystal structures of dioxides of group 14 elements (CO2, SiO2, GeO2) under ultrahigh pressure

RSC Advances ◽  
2020 ◽  
Vol 10 (37) ◽  
pp. 22156-22163
Author(s):  
Hitoshi Nabata ◽  
Makito Takagi ◽  
Kenichiro Saita ◽  
Satoshi Maeda
Keyword(s):  
Crystal Structures ◽  
Ultrahigh Pressure ◽  
Group 14 ◽  
Effect Of Pressure ◽  
Group 14 Elements

In this study, we focused on the effect of pressure on the crystal structures of dioxides of group 14 elements, i.e. SiO2, GeO2, and CO2.

On the charge transfer between conventional cations: the structures of ternary oxides and chalcogenides of alkali metals

2012 ◽  
Vol 68 (4) ◽  
pp. 364-377
Author(s):  
Angel Vegas
Keyword(s):  
Charge Transfer ◽  
Alkali Metal ◽  
Crystal Structures ◽  
Alkali Metals ◽  
Group 14 ◽  
Zintl Phases ◽  
Partial Structures ◽  
Alkali Atoms ◽  
Group 14 Elements ◽  
Ternary Oxides

The structures of ternary oxides and chalcogenides of alkali metals are dissected in light of the extended Zintl–Klemm concept. This model, which has been successfully extended to other compounds different to the Zintl phases, assumes that crystal structures can be better understood if the cation substructures are contemplated as Zintl polyanions. This implies the occurrence of charge transfer between cations, even if they are of the same kind. In this article, the charge transfer between cations is even more illustrative because the two alkali atoms have different electronegativity, so that the less electropositive alkali metal and the O/S atom always form skeletons characteristic of the group 14 elements. Thus, partial structures of the zincblende-, wurtzite-, PbO- and SrAl2-type are found in the oxides/sulfides. In this work, such an interpretation of the structures remains at a topological level. The analysis also shows that this interpretation is complementary to the model developed by Andersson and Hyde which contemplates the structures as the intergrowth of structural slabs of more simple compounds.

Weak interactions induce asymmetry in the crystal structures of triaryl derivatives of group 14 elements

2002 ◽  
Vol 26 (4) ◽  
pp. 457-461 ◽  
Author(s):  
Paul D. Prince ◽  
G. Sean McGrady ◽  
Jonathan W. Steed
Keyword(s):  
Crystal Structures ◽  
Weak Interactions ◽  
Group 14 ◽  
Group 14 Elements ◽  
Derivatives Of

ChemInform Abstract: Activation of Phosphorus by Group 14 Elements in Low Oxidation States.

ChemInform ◽  
2012 ◽  
Vol 43 (23) ◽  
pp. no-no
Author(s):  
Shabana Khan ◽  
Sakya S. Sen ◽  
Herbert W. Roesky
Keyword(s):  
Oxidation States ◽  
Group 14 ◽  
Group 14 Elements

ChemInform Abstract: Metallocanes of Group 14 Elements. Part 2. Derivatives of Tin

ChemInform ◽  
2008 ◽  
Vol 39 (8) ◽  
Author(s):  
A. A. Selina ◽  
S. S. Karlov ◽  
E. Kh. Lermontova ◽  
G. S. Zaitseva
Keyword(s):  
Group 14 ◽  
Group 14 Elements ◽  
Derivatives Of

scholarly journals Homoleptic low-valent polyazides of group 14 elements

2015 ◽  
Vol 51 (35) ◽  
pp. 7435-7438 ◽  
Author(s):  
Benjamin Peerless ◽  
Theo Keane ◽  
Anthony J. H. M. Meijer ◽  
Peter Portius
Keyword(s):  
Group 14 ◽  
Group 14 Elements ◽  
Low Valent

Combining low valent group 14 coordination centres with azido ligands results in stable E(N3)3−anions.

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