甲酸盐和乙酸盐的辐射损伤:甲酸盐离子的电荷转移

International Journal for Radiation Physics and Chemistry Pub Date : 1976-01-01 DOI:10.1016/0020-7055(76)90084-X

Martyn C.R. Symons, Douglas X. West, James G. Wilkinson

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引用次数: 4

摘要

将甲酸盐暴露在77 K的60co - λ射线下，得到了一个分布在约1600 G范围内的多谱线esr谱，这可以用CO2−:自由基与两个不相等的甲酸盐离子发生强相互作用，与另一对离子发生较小的相互作用，与第三对离子发生弱相互作用来解释。未检测到Tl(II)中心。乙酸盐也给出了约500 G的多谱线，分配给H2CCO2 -基团与两个不相等的乙酸盐离子相互作用，并与另外两个弱相互作用。在这种情况下，检测到分配给Tl(II)的高场特征。

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Radiation damage in Thallous formate and acetate: Charge-transfer from Thallous ions

Exposure of thallous formate to ⁶⁰Coλ-rays at 77 K gave a species exhibiting a multiline E.S.R. spectrum spread over about 1600 G which is interpreted in terms of $C $ O₂^−: radicals undergoing strong interaction with two inequivalent thallous ions, a smaller interaction with another pair and weak interaction with a third pair. No Tl(II) centre was detected.

Thallous acetate also gave a multiline spectrum spread over about 500 G, which is assigned to H₂ $C $ CO₂⁻ raidcals interacting with two inequivalent thallous ions, and weakly with two others. A high-field feature assigned to Tl(II) was detected in this case.

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International Journal for Radiation Physics and Chemistry

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