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yinguojie

铜虫 (著名写手)

[求助] 翻译一段话,汉语翻译为英语,晶体方面,求高手翻译!自己也在翻译,翻译过了对比下!

晶体结构属于单斜晶系,C2/c空间群。它具有以M原子为中心的扭曲的八面体几何构型,配体A与M配位的原子C、 N、O分别采取顺式、反式、顺式构象,这与以前报道的类似配合物的构象一致。从图中还可以看出:M(III)与苯环上的碳原子形成碳-金属键,而不是与萘环上的碳原子形成碳-金属键,并且,由配位形成的五元环(M1,C1,C6,C7,N1)平面的平均偏差为0.0608 Å,此平面与苯环(C1,C2,C3,C4,C5,C6)形成的二面角为6.5°,与噁唑杂环(N1,O1,C7-17)所形成的二面角为9.2°。由表可知:M-C键的平均键长为1.997Å;M-N键的平均键长为2.079Å,M-O键的平均键长为 2.141Å,这是因为从O原子到C原子,其电负性逐渐减小,成键原子间的共价成分增加导致的。从配合物的空间堆积图可以看出:两个分子的萘环之间相互平行且部分重叠,两平面间的距离为3.450Å,存在明显的π-π相互作用。
勤勉之~~
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dxmboy88

木虫之王 (文学泰斗)

【答案】应助回帖

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sltmac(金币+3): 感谢应助,欢迎常来本版~ 2011-08-10 14:12:06
yinguojie(金币+80): 辛苦了 谢谢 2011-08-11 16:28:26
Crystal structure belongs to the monoclinic system, C2 / c space group. It possesses the distorted octahedron geometry structure at the center of M atomic. The A and M ligands in coordination with C, N, O atoms were respectively taken cis-form, anti-form, cisoid conformation, which is consistent with the reported conformation of similar complexes. From the graph, we can see that the M (III) and the carbon atom of benzene ring formed a carbon-metallic bond, but not the carbon atom of naphthalene ring. And the average deviation of the five-membered ring (M1, C1 C6, C7,, N1) plane from the coordination is 0.0608 & Aring.
The dihedral angle between the above plane and benzene ring (C1, C3, C4, C2, C5, C6)is 6.5 °, and the dihedral angle between the above plane and Oxazole heterocyclic ring (N1, O1, 7-17) is 9.2 °.It indicates from the table that the average bond length of M-C is 1.997Å, the average bond length of M-N is 2.079Å, and the average bond length of M-O is 2.141Å.This is resulting from the electronegativity decreasing gradually and the covalent component of the bond atoms increasing from the O to C atom. It can be perceived from the space accumulation figure of the complexes that the naphthalene ring between two molecules is parallel and overlap, the distance between the two planes is 3.450 & Aring, with the obvious π-π interaction.
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3楼2011-08-10 13:29:38
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