نتایج جستجو برای: alkali metals
تعداد نتایج: 77771 فیلتر نتایج به سال:
A new functional low molecular-weight gelator (LMWG) based on crown-appended quaterthiophene was synthesized and investigated as a new alkali metal cation responsive material with enhanced fluorescence emission upon gel-to-sol phase transition.
Alkali-doped fullerides show a wide range of electronic phases in function of alkali atoms and the degree of doping. Although the presence of strong electron correlations is well established, recent investigations also give evidence for dynamical Jahn-Teller instability in the insulating and the metallic trivalent fullerides. In this work, to reveal the interplay of these interactions in fuller...
We propose a systematic method of analyzing pseudopotential transferability based on linear-response properties of the free atom, including self-consistent chemical hardness and polarizability. Our calculation of hardness extends the approach of Teter1 not only by including self-consistency, but also by generalizing to non-diagonal hardness matrices, thereby allowing us to test for transferabil...
The successful synthesis of terminal lead aryloxides is shown to be dependent upon reaction conditions, including choice of solvent and alkali metal aryloxide precursor.
Porous carbon spheres with unique structures and morphologies are prepared from energetic carbon precursors, alkali propiolates, via ultrasonic spray pyrolysis. Aerosolized liquid droplets containing alkali propiolates act as microreactors that confine the thermal decomposition of energetic precursors and lead to the formation of several unprecedented carbon morphologies.
IN SHERGOTTITE. M. Kayama, T. Nakazato, H. Nishido, K. Ninagawa and A. Gucsik Research Institute of Natural Sciences, Okayama University of Science 1-1 Ridai-cho, Okayama, 700-0005, Japan ([email protected]), Department of Applied Physics, Okayama University of Science 1-1 Ridai-cho, Okayama, 700-005, Japan, Max Planck Institute for Chemistry, Department of Geochemistry, Joh.-J. Becherweg 27...
A remarkable orbital quadrupole magnetic resonance, so-called twist mode, is predicted in alkali metal clusters where it is represented by Ipi = 2(-) low-energy excitations of valence electrons with strong M2 transitions to the ground state. We treat the twist by both macroscopic and microscopic ways. In the latter case, the shell structure of clusters is fully exploited, which is crucial for t...
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