منابع مشابه
Covalency of hydrogen bonds in solids revisited.
The covalent nature of short hydrogen bonds has been under debate for long. Here we show that the crystal orbital Hamilton population (COHP) bonding indicator gives new, complementary evidence of covalent hydrogen···acceptor interactions in the molecular solid state.
متن کاملPolarization and Covalency in Alkali – Tetralide Clusters
In this paper we discuss the structure of A 4 M 4 alkali(= A)–tetralide (= M) (= group 14) clusters. Without polarization these polyions consist of a central tetralide tetrahedron with each face capped by an alkali ion. We show that ionic polarization can lead to quite different cluster structures by breaking up of the tetralide tetrahedron into pairs M 2 , and it can even destroy covalent bond...
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in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...
15 صفحه اولCovalency-reinforced oxygen evolution reaction catalyst
The oxygen evolution reaction that occurs during water oxidation is of considerable importance as an essential energy conversion reaction for rechargeable metal-air batteries and direct solar water splitting. Cost-efficient ABO3 perovskites have been studied extensively because of their high activity for the oxygen evolution reaction; however, they lack stability, and an effective solution to t...
متن کاملCluster Anion: Covalency Involving f Orbitals
While boride clusters of alkali and transition metals have been observed and extensively characterized, so far little is known about lanthanide−boron clusters. Lanthanide−boride solids are intriguing, however, and therefore it is of interest to understand the fundamental electronic properties of such systems, also on the subnano scale. We report a joint experimental photoelectron spectroscopic ...
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ژورنال
عنوان ژورنال: Dalton Transactions
سال: 2021
ISSN: 1477-9226,1477-9234
DOI: 10.1039/d0dt03699d