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qulihua

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[求助] 求一段关于键长分析——汉译英

C(8)-N(2) 、C(7)-N(1)的键长分别为为1.481(2)Å、1.474(2)Å,接近典型的C-N键键长1.47-1.50Å;由于N(1)和N(2)的孤对电子分别与苯环发生p-π共轭效应,造成C(1)-N(2)、C(6)-N(1)的键长分别缩短为1.430(2)Å、1.427(2)Å;C(7)-C(8) 的键长为1.514(3)Å,接近典型的C-C键长1.53Å;C(9)-O(1)、C(11)-O(2)的键长分别为1.211(2)Å、1.214(2)Å,接近C=O的键长(1.21Å-1.23Å;N(1)的孤对电子与C(11)-O(2)的双键发生p-π共轭效应,造成C(11)-N(1)的键长缩短为1.352(2)Å;N(2)的孤对电子与C(9)-O(1)的双键发生p-π共轭效应,造成C(9)-N(1)的键长缩短为1.362(2)Å。
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sltmac: 金币+1 2012-08-03 14:22:33
qulihua: 金币+10, 翻译EPI+1 2012-08-03 15:50:16
The bond lengths of C8-N2 and C7-N1 are 1.481(2) Å and 1.474(2) Å respectively, which are close to 1.47-1.50A, the typical C-N bond length. Because the lone pairs of N1 and N2 have p-π conjugation with benzene ring respectively, the bond lengths of C1-N2 and C6-N1 decrease to 1.430(2) Å and 1.427(2) Å. The bond length of C7-C8 is 1.514(3) Å, which is close to 1.53Å, the typical C-C bond length. The bond length of C9-O1 and C11-O2 are respectively 1.211(2) Å and 1.214(2) Å, which are close to 1.21Å-1.23Å, the C=O bond length. The lone pair electrons of N1 have p-π conjugation with double bond in C11-O2 and the bond length of C11-N1 decreases to 1.352(2)Å. The lone pair electrons of N2 have p-π conjugation with double bond in C9-O1 and the bond length of C9-N1 decreases to 1.362(2)Å.
2楼2012-08-03 08:29:07
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