Aug 20, 1999 · The methods utilized for this purpose are HETLOC,3 selective J-resolved 2D,4 or quantitative HMBC.5 We now report a useful new NMR technique named J-resolved HMBC. …

HMBC (1H detected heteronuclear multiple bond correlation):为1H的异核多碳相关谱，将1H核和 远程 耦合的13C核关联起来，通常2~3个键的质子与碳的耦合信息较多。 释义. 长程异核位移 …

HMBC（Heteronuclear Multiple Bond Correlation，异核多键相关）：为1H的异核多碳相关谱，将1H核和远程耦合的13C核关联起来。也叫C-H远程相关谱, 通常2~3个键的质子与碳的耦合信息 …

Apr 3, 2023 · HMBC is an essential NMR experiment for determining multiple bond heteronuclear correlations in small to medium-sized organic molecules, including natural products, yet its …

Apr 7, 2014 · HMBC is one of the most often used and vital NMR experiments for the structure elucidation of organic and inorganic molecules. We have developed a new, high sensitivity …

May 5, 2000 · The J-HMBC 2D method can afford precise values of 1 H– 13 C and 1 H– 15 N long-range coupling constants. The use of selective or double-selective J-HMBC 2D proved to …

Mar 23, 2011 · Low pass J filter is an element that destroys coherence in the strongest J-coupling 1 H - heteroatom (X nucleus) pairs. Since those have the largest values of J coupling, …

Aug 7, 2009 · An efficient pulse sequence for measuring long-range C-H coupling constants (JC−H) named selective J-resolved HMBC has been developed. This pulse sequence …

In this paper, we demonstrate such J-couplings to 13C5 and present an application of long-range heteronuclear correlation experiments in H2O to the correlation of imino and non …

Aug 20, 1999 · A new NMR pulse sequence that incorporates J-scaling into HMBC enables efficient measurement of heteronuclear long range coupling.