The Sila-Explosives Si(CH<sub>2</sub>N<sub>3</sub>)<sub>4</sub> and Si(CH<sub>2</sub>ONO<sub>2</sub>)<sub>4</sub>: Silicon\nAnalogues of the Common Explosives Pentaerythrityl\nTetraazide, C(CH<sub>2</sub>N<sub>3</sub>)<sub>4</sub>, and Pentaerythritol Tetranitrate,\nC(CH<sub>2</sub>ONO<sub>2</sub>)<sub>4</sub>
Thomas M. Klapötke (711234)Burkhard Krumm (1580941)Rainer Ilg (2490280)Dennis Troegel (2126785)Reinhold Tacke (1561765)
Abstract
The reaction of tetrakis(chloromethyl)silane, Si(CH<sub>2</sub>Cl)<sub>4</sub>, with sodium azide afforded tetrakis(azidomethyl)silane (sila-pentaerythrityl tetraazide, Si(CH<sub>2</sub>N<sub>3</sub>)<sub>4</sub> (<b>1b</b>)). Nitration of tetrakis(hydroxymethyl)silane, Si(CH<sub>2</sub>OH)<sub>4</sub>, with nitric acid resulted in the formation of tetrakis(nitratomethyl)silane (sila-pentaerythritol\ntetranitrate, Si(CH<sub>2</sub>ONO<sub>2</sub>)<sub>4</sub> (<b>2b</b>)). Compounds <b>1b</b> and <b>2b</b> are extremely shock-sensitive materials and very\ndifficult to handle. Spectroscopic data were obtained as good as sensitivity and safety allowed for\numambiguous identification. Quantum chemical calculations (DFT) of the C/Si pairs C(CH<sub>2</sub>OH)<sub>4</sub>/Si(CH<sub>2</sub>OH)<sub>4</sub>, <b>1a</b>/<b>1b</b>, and <b>2a</b>/<b>2b</b> regarding the structures and electronic populations were performed.
Metrics
Topics
Related Documents
Synthesis of the Multifunctional (Chloromethyl)silanes\nCl<sub>2</sub>Si(CH<sub>2</sub>Cl)<sub>2</sub>, (MeO)<sub>2</sub>Si(CH<sub>2</sub>Cl)<sub>2</sub>, RSi(CH<sub>2</sub>Cl)<sub>3</sub> (R =\n2,4,6-Trimethoxyphenyl), ClSi(CH<sub>2</sub>Cl)<sub>3</sub>, MeOSi(CH<sub>2</sub>Cl)<sub>3</sub>,\nSi(CH<sub>2</sub>Cl)<sub>4</sub>, and ClCH<sub>2</sub>CH<sub>2</sub>Si(CH<sub>2</sub>Cl)<sub>3</sub><sup>§</sup>
Jürgen O. Daiss (2649646)Katrin A. Barth (2704345)Christian Burschka (1724161)Patrick Hey (2704354)Rainer Ilg (2490280)Karsten Klemm (2704351)Ingo Richter (2703022)Stephan A. Wagner (2704348)Reinhold Tacke (1561765)
Optical Absorption Spectra of Mn<sup>2+</sup> in of (C<sub>6</sub>H<sub>5</sub>CH<sub>2</sub>CH<sub>2</sub>NH<sub>3</sub>)<sub>2</sub>-MnCl<sub>4</sub> and (NH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>NH<sub>2</sub>)<sub>2</sub>-MnCl<sub>4</sub> Hybrid Compounds
Muneer Aziz SalehAgustinus Agung NugrohoKadek DewiA.R. SupandiDjulia OnggoHenning KühnP. H. M. van Loosdrecht
Hydrothermal Synthesis and Structural\nCharacterization of Three Organically Templated\nTitanium Phosphates: Ti<sub>2</sub>(HPO<sub>4</sub>)<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>·C<sub>2</sub>N<sub>2</sub>H<sub>10</sub>,\nTi<sub>3</sub>(H<sub>2</sub>PO<sub>4</sub>)(HPO<sub>4</sub>)<sub>3.5</sub>(PO<sub>4</sub>)<sub>2</sub>·C<sub>2</sub>N<sub>2</sub>H<sub>10</sub>, and\nTi<sub>7</sub>(HPO<sub>4</sub>)<sub>6</sub>(PO<sub>4</sub>)<sub>6</sub>·C<sub>3</sub>N<sub>2</sub>H<sub>12</sub>
Yunling Liu (1420054)Zhan Shi (704217)Yunlong Fu (1536427)Wei Chen (23863)Baozong Li (1621120)Jia Hua (410225)Wuyang Liu (2953659)Feng Deng (553812)Wenqin Pang (2537944)
Simultaneous Multiphase Flash and Stability Analysis\nCalculations Including Solid CO<sub>2</sub> for CO<sub>2</sub>–CH<sub>4</sub>, CO<sub>2</sub>–CH<sub>4</sub>–N<sub>2</sub>, and CO<sub>2</sub>–CH<sub>4</sub>–N<sub>2</sub>–O<sub>2</sub> Mixtures
Giorgia De Guido (11371930)Elvira Spatolisano (11371933)
Manganese and Cesium Derivatives of the Bulky\nBidentate Ligand C(SiMe<sub>3</sub>)<sub>2</sub>SiMe<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>Me<sub>2</sub>Si(Me<sub>3</sub>Si)<sub>2</sub>C.\nCrystal Structures of Li(THF)<sub>2.75</sub>(Et<sub>2</sub>O)<sub>0.25</sub>(μ-Cl)-\nMnC(SiMe<sub>3</sub>)<sub>2</sub>SiMe<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>Me<sub>2</sub>Si(Me<sub>3</sub>Si)<sub>2</sub>C and\n(C<sub>6</sub>H<sub>6</sub>)<sub>3</sub>CsC(SiMe<sub>3</sub>)<sub>2</sub>SiMe<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>Me<sub>2</sub>Si(Me<sub>3</sub>Si)<sub>2</sub>CCs(C<sub>6</sub>H<sub>6</sub>)<sub>3</sub>
Colin Eaborn (2968656)Peter B. Hitchcock (2009605)J. David Smith (791436)Suobo Zhang (2010139)William Clegg (1265970)Keith Izod (1580347)Paul O'Shaughnessy (2961582)