Improved one-dimensional NMR detection of heteronuclear multiple quantum coherence involving the insensitive nucleus Se-77 as demonstrated by the compound C28H28O4Se4W2

CORC > 武汉物理与数学研究所 > 中国科学院武汉物理与数学研究所 > 2011年以前论文发表（包括2011年）

	Improved one-dimensional NMR detection of heteronuclear multiple quantum coherence involving the insensitive nucleus Se-77 as demonstrated by the compound C28H28O4Se4W2
	Du, F ; Liu, ML ; Miao, XJ ; Mao, XA ; Song, LC
刊名	MEASUREMENT SCIENCE & TECHNOLOGY
	1999-03-01
卷号	10 期号:3 页码:170-173
关键词	NMR heteronuclear multiple quantum coherence (HMQC) spectroscopy one-dimensional detection chemical shift modulation signal-to-noise (S/N) improvement
英文摘要	When insensitive spins are detected by one-dimensional (1D) heteronuclear multiple quantum coherence (HMQC) spectroscopy, chemical shift modulation can easily reduce the signal intensity, leading to a poor signal-to-noise ratio (S/N) or sometimes vanishing signals. In this paper it is suggested that the 1D HMQC pulse sequence be modified by inserting a refocusing pi pulse in the multiple quantum evolution period. In this way optimal conditions for a good S/N can be easily achieved. The improved method is demonstrated by H-1/{Se-77} indirect detection using a newly synthesized compound C28H28O4Se4W2 that contains the structure of W-2-Se-CH2C6H5.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Multidisciplinary ; Instruments & Instrumentation
研究领域[WOS]	Engineering ; Instruments & Instrumentation
关键词[WOS]	1D ; SPECTROSCOPY ; COUPLINGS ; SPECTRA ; PROTON
收录类别	SCI
语种	英语
WOS记录号	WOS:000079064900010
公开日期	2015-12-01
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/8419]
专题	武汉物理与数学研究所_2011年以前论文发表（包括2011年）
作者单位	1.Chinese Acad Sci, Wuhan Inst Phys & Math, Lab Magnet Resonance & Atom Mol Phys, Wuhan 430071, Peoples R China 2.Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China
推荐引用方式 GB/T 7714	Du, F,Liu, ML,Miao, XJ,et al. Improved one-dimensional NMR detection of heteronuclear multiple quantum coherence involving the insensitive nucleus Se-77 as demonstrated by the compound C28H28O4Se4W2[J]. MEASUREMENT SCIENCE & TECHNOLOGY,1999,10(3):170-173.
APA	Du, F,Liu, ML,Miao, XJ,Mao, XA,&Song, LC.(1999).Improved one-dimensional NMR detection of heteronuclear multiple quantum coherence involving the insensitive nucleus Se-77 as demonstrated by the compound C28H28O4Se4W2.MEASUREMENT SCIENCE & TECHNOLOGY,10(3),170-173.
MLA	Du, F,et al."Improved one-dimensional NMR detection of heteronuclear multiple quantum coherence involving the insensitive nucleus Se-77 as demonstrated by the compound C28H28O4Se4W2".MEASUREMENT SCIENCE & TECHNOLOGY 10.3(1999):170-173.