NMR - nuclear magnetic resonance

Japanese: NMR - NMR/えぬえむあーる(英語表記)nuclear magnetic resonance
NMR - nuclear magnetic resonance
Nuclear magnetic resonance is a method of non-destructively learning about the structure and state of a substance by using the spin of atomic nuclei. When an atomic nucleus with nuclear spin is placed in a strong magnetic field, the nuclear spin splits into two energy states, one parallel to the magnetic field and the other opposite, and absorbs electromagnetic waves with a wavelength corresponding to the energy difference. This energy difference is influenced by the distribution of electrons around the nucleus and the bonding state of the atoms, which is observed as a resonance absorption spectrum. In particular, high-resolution NMR of ^1H and ^13C nuclei has become indispensable as a means of determining the structure of organic compounds.

(Professor Teijiro Ichimura, Tokyo Institute of Technology / 2007)

Source : "Chiezo" published by Asahi Shimbun Publications Co., Ltd. About Chiezo

Japanese:
核磁気共鳴といい、原子核のスピンを利用して物質の構造・状態を非破壊的に知る方法。核スピンを持つ原子核を強い磁場の中に置くと、核スピンが磁場と平行、または逆方向の2つのエネルギー状態に分裂し、そのエネルギー差に対応する波長の電磁波を吸収するようになる。このエネルギー差は、その原子核の周辺の電子の分布や原子の結合状態に影響され、それが共鳴吸収スペクトルとして観測される。特に、^1H及び^13C核の高分解能NMRは有機化合物の構造決定手段として必要不可欠になっている。

(市村禎二郎 東京工業大学教授 / 2007年)

出典 (株)朝日新聞出版発行「知恵蔵」知恵蔵について 情報

<<:  NMR Imaging - NMR Imaging

>>:  NFL - National Football League

Recommend

Anser cygnoides (English spelling)

… [Yukio Taniguchi]. … *Some of the terminology t...

Anorisaki - Anorisaki

A cape that belongs to Shima City, Mie Prefecture...

Kainic Acid - Kainic Acid

( 2S , 3S , 4S )-2-carboxy-4-isopropenyl-3-pyrrol...

Electron lens - denshirenzu (English spelling) electron lens

A device that works like an optical lens for elec...

Oratosquilla kempei (English spelling) Oratosquilla kempei

…[Shigeo Gamou]. … *Some of the terminology expla...

General of the Guard

…Therefore, once a general was on the battlefield...

George IV - George

The fourth King of the House of Hanover (reigned 1...

Wife - Wife

〘Noun〙 ("sama" is a suffix) A respectful...

Mousouros, M. (English spelling) MousourosM

...He also traveled around the former empire unde...

Functional element - Yesterday's lie

…Structural materials are also functional materia...

Mila Ras-pa (English spelling)

1040‐1123 A Tibetan Tantric Buddhist ascetic. Auth...

Kaiseki Matsumura

A religious leader and the head of the Dokai (Way...

Brackets

〘 noun 〙 (from the sound of "karakoro") ...

Mount Daisetsu

A group of volcanoes in the northwest of the Ishik...

Rotten borough

In the UK, this refers to urban constituencies th...