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[求助]
关于晶体方面的论文，帮忙润色一段话（附中文）
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每个Mn4单元中的四个Mn(III)离子配位环境均不同，每两个Mn(III)离子之间的连接方式也不尽相同，Mn(III)离子之间的磁耦合关系非常复杂，在此为了定性地考察锰离子之间的磁相互作用的强度，将四个锰离子之间的耦合关系简化，使用一个耦合常数J来考察。另外，为了减少计算中的参数、简化模型，分子间的通常较弱的磁相互作用贡献在此也不予考虑。根据正四面体排列的MnIII4体系（图解1）的自旋哈密顿算符Ĥ = -2J(Ŝ1Ŝ2+Ŝ1Ŝ4+ Ŝ2Ŝ3+ Ŝ3Ŝ4)，可导出该体系的磁化率表达式（公式1） The crystal structure of 1 shows that the coordination environments of four Mn(III) ions in every Mn4 units are different from each other and the bridging modes of every two Mn(III) ions are not completely the same indicate that the magnetic coupling relations between Mn(III) ions are extraordinary complicated. To qualitatively evaluate the magnitude of the magnetic interaction in manganese ions, we tried to simplify the coupling relation between the four Mn(III) ions with one coupling constant J. In general, the weaker magnetic interaction are not considered in order to reduce the calculation parameters and simplify the model. The layer can be schematically illustrated in Scheme 1. On the basis of the regular tetrahedron arrangement of MnIII4 model, the magnetic susceptibilities can be fitted accordingly by the following expression given in Equation (1) derived from the spin Hamiltonian Ĥ = -2J(Ŝ1Ŝ2+Ŝ1Ŝ4+ Ŝ2Ŝ3+ Ŝ3Ŝ4), |
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RXMCDM
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6楼2014-01-13 11:52:19
RXMCDM
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| The crystal structure of 1 shows that the coordination environments of each of the four Mn(III) ions in Mn4 unit are different and the bridging modes of each of two Mn(III) ions are not the same indicated the complicated magnetic coupling relations between Mn(III) ions . In order to qualitatively evaluate the magnitude of the magnetic interaction between manganese ions and simplify the coupling relationship between the four manganese ions,we introduced a coupling constant J.Further, in order to reduce the computational parameters and simplify the model ,the weaker magnetic interaction model molecules are not taken into account .According to tetrahedral arrangement of the MnIII4 system (Scheme 1),the magnetic susceptibilities of the system (Equation 1) can be derived from the spin Hamiltonian Ĥ = -2J(Ŝ1Ŝ2+Ŝ1Ŝ4+ Ŝ2Ŝ3+ Ŝ3Ŝ4). |
2楼2014-01-12 00:34:37
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然memory: 金币+5, ★★★很有帮助, 谢谢你的指点 2014-01-12 20:30:29
然memory: 金币+5, ★★★很有帮助, 谢谢你的指点 2014-01-12 20:30:29
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several phrases need to be further revised. 1. much weaker molecular magnetic interactions... 2, magnetic susceptibility. (there can be only one static magnetic susceptibility in one system.) |
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然memory3楼2014-01-12 13:42:28
RXMCDM
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然memory: 金币+15, 翻译EPI+1, ★★★很有帮助 2014-01-12 20:30:15
然memory: 金币+15, 翻译EPI+1, ★★★很有帮助 2014-01-12 20:30:15
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按三楼的建议，修改如下,原文的to 改为in order to ,意思是一样的，只是顺口一些，一般翻译后还要读一下，感觉通顺为好！ The crystal structure of 1 shows that the coordination environments of each of the four Mn(III) ions in Mn4 unit are different and the bridging modes of each of two Mn(III) ions are not the same indicated the complicated magnetic coupling relations between Mn(III) ions . In order to qualitatively evaluate the magnitude of the magnetic interaction between manganese ions and simplify the coupling relationship between the four manganese ions,we introduced a coupling constant J.Further, in order to reduce the computational parameters and simplify the model ,the much weaker molecular magnetic interactions are not taken into account .According to tetrahedral arrangement of the MnIII4 system (Scheme 1),the magnetic susceptibility of the system (Equation 1) can be derived from the spin Hamiltonian Ĥ = -2J(Ŝ1Ŝ2+Ŝ1Ŝ4+ Ŝ2Ŝ3+ Ŝ3Ŝ4). |
4楼2014-01-12 14:21:15
