Tetrel bonds between PhSiF3 /PhTH3 (T = Si, Ge, Sn) and H3 ZO (Z = N, P, As): A pentacoordinate silicon (IV) complex

2018 ◽  
Vol 118 (17) ◽  
pp. e25660 ◽  
Author(s):  
Hui-Li Xu ◽  
Jian-Bo Cheng ◽  
Hai-Bei Li ◽  
Xin Yang ◽  
Qing-Zhong Li
Keyword(s):  
Pentacoordinate Silicon ◽  
Tetrel Bonds

Synthesis and structural characterisation of neutral pentacoordinate silicon(iv) complexes with a tridentate dianionic N,N,S chelate ligand

2012 ◽  
Vol 41 (7) ◽  
pp. 2148-2162 ◽  
Author(s):  
Claudia Kobelt ◽  
Christian Burschka ◽  
Rüdiger Bertermann ◽  
C. Fonseca Guerra ◽  
F. Matthias Bickelhaupt ◽  
...  
Keyword(s):  
Chelate Ligand ◽  
Structural Characterisation ◽  
Pentacoordinate Silicon

Hypercoordinate Diorganosilanes Featuring an 〈ONO〉 Tridentate Ligand. A Surprising EquilibriumBetween Penta- and Tetracoordination

2007 ◽  
Vol 62 (2) ◽  
pp. 225-234 ◽  
Author(s):  
Jörg Wagler ◽  
Erica Brendler
Keyword(s):  
Solid State ◽  
Chloroform Solution ◽  
Tridentate Ligand ◽  
Precursor Molecule ◽  
Pentacoordinate Silicon ◽  
Shift Reaction

The reaction of the tridentate ligand-precursor molecule 1, o-HO-p-MeO-C6H3-C(Ph)=N-(o-C6H4)-OH, with diorganodichlorosilanes Me2SiCl2, Ph2SiCl2 and PhAllSiCl2 yields pentacoordinate silicon complexes R,R′Si[o-O-p-MeO-C6H3-C(Ph)=N-(o-C6H4)-O] (2a′: R, R′ = Me; 2b: R, R′ = Ph; 2c: R = Ph, R′ = All). 2b and 2c have pentacoordinate silicon atoms in the solid state as well as in chloroform solution. Surprisingly, for 2a an isomer 2a′ with Si-tetracoordination is preferred in the solid state, while the Si-pentacoordinated isomer 2a may dominate in solution. The hypercoordinate allylsilane 2c with a C=X→Si moiety is stable in solution and does not undergo a 1,3-allyl-shift-reaction.

Characterizing hydrogen and tetrel bonds in clusters of CO2 with carboxylic acids.

2021 ◽  
Author(s):  
Weixing Li ◽  
Sonia Melandri ◽  
Luca Evangelisti ◽  
Camilla Calabrese ◽  
Annalisa Vigorito ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carboxylic Acids ◽  
Quantum Chemical ◽  
Microwave Spectrum ◽  
Quantum Chemical Modeling ◽  
Chemical Modeling ◽  
Tetrel Bonds

The interaction between carbon dioxide and planar carboxylic acids has been investigated through the analysis of the microwave spectrum of the acrylic acid·CO2 complex and quantum chemical modeling of the...

Insight into the π-hole···π-electrons tetrel bonds between F2ZO (Z = C, Si, Ge) and unsaturated hydrocarbons

2017 ◽  
Vol 118 (8) ◽  
pp. e25521 ◽  
Author(s):  
Shaojie Shen ◽  
Yanli Zeng ◽  
Xiaoyan Li ◽  
Lingpeng Meng ◽  
Xueying Zhang
Keyword(s):  
Unsaturated Hydrocarbons ◽  
Tetrel Bonds ◽  
Insight Into

Strukturchemie von Verbindungen des pentakoordinierten Siliciums. Das Bis(ethylendioxy)methylsilan-Anion / Structural Studies of Pentacoordinate Silicon. The Bis(ethylenedioxy)methylsilane Anion

1982 ◽  
Vol 37 (2) ◽  
pp. 195-197 ◽  
Author(s):  
Dietmar Schomburg
Keyword(s):  
Hydrogen Bonds ◽  
Silicon Atom ◽  
Trigonal Bipyramid ◽  
Structural Studies ◽  
Space Group ◽  
Bond Lengths ◽  
Twofold Axis ◽  
Pentacoordinate Silicon ◽  
Pentacoordinate Silicon Atom

Abstract Hexamethylendiammonium-bis(ethylenedioxy)methylsilane crystallizes in the hexagonal space group P6122, Z = 6 with a= 11.902(1), c = 30.148(4) A. The structure was refined to R - 0.041 using 2281 independent reflections. The geometry around the pentacoordinate silicon atom is between a trigonal bipyramid and a square pyramid. Oeq-Si-Oeq 136.0(1)°, Oax-Si-Oax 161.7(1)°. The Si-Oax bond lengths are 1.749(2) and 1.769(2) A, the Si-Oeq 1.711(2) and 1.735(2) A, Si-Ceq 1.876(3) A. The compound forms strong N-H ··· O hydrogen bonds between cation and anion. The cation lies on a crystallographic twofold axis

scholarly journals Neutral Pentacoordinate Silicon Fluorides Derived from Amidinate, Guanidinate, and Triazapentadienate Ligands and Base-Induced Disproportionation of Si2Cl6to Stable Silylenes

2011 ◽  
Vol 50 (1) ◽  
pp. 358-364 ◽  
Author(s):  
Rajendra S. Ghadwal ◽  
Kevin Pröpper ◽  
Birger Dittrich ◽  
Peter G. Jones ◽  
Herbert W. Roesky
Keyword(s):  
Pentacoordinate Silicon

scholarly journals π-Hole Tetrel Bonds—Lewis Acid Properties of Metallylenes

Crystals ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 112
Author(s):  
Sławomir J. Grabowski
Keyword(s):  
Quantum Theory ◽  
Crystal Structures ◽  
Lewis Acid ◽  
Natural Bond Orbital ◽  
Database Search ◽  
Lewis Base ◽  
Atoms In Molecules ◽  
Acid Properties ◽  
Structural Database ◽  
Tetrel Bonds

The MP2/aug-cc-pVTZ calculations were performed on the dihalometallylenes to indicate their Lewis acid and Lewis base sites. The results of the Cambridge Structural Database search show corresponding and related crystal structures where the tetrel center often possesses the configuration of a trigonal bipyramid or octahedron. The calculations were also carried out on dimers of dichlorogermylene and dibromogermylene and on complexes of these germylenes with one and two 1,4-dioxide molecules. The Ge⋯Cl, Ge⋯Br, and Ge⋯O interactions are analyzed. The Ge⋯O interactions in the above mentioned germylene complexes may be classified as the π-hole tetrel bonds. The MP2 calculations are supported by the results of the Quantum Theory of Atoms in Molecules (QTAIM) and the Natural Bond Orbital (NBO) approaches.

Sign in / Sign up

Export Citation Format

Share Document