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huangpeipe(金币+6, 翻译EPI+1): 说实话，不行，呵呵，给你几个金币吧，元宵节，不容易 2011-02-17 16:09:28
We think the product originally structure like 3a , he C=N duplet bond is in the link . The product X- unit crystal diffraction (chart crystal data) actually demonstrated that N(1)-C(1) key length is 1.363 Å ; But N(2)-C(1) key length is 1.288 Å , compares N(1)-C(1) key length. According to the literature, the C=N duplet bond's key length is 1.279 &N single bond key length is 1.339Aring; , but C Å. Therefore, N(1)-C(1) in fact is a single bond , ut N(2)-C(1) is a duplet bond, namely the C=N duplet bond is in outside the link, structure like 4a (chart).
用金山翻译的，看看行不行？行的话要小散BB哦~O(∩_∩)O~ |
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