期刊
JOURNAL OF CHEMICAL PHYSICS
卷 151, 期 12, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5121025
关键词
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资金
- CEDIA, Ecuador [CEPRA XII-2018-06]
- PICS CNRS Scratch it project
We present an analytical model for the role of hydrogen bonding on the spin-orbit coupling of a model DNA molecule. Here, we analyze in detail the electric fields due to the polarization of the hydrogen bond on the DNA base pairs and derive, within a tight binding analytical band folding approach, an intrinsic Rashba coupling which should dictate the order of the spin active effects in the chiral-induced spin selectivity effect. The coupling found is ten times larger than the intrinsic coupling estimated previously and points out to the predominant role of hydrogen bonding in addition to chirality in the case of biological molecules. We expect similar dominant effects in oligopeptides, where the chiral structure is supported by hydrogen-bonding and bears on orbital carrying transport electrons.
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