TY - CHAP

T1 - Chapter 23

T2 - Singlet Order in Heteronuclear Spin Systems

AU - Kiryutin, Alexey S.

AU - Zhukov, Ivan V.

AU - Yurkovskaya, Alexandra V.

AU - Budker, Dmitry

AU - Ivanov, Konstantin L.

PY - 2020

Y1 - 2020

N2 - The concept of heteronuclear Long-Lived spin States (LLSs) is introduced. In the simplest case of a pair of heteronuclei, such states are given by the singlet order of the spin pair, which can be efficiently sustained under Zero or Ultra-Low Field (ZULF) conditions. Here we describe two possible ways of detecting long-lived singlet order of heteronuclei: detection at ZULF conditions and NMR (Nuclear Magnetic Resonance) detection at high field utilising fast field-cycling. A theoretical description of the underlying spin dynamics is presented for both cases; the discussion is supported by experimental examples of LLSs in 13CH groups. The generality of these phenomena is discussed, as well as their potential applications.

AB - The concept of heteronuclear Long-Lived spin States (LLSs) is introduced. In the simplest case of a pair of heteronuclei, such states are given by the singlet order of the spin pair, which can be efficiently sustained under Zero or Ultra-Low Field (ZULF) conditions. Here we describe two possible ways of detecting long-lived singlet order of heteronuclei: detection at ZULF conditions and NMR (Nuclear Magnetic Resonance) detection at high field utilising fast field-cycling. A theoretical description of the underlying spin dynamics is presented for both cases; the discussion is supported by experimental examples of LLSs in 13CH groups. The generality of these phenomena is discussed, as well as their potential applications.

UR - http://www.scopus.com/inward/record.url?scp=85089898889&partnerID=8YFLogxK

U2 - 10.1039/9781788019972-00418

DO - 10.1039/9781788019972-00418

M3 - Chapter

AN - SCOPUS:85089898889

T3 - New Developments in NMR

SP - 418

EP - 433

BT - In-cell NMR Spectroscopy

A2 - Pileio, Giuseppe

PB - Royal Society of Chemistry

ER -