نتایج جستجو برای: absolute electronegativity

تعداد نتایج: 89111  

A Ahmad, M Mohib-ul Haq,

A simple relation between the optical electronegativity, energy gap, refractive index and electronic polarizability is given for ternary chalcopyrite semiconductors. Energy gap has been evaluated from the optical electronegativity whereas refractive index and electronic polarizability values have been evaluated from the energy gap by proposing a linear relation between them. The calculated valu...

Journal: :The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists 1985

2014
Jing-Fang Hsu Tzu-Chieh Chou Jonathan Lu Shu-Hua Chen Fang-Yu Chen Ching-Chu Chen Jeffrey L. Chen MacArthur Elayda Christie M. Ballantyne Steven Shayani Chu-Huang Chen

BACKGROUND Low-density lipoprotein (LDL) plays a central role in cardiovascular disease (CVD) development. In LDL chromatographically resolved according to charge, the most electronegative subfraction-L5-is the only subfraction that induces atherogenic responses in cultured vascular cells. Furthermore, increasing evidence has shown that plasma L5 levels are elevated in individuals with high car...

Journal: :Journal of Electron Spectroscopy and Related Phenomena 2021

Alkali metal dosing (AMD) has been widely used as a way to control doping without chemical substitution. This technique, in combination with angle resolved photoemission spectroscopy (ARPES), often provides an opportunity observe unexpected phenomena. However, the amount of transferred charge and corresponding change electronic structure vary significantly depending on material. Here, we report...

Journal: :Journal of chemical information and modeling 2006
Joaquim Chaves Martinez Joan M. Barroso Patrick Bultinck Ramon Carbó-Dorca

This study presents an alternative of the Electronegativity Equalization Method (EEM), where the usual Coulomb kernel has been transformed into a smooth function. The new framework, as the classical EEM, permits fast calculations of atomic charges in a given molecule for a small computational cost. The original EEM procedure needs to previously calibrate the different implied atomic hardness an...

Journal: :Chemical & pharmaceutical bulletin 2010
Shigeki Kobayashi Makoto Watanabe Toshiyuki Chikuma

We examined the interaction between several ligands and alkaline (M(+)) or lanthanide (Ln(3+)) ions using eta-chi diagrams. eta and chi represent absolute hardness and absolute electronegativity, respectively. Based on the diagrams, new double-stranded amino acid chelators (1) conjugated to Cat (catechol) were synthesized. They had two cavities coordinating hard metal ions, such as Li(+) and K(...

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