Unexpected temperature dependence of^(1)H paramagnetic shift in MAS NMR of nickelocene  

作　　者：Xinbiao Jiang Jiefan Liu Xiaobing Lou Bingwen Hu Ming Shen 

机构地区：[1]Shanghai Key Laboratory of Magnetic Resonance,State Key Laboratory of Precision Spectroscopy,School of Physics and Electronic Science,East China Normal University,Shanghai,200241,China

出　　处：《Magnetic Resonance Letters》2024年第4期43-48,共6页磁共振快报（英文）

基　　金：supported by grants from the National Natural Science Foundation of China(Nos.22172049,22272055).

摘　　要：This work revisits the temperature dependence of^(1)H paramagnetic shift in nickelocene as a potential nuclear magnetic resonance(NMR)thermometer under fast magic angle spinning(MAS)rate.Surprisingly,an abnormal temperature dependence of^(1)H paramagnetic shift has been observed.In addition to a 1/T dependence term,a 1/T^(2)dependence term must be included to correctly describe the curvature behavior of the δ^(1)H-T correlation under fast MAS rate.

关 键 词：Solid-state NMR NMR thermometer Paramagnetic NMR Paramagnetic shift 

分 类 号：TH811[机械工程—仪器科学与技术]