Chirality Assisted Triplet Electron Pairing

The Journal of Physical Chemistry Letters, Год журнала: 2025, Номер unknown, С. 1629 - 1633

Опубликована: Фев. 5, 2025

Redox processes that involve pairs of electrons are common in nature. Some these reactions oxygen molecules. The understanding the efficiency reduction reaction (ORR), for example, is a challenge since spin forbidden and requires transfer two electrons. Past experimental theoretical studies demonstrated by controlling transferred electrons, it possible to overcome barrier resulting from mismatch between reactants products. In other works, was suggested enhanced if each pair have phase relation, namely, they possess property triplet state. Since nature through chiral systems, we probed chirality affects formation paired with same spin, like model calculations demonstrate enhances probability electron pairing states, even at room temperature. This enhancement originates breaking degeneracy, enabled interaction spins vibrations.

Язык: Английский

---

Chiral Phonons Enhance Ferromagnetism

The Journal of Physical Chemistry Letters, Год журнала: 2025, Номер unknown, С. 2001 - 2007

Опубликована: Фев. 18, 2025

Recent experiments suggest that the conditions for ferromagnetic order in magnetite can be modified by adsorption of chiral molecules. Especially, coercivity a metal was increased nearly 100% or 20 times earth magnetic flux density at room temperature. The was, moreover, demonstrated to increase linearly with temperature finite range around On basis these results, mechanism is proposed providing necessary enhancement anisotropy. It shown nuclear vibrations (phonons) coupled spin excitations (magnons) absorb thermal energy system, thereby diverting excess otherwise would excite magnons ferromagnet. This diversion not only restores but also enhances its stability increasing anisotropy magnon excitations. coupling between phonons enabled chirality due lack inversion symmetry.

Язык: Английский

---

Chiral 2D flakes with single atoms inclusion for spin-controlled oxygen evolution

Journal of Power Sources, Год журнала: 2025, Номер 641, С. 236839 - 236839

Опубликована: Март 24, 2025

Язык: Английский

---

Chiral Induced Spin Polarized Electron Current: Origin of the Chiral Induced Spin Selectivity Effect

The Journal of Physical Chemistry Letters, Год журнала: 2025, Номер unknown, С. 4346 - 4353

Опубликована: Апрель 24, 2025

The discovery of the chiral induced spin selectivity effect has provided a novel tool to study how active physical and chemical mechanisms may differ in enantiomers; however, origin itself is yet an open question. In this Letter, it theoretically shown that two aspects must be fulfilled for arise. First, chirality necessary condition breaking spin-degeneracy molecular structures do not comprise heavy elements. Second, dissipation indispensable molecule develop nonvanishing spin-polarization. These theoretical conclusions are illustrated terms few examples, showing necessity coordinated emergence effect.

Язык: Английский

---

The role of electrochemistry in solving the mystery of the relationship between molecular structure and anaesthetic potency

Current Opinion in Electrochemistry, Год журнала: 2025, Номер unknown, С. 101652 - 101652

Опубликована: Янв. 1, 2025

Язык: Английский

---