Search Results - "Wiberg, Nils"

Disilynes. III [1] A Relatively Stable Disilyne RSi≡SiR (R = SiMe(SitBu3)2) by Wiberg, Nils, Vasisht, Sham Kumar, Fischer, Gerd, Mayer, Peter

“…The disilyne R**Si≡SiR** (R** = SiMe(SitBu3)2), prepared as the first isolable and realtively stable silicon compound with a SiSi triple bond two years ago by…”
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Sterically overloaded supersilylated main group elements and main group element clusters by Wiberg, Nils

“…Supersilyl tBu 3Si behaves as a very bulky, chemically inert group. In fact, it exists (i) as an anion tBu 3Si − in supersilyl alkaline metals tBu 3SiM; (ii)…”
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Synthesis, Structure and Dehalogenation of the Disilene RClSi=SiClR [R = (tBu3Si)2MeSi] by Wiberg, Nils, Niedermayer, Wolfgang, Fischer, Gerd, Nöth, Heinrich, Suter, Max

“…The reaction of R*2MeSi−SiX2X′ (X/X′ = Cl/Br, Br/Cl) with NaR* (R* = supersilyl SitBu3) leads, probably via the silylenes R*2MeSi−SiX, to the…”
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Si8(SitBu3)6: A Hitherto Unknown Cluster Structure in Silicon Chemistry by Fischer, Gerd, Huch, Volker, Mayer, Peter, Vasisht, Sham Kumar, Veith, Michael, Wiberg, Nils

“…Inside out: Deiodination of R*3Si4I5 (R*=SitBu3) with NaR* affords the silicon compound Si8R*6. A Si2 dumbbell(Si1–Si2) is present in this novel cluster…”
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Wave propagation related to high-speed train: A scaled boundary FE-approach for unbounded domains by Ekevid, Torbjörn, Wiberg, Nils-Erik

“…Analysis of wave propagation in solid materials under moving loads is a topic of great interest in railway engineering. The objective of the present paper is…”
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Adaptive finite element procedures for linear and non-linear dynamics by Wiberg, Nils-Erik, Li, Xiangdong

“…This paper discusses implementation and adaptivity of the Discontinuous Galerkin (DG) finite element method as applied to linear and non‐linear structural…”
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Moving finite elements and dynamic vehicle interaction by Lane, Hakan, Kettil, Per, Wiberg, Nils-Erik

“…Elastic “shock” waves emanating from the wheel-rail interface of a train running at a speed close to one of the propagation velocities of the soil may cause…”
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Adaptive solid wave propagation—influences of boundary conditions in high-speed train applications by Ekevid, Torbjörn, Lane, Håkan, Wiberg, Nils-Erik

“…Wave propagation in solid materials is of great interest in many engineering applications. The fact that the area of interest changes with time creates a…”
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An adaptive fixed mesh method for modelling and simulating of unsteady two-phase flows with sharp physical interfaces by Sharif, Nahidh Hamid, Wiberg, Nils-Erik

“…We present in this paper a new computational method for simulation of two‐phase flow problems with moving boundaries and sharp physical interfaces. An adaptive…”
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Vehicle-track-underground modeling of rail induced wave propagation by Lane, Håkan, Ekevid, Torbjörn, Kettil, Per, Ching, Chun Yuen, Wiberg, Nils-Erik

“…A moving rail vehicle may cause propagating waves to the surroundings potentially leading to detrimental effects for the track construction, nuisances for the…”
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Synthesis and Crystal Structure of the Tetraaluminatetrahedrane Al4[Si(t-Bu)3]4, the Second Al4R4 Compound by Purath, Andreas, Dohmeier, Carsten, Ecker, Achim, Schnöckel, Hansgeorg, Amelunxen, Kerstin, Passler, Thomas, Wiberg, Nils

“…The reaction of (AlI·NEt3)4 with donor-free t-Bu3SiNa in toluene at −78 °C leads to the generation and crystallization of Al4[Si(t-Bu)3]4, whichafter Al4Cp*4…”
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Interacting With Urbanity by Mellbratt, Anders, Wiberg, Nils

“…This project has explored means of interaction between creators and recipients of mediated culture within the realm of architectural space through the use of…”
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[Ga18(SitBu3)8] and [Ga22(SitBu3)8]-Syntheses and Structural Characterization of Novel Gallium Cluster Compounds by Donchev, Alexander, Schnepf, Andreas, Stößer, Gregor, Baum, Elke, Schnöckel, Hansgeorg, Blank, Thomas, Wiberg, Nils

“…The novel neutral gallium cluster compounds [Ga18R*8] (1) and [Ga22R*8] (2) are obtained by warming up a metastable solution of gallium(I) bromide in…”
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Adaptive multigrid for finite element computations in plasticity by Ekevid, Torbjörn, Kettil, Per, Wiberg, Nils-Erik

“…The solution of the system of equilibrium equations is the most time-consuming part in large-scale finite element computations of plasticity problems. The…”
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Reactivity of the Isolable Disilene RPhSidSiPhR (R=SitBu3) Compounds of Silicon, Part 155. Unsaturated silicon compounds, Part 62. For parts 154 and 61 see ref. [2] by Wiberg, Nils, Niedermayer, Wolfgang, Polborn, Kurt, Mayer, Peter

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Adaptive FEA of wave propagation induced by high-speed trains by Ekevid, Torbjörn, Li, Martin X.D., Wiberg, Nils-Erik

“…The analysis of wave propagation in a solid under moving dynamic loads is a topic of great interest in railway engineering. On actual lines, high-level…”
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How to address Hyperobjects in exhibitions using emerging technologies by Wiberg, Nils

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Reactivity of the Unusually Structured Silicon Cluster Compound Si8(SitBu3)6 by Wiberg, Nils, Vasisht, Sham-Kumar, Fischer, Gerd, Mayer, Peter, Huch, Volker, Veith, Michael

“…When Si8R*6 (R* = Si(tBu)3) is reacted with mild halogenation reagents like carbon tetrachloride, carbon tetrabromide, tin tetrachloride and iodine, new…”
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Hexasupersilyl-triprismo-hexastannane (tBu3Si)6Sn6-The First Molecular Tin Compound Containing a Sn6 Prism by Wiberg, Nils, Lerner, Hans-Wolfram, Nöth, Heinrich, Ponikwar, Werner

“…Dark violet hexastannane (tBu3Si)6Sn6 displays a new framework motif for molecular tin compounds, in which six Sn atoms are located at the corners of a…”
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Adaptive h-version eigenfrequency analysis by Wiberg, Nils-Erik, Bausys, Romualdas, Hager, Patrik

“…In dynamics it is important to compute natural frequencies and modes with a demanded accuracy. This paper presents an adaptive h-version finite element scheme…”
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