Probing Local Structure of Layered Double Hydroxides with (1)H Solid-State NMR Spectroscopy on Deuterated Samples.
Probing Local Structure of Layered Double Hydroxides with (1)H Solid-State NMR Spectroscopy on Deuterated Samples.
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DOI：
10.1021/jz402510a
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发表时间：
2014-01
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影响因子：
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通讯作者：
Guiyun Yu;Ming Shen;Meng Wang;Li Shen;Wenhao Dong;S. Tang;Li Zhao;Zhe Qi;Nianhua Xue;Xuefeng Guo;Weiping Ding;Bingwen Hu;Luming Peng
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文献类型：
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作者：
Guiyun Yu;Ming Shen;Meng Wang;Li Shen;Wenhao Dong;S. Tang;Li Zhao;Zhe Qi;Nianhua Xue;Xuefeng Guo;Weiping Ding;Bingwen Hu;Luming Peng
通过简单有效的氘代反应，成功地将氢引入到水滑石中。由于（1）H-（1）H均偶极耦合的显著减少，在中低转速下可以方便地获得高分辨率的（1）H固体NMR谱，以提取LDHs中阳离子的有序信息。此外，我们表明，双共振实验可以很容易地应用于调查核间的邻近性和测试可能的阳离子有序超结构模型。这种方法可以很容易地扩展到具有不同组成的LDHs，以探索局部结构和层间阳离子和层间阴离子之间的关键相互作用。
By using a simple and efficient deuteration process, (2)H has been successfully introduced into layered double hydroxides (LDHs). Due to significantly less (1)H-(1)H homonuclear dipolar coupling, high-resolution (1)H solid-state NMR spectra can now be obtained conveniently at medium to low spinning speed to extract the information of cation ordering in LDHs. Furthermore, we show that double-resonance experiments can be applied easily to investigate internuclear proximities and test possible cation-ordered superstructure models. This approach can be readily extended to LDHs with different compositions to explore the local structure and the key interactions between the cations in the layer and interlayer anions.