Sentence examples for multiple bond correlation from inspiring English sources
Some of these peaks correlated with tyrosine region in HMBC spectra (heteronuclear multiple bond correlation) and were assigned as dihydrophenylpropanoids (see Additional file 3).
Fig. 5 Heteronuclear multiple bond correlation (HMBC) of DNPH-glucose.
The methine carbon, which exhibited correlation peaks to both H-1 and H-2 by heteronuclear multiple bond correlation (HMBC) spectroscopy, was assigned to C-3.
Four transients of pulse sequence Zg30 were used to acquire 1H spectra, 99 transients of Zgpg30 were used for acquiring 13C data, and acquiring of heteronuclear multiple bond correlation (HMBC) was achieved.
To resolve the complex 1H and 13C{1H} NMR spectra of copolymers, 2D 1hetero-nuclearuclear single quantum coherence (HSQC), 1H/1H total correlation spectroscopy (TOCSY) and hetero-nuclear multiple bond correlation (HMBC) experiments were conducted.
HMQC (heteronuclear multiple quantum correlation) [26, 27] and HMBC (heteronuclear multiple bond correlation) [27, 28] spectra were recorded with gradient phase cycling, 260 acquisitions and 2 K data over 3.8 kHz in the F2 (1H) dimension, and 1.5 s recycle delay.
2D J-resolved, H-H correlation, total H-H correlation, H-C heteronuclear single quantum coherence, and H-C heteronuclear multiple bonds correlation NMR spectra [ 11– 13] were acquired for selected urine to assign metabolites.
Heteronuclear Multiple-Bond Correlation.
Assignments were performed by analyzing heteronuclear multiple-quantum correlation (HMQC), heteronuclear multiple-bond correlation (HMBC), and correlation spectroscopy (COSY) spectra.
Heteronuclear multiple-bond correlation spectroscopy (HMBC) spectra were acquired using pulsed field gradient coherence selection and a 10-Hz long-range 1H-13C constant constant.
The structure of compound 2a was identified by 2D NMR including heteronuclear multiple-quantum coherence (HMQC), heteronuclear multiple-bond correlation (HMBC) and H H correlation spectrometry (H H COSY) spectra.
