Proton Magnetic Resonance of Single Crystals of Copper Acetate Monohydrate
Proton Magnetic Resonance of Single Crystals of Copper Acetate Monohydrate
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一水乙酸铜单晶的质子磁共振
DOI：
10.1143/jpsj.21.1096
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发表时间：
1966
影响因子：
1.7
通讯作者：
A. Kawamori
中科院分区：
文献类型：
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作者：
A. Kawamori
研究了 77°K 至 300°K 温度下一水醋酸铜质子磁共振的线形和自旋晶格弛豫时间。水分子中连接两个质子的线的方向和长度可以通过液氮温度下线分裂随场方向的变化来确定。发现结果与晶体结构中预期的氢键上氢核的位置一致。通过考虑甲基的旋转和质子之间的偶极相互作用来解释线形状的角度变化。基于三重态Cu ++ 离子引起的局部磁场波动理论，讨论了线形和自旋晶格弛豫时间的温度依赖性。
Line shape and spin lattice relaxation time of proton magnetic resonance of copper acetate monohydrate are studied at temperatures from 77°K to 300°K. The orientation and length of the line joining two protons in water molecules can be determined from the variation of line splitting with field direction at liquid nitrogen temperature. The result is found to be consistent with the positions ascribed to hydrogen nuclei on the hydrogen bonds expected from the crystal structure. The angular variation of line shape is explained by considering the rotation of methyl groups and dipolar interaction between protons. The temperature dependence of line shape and spin lattice relaxation time is discussed based on the theory fluctuating local magnetic field due to triplet Cu ++ ions.