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典型文献
Heteronuclear-filtered 1H homonuclear multi-quantum correlation experiment at 100 kHz magic-angle spinning
文献摘要:
Remarkable advances in fast magic-angle spinning(MAS)techniques significantly improve the resolution of 1H solid-state nuclear magnetic resonance(NMR)spectra.Here,we introduce a heteronuclear-filtered 1H homonuclear multi-quantum(MQ)correlation strategy available at a MAS rate of 100 kHz by combining 1H{X}heteronuclear-filtered methods and 1H homonuclear MQ correlation experiments.The proposed strategy was applied to selectively extract 1H signals of aluminum lactate(Al-Lac)in a mixture of Al-Lac and zinc lactate(Zn-Lac)using 27Al-filtered methods(i.e.,1 H{27Al}heteronuclear multiple quantum correlation(HMQC)or 1H{27Al}symmetry-based resonance-echo saturation-pulse double-resonance(S-RESPDOR)).We demonstrate that incorporating these 27Al-filtered methods into two-dimensional(2D)1H-1H double-quantum(DQ)/single-quantum(SQ),triple-quantum(TQ)/SQ and even three-dimensional(3D)27Al/1H(DQ)/1H(SQ)ex-periments can facilitate the acquisition of spectra without signal overlap and targeted characterization of the 1H species surrounding 27Al sites.The proposed strategy is considered to efficiently extract key structural information from complex spin systems.
文献关键词:
作者姓名:
Mingji Zheng;Shuangqin Zeng;Xiumei Wang;Xiuzhi Gao;Qiang Wang;Jun Xu;Feng Deng
作者机构:
State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,Wuhan Center for Magnetic Resonance,Wuhan Institute of Physics and Mathematics,Innovation Academy for Precision Measurement Science and Technology,Chinese Academy of Sciences,Wuhan,430071,China;University of Chinese Academy of Sciences,Beijing,100049,China;SINOPEC Research Institute of Petroleum Processing,Beijing,100083,China;Bruker(Beijing)Scientific Technology Co.Ltd.,Beijing,100192,China
引用格式:
[1]Mingji Zheng;Shuangqin Zeng;Xiumei Wang;Xiuzhi Gao;Qiang Wang;Jun Xu;Feng Deng-.Heteronuclear-filtered 1H homonuclear multi-quantum correlation experiment at 100 kHz magic-angle spinning)[J].磁共振快报(英文),2022(04):266-275
A类:
Heteronuclear,homonuclear,RESPDOR
B类:
filtered,1H,quantum,correlation,kHz,magic,angle,spinning,Remarkable,advances,fast,MAS,techniques,significantly,improve,resolution,solid,state,magnetic,resonance,NMR,spectra,Here,we,introduce,heteronuclear,strategy,available,by,combining,methods,experiments,proposed,was,applied,selectively,extract,signals,aluminum,lactate,Lac,mixture,zinc,using,27Al,multiple,HMQC,symmetry,echo,saturation,pulse,double,We,demonstrate,that,incorporating,these,into,two,dimensional,2D,DQ,single,SQ,triple,TQ,even,three,facilitate,acquisition,without,overlap,targeted,characterization,species,surrounding,sites,considered,efficiently,key,structural,information,from,complex,systems
AB值:
0.477693
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