2J, 3J-HMBC:: A new long-range heteronuclear shift correlation technique capable of differentiating 2JCH from 3JCH correlations to protonated carbons
2J, 3J-HMBC:: A new long-range heteronuclear shift correlation technique capable of differentiating 2JCH from 3JCH correlations to protonated carbons
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DOI：
10.1006/jmre.2000.2141
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发表时间：
2000-09-01
影响因子：
2.2
通讯作者：
Martin, GE
中科院分区：
文献类型：
--
作者：
Krishnamurthy, VV;Russell, DJ;Martin, GE
本文报道了一系列新的、手风琴式优化的远程异频移相关技术的发展。在本报告中描述了在IMPEACH-MBC实验中引入的恒定时变延迟的进一步衍生物，星星（选择性定制手风琴F-1重聚焦）算子。将星星算子与CIGAR-HMBC实验中的用户选择的同调调制标度结合到长程异频移相关脉冲序列（2）J，（3）J-HMBC中，首次在质子检测实验中提供了明确区分两键（（2）J（CH））和三键（3）J（CH）与质子化碳的长程相关的方法。(C)北京大学出版社.
The development of a series of new, accordion-optimized long-range heteronuclear shift correlation techniques has been reported. A further derivative of the constant time variable delay introduced in the IMPEACH-MBC experiment, a STAR (Selectively Tailored Accordion F-1 Refocusing) operator is described in the present report. Incorporation of the STAR operator with the capability of user-selected homonuclear modulation scaling as in the CIGAR-HMBC experiment, into a long-range heteronuclear shift correlation pulse sequence, (2)J,(3)J-HMBC, affords for the first time in a proton-detected experiment the means of unequivocally differentiating two-bond ((2)J(CH)) from three-bond ((3)J(CH)) long-range correlations to protonated carbons. (C) 2000 Academic Press.