Preparation of Electric Field-Applicable Solid State NMR Probe

电场适用的固态核磁共振探针的制备

• 批准号: 12554031
• 负责人: KITAGAWA Susumu
• 金额: $ 6.59万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12554031/
• 关键词: electric filed; solid state NMR probe; ferroelectric; microporous compound; coordination polymer; 固体プローブ; 電場印可; 多孔性錯体

We have constructed a new NMR probe for the measurement of solid state NMR spectra under the electric field. The high-power amplifier was used for the observation of the spectra. The sample in the dyfron plate vessel. The sample stage was mounted in the goniohead so that the stage can be rotated. Consequently, the electric field can be applied to the sample in the region of -90 - +90°against the magnetic field. To avoid an evolution of heat, cooled air was supplied to the stage by the tube. High-voltage rapid electric amplifier was installed, which can apply direct voltage of 0-500 V to the sample. Using the probe, we have measured ^<13>C NMR spectra of 4-cyano-4'-n-pentylbiphenyl (5CB), which shows a nematic liquid crystal phase at room temperature, by stepwise increase of a electric field. The obtained spectra are found to be in good agreement with previous reports on a local motion and an electronic structures of 5CB. In addition we have used the probe to characterize microporous coordination polymers with guest inclusion ability.

我们构建了一种新型核磁共振探针，用于测量电场下的固态核磁共振谱。使用大功率放大器进行光谱观测。将样品置于dyfron平板容器中。样品载物台安装在测角头中，使得载物台可以旋转。因此，电场可以施加到与磁场成-90 - +90 °的区域中的样品上。为了避免热量的释放，冷却空气通过管供应到级。安装了高压快速电放大器，可对样品施加0-500 V的直流电压。利用该探针，我们测量了<13>在室温下呈双相液晶的4-氰基-4 '-正戊基联苯（5CB）的~ 13 CNMR谱。所获得的光谱被发现是在良好的协议与以前的报告的本地运动和电子结构的5CB。此外，我们还使用该探针表征了具有客体包合能力的微孔配位聚合物。

项目成果

S.-i. Noro: "New microporous coordination polymer affording guest-coordination sites at channel walls"Chem. Comm.. 222 (2002)

S.-i。

S.Kitagawa: "Coordination compounds of 1,4-dihydroxybenzoquinone and its homologues.Structures and properties"Coord.Chem.Rev.. 224. 11-34 (2002)

S.Kitakawa：“1,4-二羟基苯醌及其同系物的配位化合物。结构和性质”Coord.Chem.Rev.. 224. 11-34 (2002)

S.-i.Noro: "New microporous coordination polymer affording guest-coordination sites at channel walls"Chem. Comm.. 222-223 (2002)

S.-i.Noro：“新型微孔配位聚合物在通道壁上提供客体配位位点”Chem。

H. -C. Chang: "An Unprecedented Mixed-Charged State in a Supramolecular Assembly of Ligand-Based Mixed-Valence Redox Isomers"Angew. Chem. Int. Ed.. 41. 130 (2002)

H.-C。

S. Kitagawa: "Coordination compounds of 1,4-dihydroxybenzoquinone and its homologues. Structures and properties"Coord. Chem. Rev.. 224. 11 (2002)

S. Kitakawa：“1,4-二羟基苯醌及其同系物的配位化合物。结构和性质”Coord。