Nuclear modulation effects in high-spin electron systems with small zero-field splittings

Nuclear modulation effects in high-spin electron systems with small zero-field splittings
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具有小零场分裂的高自旋电子系统中的核调制效应

DOI:
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发表时间:
1992
期刊:
影响因子:
--
通讯作者:
J. Peisach
J. Peisach
中科院分区:
--
文献类型:
--
作者:
A. R. Coffino;J. Peisach

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本文提出了一种解析理论,用于模拟高自旋电子系统(S=5/2)中应用双脉冲电子自旋回波包络调制(ESEEM)技术产生的核调制,该系统与自身的核自旋(I ' =5/2)和远核自旋(I=1/2)耦合。该理论不同于先前使用的Mims[电子顺磁共振,由S. Geschwind编辑(全会,纽约,1972),263-351页],通过在自旋哈密顿量中包含零场分裂(ZFS)项来描述更简单系统(S=1/2, I=1/2)的ESEEM结果。在推导过程中所做的主要假设是,只有那些不具有共同电子能级的跃迁才会被激发。本文讨论了这一假设和其他假设。由此得到的解析形式表明,S=5/2体系中5种可能的单量子电子跃迁中的每一种都对ESEEM谱有贡献。每个电子跃迁的贡献与Mims f…
An analytic theory has been developed to simulate the nuclear modulations arising from the application of the two‐pulse electron‐spin‐echo envelope modulation (ESEEM) technique to a high‐spin‐electron system with S=5/2, coupled both to its own nuclear spin, I’=5/2, and a distant nuclear spin, I=1/2. This theory differs from that previously used by Mims [Electron Paramagnetic Resonance, edited by S. Geschwind (Plenum, New York, 1972), pp. 263–351] to describe the ESEEM results of a simpler system (S=1/2, I=1/2) by the inclusion of a zero‐field splitting (ZFS) term in the spin Hamiltonian. The major assumption made in the derivation is that only transitions that do not share a common electron energy level are excited. This and other assumptions are discussed. The resulting analytic form suggests that each of the five possible single‐quantum electron transitions in the S=5/2 system make a contribution to the ESEEM spectrum. The contribution from each electron transition is similar to that described by Mims f...
高铁肌红蛋白中血红素铁的水协调。
DOI: --
发表时间: 1984
期刊: The Journal of biological chemistry
影响因子: --
作者:
Peisach,J;Mims,WB;Davis,JL
通讯作者: Davis,JL
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DOI: 10.1021/bi00398a057
发表时间: 1987
期刊: Biochemistry
影响因子: 2.9
作者:
Magliozzo,RS;McCracken,J;Peisach,J
通讯作者: Peisach,J