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qingfeng877680(½ð±Ò+3,VIP+0):ÐֵܷÒëÐÁ¿àÁË¡£ 8-10 16:01
qingfeng877680(½ð±Ò+3,VIP+0):ÐֵܷÒëÐÁ¿àÁË¡£ 8-10 16:01
| The oxygen in amide is coordinated with metal ions, which decreases the C=O double bond energy and increases the C-N single bond energy. Therefore, the amide C-N single bond has partial double bond characters, and thus to be shorter. |
3Â¥2009-07-27 00:28:01
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justafly(½ð±Ò+6,VIP+0):¶àл 7-27 00:18
justafly(½ð±Ò+6,VIP+0):¶àл 7-27 00:18
| As oxygen atoms of amide group involved in coordination with metal ions, so that C=O double bond energe can be reduced, accordingly C-N bond energy increasing. This causes amide C-N single bond has partly double bond character. Hence C-N bond is obviously shorter. |

2Â¥2009-07-26 23:27:08














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