The asymmetric unit of the title compound, C20H24N2, contains one half-mol-ecule, with the single C-C bond of the 1,4-di-aza-butadiene fragment situated on a centre of symmetry. The benzene rings are inclined to the 1,4-di-aza-butadiene mean plane by 59.5 (1)°.
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http://dx.doi.org/10.1107/S1600536814001020 | DOI Listing |
Neurology
November 2024
From the Departments of Neurology (N.B.G., J.K., D.K.), Neurosurgery (K.K.D.), and Radiology (Z.N.), Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India.
Phys Chem Chem Phys
November 2023
Key Laboratory for Special Functional Materials of Ministry of Education, Collaborative Innovation Center of Nano Functional Materials and Applications, School of Material Science and Engineering, Henan University, Kaifeng 475004, China.
Due to the asymmetrical structure in the vertical direction, Janus two-dimensional (2D) monolayer (ML) materials possess some unique physical properties, holding great promise for nanoscale devices. In this paper, based on the newly discovered MoAZ (A = Si, Ge; Z = N, P, As) ML, we propose a class of 2D Janus MoAZH ML materials with good stability and excellent mechanical properties using first-principles calculations. We demonstrate that the novel Janus MoAZH ML materials are all semiconductors with bandgaps ranging from 0.
View Article and Find Full Text PDFPhys Rev E
July 2023
Institute Carlos I for Theoretical and Computational Physics, and Departamento de Electromagnetismo y Física de la Materia, Universidad de Granada, Granada 18071, Spain.
Large deviation theory provides the framework to study the probability of rare fluctuations of time-averaged observables, opening new avenues of research in nonequilibrium physics. Some of the most appealing results within this context are dynamical phase transitions (DPTs), which might occur at the level of trajectories in order to maximize the probability of sustaining a rare event. While macroscopic fluctuation theory has underpinned much recent progress on the understanding of symmetry-breaking DPTs in driven diffusive systems, their microscopic characterization is still challenging.
View Article and Find Full Text PDFMolecules
May 2023
College of Chemistry, Baicheng Normal University, Baicheng 137000, China.
Regio- and stereoselective switchable synthesis of ()- and ()--carbonylvinylated pyrazoles is first developed by using the Michael addition reaction of pyrazoles and conjugated carbonyl alkynes. AgCO plays a key role in the switchable synthesis of ()- and ()--carbonylvinylated pyrazoles. AgCO-free reactions lead to thermodynamically stable ()--carbonylvinylated pyrazoles in excellent yields whereas reactions with AgCO give ()--carbonylvinylated pyrazoles in good yields.
View Article and Find Full Text PDFInorg Chem
December 2022
Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education, School of Chemistry and Material Science, Heilongjiang University, 74 Xuefu Road, Harbin150080, P. R. China.
A series of di- and tetranuclear lanthanide complexes with the formulas [Dybmzch(tmhd) (CHOH)]·CHOH (), [Dybmzch(dbm) (CHO)(CHOH)]·0.5CHOH·0.5HO (), and Dybmzch(btfa) (), where tmhd = 2,2,6,6-tetramethyl-3,5-heptanedionate, dbm = dibenzoylmethane, btfa = benzoyltrifluoroacetone, and bmzch = ()--[()-pyrimidin-2-ylmethylene]pyrimidine-2-carbohydrazonate, were structurally and magnetically characterized.
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