Results 51 to 60 of about 1,811,886 (362)

N,N′-Bis(2-furylmethylene)-1,1′-binaphthyl-2,2′-diamine

Acta Crystallographica Section E, 2008
In the title compound, C30H20N2O2, the orientation of the furyl group may induce a variety of coordination modes with this ligand. The dihedral angle between the two naphthyl rings is 79.25 (7)°.
Najoua Belhaj Mbarek ElMkacher, Mohamed Rzaigui, Faouzi Bouachir   +2 more
doaj   +1 more source

1,2-Diphenylethane-1,2-diyl diisonicotinate monohydrateContribution No 20272019.

Acta Crystallographica Section E, 2008
In the novel title compound, C26H20N2O4·H2O, the two phenyl rings make a dihedral angle of 45.3 (1)° with each other, and the dihedral angle between the two pyridyl planes is 69.8 (1)°.
Wang Xin, Sun Xiaoqiang, Xi Haitao, Meng Qi, Jiang Yan   +4 more
doaj   +1 more source

On Dihedral Angles of a Simplex

Journal of Mathematics Research, 2013
For an $n$-simplex, let $\alpha,\,\beta$ denote the maximum, and the minimum dihedral angles of the simplex, respectively. It is proved that the inequality $\alpha\le \arccos(1/n)\le \beta$ always holds, and either side equality implies that the $n$-simplex is a regular simplex.
openaire   +2 more sources

Poly(1,4‐anthraquinone) as an Organic Electrode Material: Interplay of the Electronic and Structural Properties due to the Unusual Lone‐Pair‐π Conjugation

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
In this study, the unique role of the unusual lone‐pair‐π conjugation mechanism in poly(1,4‐anthraquinone) (P14AQ) is explored as an organic electrode material. Unlike traditional π‐π interactions, P14AQ's conjugation involves lone pairs of oxygen atoms interacting with the π cloud of adjacent units, enabling stable charge transport even with minimal π‐
Xiaotong Zhang, Piotr de Silva
wiley   +1 more source

2-Chloro-N-(2-chlorobenzoyl)-N-(2-ethyl-4-oxo-3,4-dihydroquinazolin-3-yl)benzamide

Acta Crystallographica Section E, 2014
In the title compound, C24H17Cl2N3O3, the quinazolinone ring system is close to planar (r.m.s. deviation = 0.0132 Å), with the imide unit almost perpendicular to it, subtending a dihedral angle of 89.1 (1)°.
Oladapo Bakare, Candice Thompson, Yakini Brandy, Ray J. Butcher   +3 more
doaj   +1 more source

Electric Dipole-Magnetic Dipole Polarizability and Anapole Magnetizability of Hydrogen Peroxide as Functions of the HOOH Dihedral Angle.

Journal of Physical Chemistry A, 2017
The trace of tensors that account for chiroptical response of the H2O2 molecule is a function of the HO-OH dihedral angle. It vanishes at 0° and 180°, due to the presence of molecular symmetry planes, but also for values in the range 90-100° of this ...
S. Pelloni, P. Provasi, G. I. Pagola, M. Ferraro, P. Lazzeretti   +4 more
semanticscholar   +1 more source

Angle Tree: Nearest Neighbor Search in High Dimensions with Low Intrinsic Dimensionality [PDF]

, 2010
We propose an extension of tree-based space-partitioning indexing structures for data with low intrinsic dimensionality embedded in a high dimensional space. We call this extension an Angle Tree. Our extension can be applied to both classical kd-trees as
Chawla, Sanjay, Zvedeniouk, Ilia
core  

Regge calculus from a new angle [PDF]

, 2009
In Regge calculus space time is usually approximated by a triangulation with flat simplices. We present a formulation using simplices with constant sectional curvature adjusted to the presence of a cosmological constant.
Bahr B, Baratin A, Baratin A, Barrett J W, Barrett J W, Benjamin Bahr, Bianca Dittrich, Dittrich B, Dittrich B, Dittrich B Ryan J P, Freidel L, Kwok-keung Au T Luo F Stong R, Lewandowski J Okolow A, Livine E R, Luo F, Makela J, Makela J, Milnor J, Perez A, Perez A, Wainwright C, Wise D K, Wise D K   +22 more
core   +1 more source

Solution‐Processable and Ambient‐Stable Highly Conductive p‐Type Polymers Derived from Dihydropyrazine and Ethylenedioxythiophene

Advanced Functional Materials, EarlyView.
This work presents π–conjugated polymers based on dihydropyrazine (DHP) and ethylenedioxythiophene (EDOT), developed to produce highly conductive, flexible films for printed electronics. By optimizing the DHP and EDOT ratio, strong and compact π–π stacking is achieved, resulting in polymer films with conductivities up to 1700 S cm−1 under ambient ...
Sung Jae Jeon, Naixin Zhao, Yi Yuan, Yuning Li   +3 more
wiley   +1 more source

N-Benzoyl-N-(3-methylphenyl)-O-[2-(2-nitrophenyl)acetyl]hydroxylamine

Acta Crystallographica Section E, 2011
In the title molecule, C22H18N2O5, the nitro-substituted ring makes a dihedral angle of 81.9 (1)° with the benzoyl ring and a dihedral angle of 12.1 (1)° with the methyl-substituted ring.
Kai Zhang, Dian He
doaj   +1 more source