Electron Nuclear Double Resonance

Die Elektronkerndoppelresonanzspektroskopie (kurz: ENDOR für Electron Nuclear Double Resonance) ist eine spezielle Form der ESR-Spektroskopie.

Sie kombiniert die Vorteile der NMR (extrem hohes Auflösungsvermögen) und der ESR (extrem hohe Empfindlichkeit), indem beide Spektroskopieformen gleichzeitig bei einer Probe angewendet werden.

Das ESR-Signal wird dabei als Indikator für ein passendes NMR verwendet, welches um diese Stelle durch seine hohe Auflösung die Anzahl der Signallinien deutlich besser bestimmen kann.

Somit ist die ENDOR-Spektroskopie in der Lage, Wechselwirkungen von paramagnetischen Elektronen mit Nachbar-Atomkernen zu messen. Diese ist unter dem Namen Superhyperfein-Wechselwirkung bekannt.

Anwendungen der ENDOR-Spektroskopie sind die Erforschung von Endohedralen Komplexen sowie Defekten in Halbleitern oder Chiralität.


Siehe auch


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