초록

국내 현황을 살펴보면 solid state 전용 NMR로 설치된 것은 서울분소에 있는 200MHz 한대뿐이고, 다른곳에는 solution NMR에 CP/MAS를 할 수 있는 accessory를 붙여 사용하고 있는 실정으로 외국에서 사용되고 있는 광범위한 연구범위와 기술 개발에는 아직 미치지 못하고 있는 실정이다. 본 연구는 국내의 고체핵자기 공명분광기의 분포상황과 이용도를 조사함으로서, 앞으로 본소에 설치되어 국내의 고체핵자기 공명분광기를 사용한 연구에 결정적인 영향을 미칠 고체핵자기 공명분광기 선정에 이용될 것이다.

Abstract ▼

The NMR spectrum of a liquid typically consists of numerous sharp lines because all possible anisotropic interactions, namely chemical shift anisotropy, dipole-dipole interactions, quadrupolar interactions, etc. are. averaged to zero due to rapid isotropic molecular motion. These interactions are us

The NMR spectrum of a liquid typically consists of numerous sharp lines because all possible anisotropic interactions, namely chemical shift anisotropy, dipole-dipole interactions, quadrupolar interactions, etc. are. averaged to zero due to rapid isotropic molecular motion. These interactions are usually retained in the solid state spectra due to restricted motion and may be used to monitor the symmetry properties and the electronic state of the solid sample. NMR is also very sensitive to dynamics from tens of seconds to tens of picoseconds. Therfore, a wide range of dynamic processev can be explored. NMR is suitable to the study of amorphous materials or surface species as well as the study of insoluble materials due to very short-range structural sensitivity of the techniques compared with diffraction techniques. Thus, the solid state NMR stechniques have been extensively employed to study various material systems such as catalyst, ceramics, zeolites, coal, glasses, polymers, organic solids, and biopolyr, on the ether hand, the efforts for higher resolution and sensitivity will be continued. Unfortunately, not only solid state NMR has not been well known in science community in Korea, but also there is only one NMR spectrometer in Korea dedicated for solid state NMR experiments, which is located at the Seoul branch of the Korea Basic Science Center(KBSC). In case that the NMR instruments for liquid state NMR experiments have some solid state NMR accessories, the instruments are rarely utilized for solid state NMR experiments. Thus, I would like to suggest to install 300MHz and 500MHz NMR spectrometers at the headquaters of KBSC entirely for solid state NMR experiments to take advantage of as well as to demonstrate the usefulness of solid state NMR techniques in science community in Korea.

목차 Contents

• 제 1 장 고체핵자기 공명 개론...7
• 제 1 절 기본원리...7
• 제 2 절 많이 쓰이는 고체 핵자기 공명 기법들...8
• 제 3 절 응용범위...10
• 참고문헌...11
• 그림설명...12
• 제 2 장 고체핵자기 공명의 국내 현황...16
• 제 1 절 국내에 현존하는 고체핵자기 공명분광기들...16
• 제 2 절 연구분야...17
• 제 3 장 본소에 설치될 고체핵자기 공명분광기에 대한 건의...18
• 제 1 절 Summary of Commodity...18
• 제 2 절 Compatative Table of Specification...19