title: Determination of sample temperature in unstable static fields by combining solid-state (79)Br and (13)C NMR.
abstract: Monitoring the isotropic chemical shifts to calibrate the sample temperature presupposes a perfect stability of the static magnetic field. It can be difficult to satisfy this requirement in solid-state NMR measurements. This paper describes a simple way to recover the accurate temperature dependence of the (79)Br resonance after subtracting changes of resonance frequency due to variations of the static field, monitored by the (13)C resonance.
authors: École Normale Supérieure - PSL Research University, Département de Chimie, 24, rue Lhomond, 75005 Paris, France; Sorbonne Universités, UPMC University Paris 06, LBM, 4 place Jussieu, F-75005 Paris, France; CNRS, UMR 7203 LBM, F-75005 Paris, France.
authors: Rudra N
authors: RN
authors: Purusottam
authors: École Normale Supérieure - PSL Research University, Département de Chimie, 24, rue Lhomond, 75005 Paris, France; Sorbonne Universités, UPMC University Paris 06, LBM, 4 place Jussieu, F-75005 Paris, France; CNRS, UMR 7203 LBM, F-75005 Paris, France.
authors: Geoffrey
authors: G
authors: Bodenhausen
authors: École Normale Supérieure - PSL Research University, Département de Chimie, 24, rue Lhomond, 75005 Paris, France; Sorbonne Universités, UPMC University Paris 06, LBM, 4 place Jussieu, F-75005 Paris, France; CNRS, UMR 7203 LBM, F-75005 Paris, France. Electronic address: Piotr.Tekely@ens.fr.
authors: Piotr
authors: P
authors: Tekely
keywords: Magic-angle spinning; Solid state NMR; Temperature calibration; Unstable static fields