Results 101 to 110 of about 1,811,886 (362)
N-Acetyl-N-[2,4-dicyano-1-(4-methoxyphenyl)-9,10-dihydrophenanthren-3-yl]acetamide
Acta Crystallographica Section E, 2012 In the title compound, C27H21N3O3, the cyclohexa-1,3-diene ring has a screw-boat conformation, and the fused ring system is folded, the dihedral angle between the outer benzene rings being 27.61 (6)°. The N-acetylacetamide residue (r.m.
Abdullah M. Asiri +4 more
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Advanced Science, EarlyView.A data‐driven workflow integrating molecular dynamics simulations and machine learning enables efficient discovery of optimized lithium battery electrolytes. Key structural descriptors are screened for predicting coordination behavior and ion transport. Gaussian process regression identifies an optimal feature space, guiding rational electrolyte design.
Xiwang Chang +8 more
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2,2′-(1-Phenyl-1H-pyrazole-3,5-diyl)diphenol
Acta Crystallographica Section E, 2009 The title compound, C21H16N2O2, was derived from 1-(2-hydroxyphenyl)-3-(-methoxyphenyl)propane-1,3-dione. The molecular structure of the title compound is stabilized by an intramolecular O—H...N hydrogen bond.
Michael Bolte +4 more
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The minimum number of acute dihedral angles of a simplex [PDF]
Proceedings of the American Mathematical Society, 2003 It is shown that there are always at least \(n\) acute dihedral angles in any \(n\)-simplex. An \(n\)-simplex with exactly \(n\) acute dihedral angles is constructed. This confirms a conjecture of \textit{M. S. Klamkin} and \textit{L. P. Pook}, Problem 1281 in Math. Mag. 61, 320 (1988).
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Advanced Science, EarlyView.This article presents an insightful review on the exploitable nexus of geometry, folding mechanics and stimuli‐responsive physics for achieving active programmability in tubular origami metamaterials and metastructures, highlighting the broad‐spectrum potential in innovative applications across the length scales, along with critically analysing the ...
A. Sharma, S. Naskar, T. Mukhopadhyay
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(2-Chloropyrimidin-4-yl)ferrocene
Acta Crystallographica Section E, 2014 In the title compound, [Fe(C5H5)(C9H6ClN2)], the two cyclopentadienyl rings are almost parallel, subtending a dihedral angle of 3.01 (5)°. The dihedral angle between the substituted cyclopentadienyl ring and the pyrimidinyl ring is 12.02 (1)°.
Guo-Qing Shi +4 more
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Volume of a tetrahedron in terms of dihedral angles and circumradius
Applied Mathematics Letters, 2000 The volume of a tetrahedron \(T\) in Euclidean 3-space is represented -- in a symmetrical way -- in terms of the six dihedral angles \(\alpha_i\) \((i=1,\dots,6)\) between the faces of \(T\), and of the radius \(R\) of the sphere circumscribing \(T\). Using this general formula, \(\text{vol}(T)\) is expressed by \(R\) in the special cases of a regular ...
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The Least-Area Tetrahedral Tile of Space
, 2019 We determine the least-area unit-volume tetrahedral tile of Euclidean space, without the constraint of Gallagher et al. that the tiling uses only orientation-preserving images of the tile.
Bongiovanni, Eliot +3 more
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Split‐Standing Molecular Engineering for Textured Silicon/Perovskite Tandems
Advanced Science, EarlyView.An indolocarbazole‐based HSL material (DPAICz) with a split‐standing molecular configuration is reported specifically designed for textured silicon substrates. Due to its strong anchoring stability and excellent hole extraction efficiency, monolithic textured silicon/perovskite tandem solar cells employing DPAICz as the HSL achieved a remarkable power ...
Xiaonan Wang +11 more
wiley +1 more source
Lp-estimates for solutions of the heat equation in a dihedral angle [PDF]
Rendiconti di Matematica e delle Sue Applicazioni, 2001 We prove coercive weighted Lp-estimates for the solutions of the Dirichlet and Neumann initial-boundary value problems for the heat equation in n-dimensional dihedral angle with arbitrary opening angle θ ∈ (0, 2π].
V.A. Solonnikov
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