Results 241 to 250 of about 37,717 (312)

High Pressure Stabilizes the Elusive Hexacoordinated Carbon

ChemistryEurope, EarlyView.
The MCF6 species (M = Ca, Sr) is more stable than the bicomponent MF2…CF4 mixture in the solid‐state at high pressure (p > 400 GPa). The main building block is the [CF6]2− unit in which carbon is hexacoordinated. Unusually high coordination number for elements has been of great interest in chemistry.
Shovan Das, Adrish Das, Ayan Datta
wiley   +1 more source

Experimental realization of a SU(3) color-orbit coupling in an ultracold gas. [PDF]

Nat Commun
Madasu CS, Mitra C, Gabardos L, Rathod KD, Zanon-Willette T, Miniatura C, Chevy F, Kwong CC, Wilkowski D.   +8 more
europepmc   +1 more source

Synthesis of Cyclobutane‐Containing Tricyclic β‐Lactams Based on a Saturated Scaffold Enabled by Iron‐catalysed [2 + 2]‐Cycloaddition

Chemistry – A European Journal, EarlyView.
First syntheses of pyrrolidine‐, piperidine‐, and azepane tricyclic β‐lactams based on a saturated scaffold are achieved through an Fe‐pyrimidinediimine‐catalysed [2 + 2] cycloaddition of allylamines analogues followed by photo‐induced intramolecular C─H insertion.
Lea Freitag, Johannes Zeh, Levi A. Ziegenhagen, Felix J. Becker, Dragoș‐Adrian Roșca   +4 more
wiley   +1 more source

A quantum approximate optimization method for finding Hadamard matrices. [PDF]

Sci Rep
Suksmono AB.
europepmc   +1 more source

A [3]Rotaxane Containing {Ti7Ga} Rings Linking CuII: Synthesis, Structure, and Spectroscopic Studies

Chemistry – A European Journal, EarlyView.
Extended hybrid inorganic‐organic [2]‐ and [3]‐rotaxanes are reported based on heterometallic rings with threads that link CuII complexes; the crystal structures are reported, and the solution behavior is investigated by double electron electron resonance spectroscopy methods.
Selena J. Lockyer, Lubomir Loci, George F. S. Whitehead, Inigo J. Vitorica‐Yrezabal, Grigore A. Timco, Alice M. Bowen, Eric J. L. McInnes, Richard E. P. Winpenny   +7 more
wiley   +1 more source

Time-of-Flow Distributions in Discrete Quantum Systems: From Operational Protocols to Quantum Speed Limits. [PDF]

Entropy (Basel)
Beau M.
europepmc   +1 more source

Ion‐Pairing‐Modulated Diradical Properties in Partially Conjugated Negatively Charged π‐Electronic Systems

Chemistry – A European Journal, EarlyView.
A quinonoidal dipyrrolyldiketone boron complex with an orthogonally arranged catechol unit in the dianionic form exhibited diradical properties, as observed from the singlet–triplet energy gaps (ΔEST) that were modulated by coexisting countercations. ΔEST values were controlled by the bridging boron moieties in the dianion diradicals.
Hiroto Kobayashi, Takashi Kubo, Shinya Sugiura, Yohei Haketa, Hiromitsu Maeda   +4 more
wiley   +1 more source

eChem: Accelerated Method Development in Quantum Chemistry with Notebooks

Chemistry–Methods, EarlyView.
The benefits of using Jupyter Notebooks to simplify and accelerate scientific code development are demonstrated using the practical example of the analytical molecular Hessian. The eChem project has been previously presented as an interactive platform for quantum and computational chemistry education [J. Chem. Educ. 100, 1664–1671].
Manuel Hodecker, Patrick Norman, Iulia Emilia Brumboiu   +2 more
wiley   +1 more source

An "exceptional" magnetic sensor. [PDF]

Light Sci Appl
Yi Z, Agarwal GS, Scully MO.
europepmc   +1 more source

A priori estimates and large population limits for some nonsymmetric Nash systems with semimonotonicity

Communications on Pure and Applied Mathematics, EarlyView.
Abstract We address the problem of regularity of solutions ui(t,x1,…,xN)$u^i(t, x^1, \ldots, x^N)$ to a family of semilinear parabolic systems of N$N$ equations, which describe closed‐loop equilibria of some N$N$‐player differential games with Lagrangian having quadratic behaviour in the velocity variable, running costs fi(x)$f^i(x)$ and final costs gi(
Marco Cirant, Davide Francesco Redaelli
wiley   +1 more source