TABLE 1; [sup.1]H NMR chemical shift
([delta]) data of pyrimethanil, HP/[beta]/CD, and pyrimethanil/HP-[beta]-CD inclusion complex.
The 1D NMR data of 2 (Table 1), recorded in DMSO-[d.sub.6], showed a signal for the conjugated carbonyl carbon (C-4) at a chemical shift
lower than that of compound 1 ([[delta].sub.C] 173.7), which is suggestion for the absence of the sugar moiety at C-3.
at 1.4~1.6 (peak c and peak d), 2.4 (peak b), and 4.1 ppm (peak e) can be assigned to the signal of independent methylene protons, carbonyl group adjacent to methylene protons, and oxygen atoms in acyloxy group adjacent to methylene protons in PCL unit, respectively.
1H chemical shifts
were expressed in ppm relative to the solvent shift as chemical standard.
Meanwhile, two peaks at 4.14 ppm and 3.66 ppm chemical shift
, representing lactate and ethanol respectively, were observed in the co-cultures.
The accuracy of soft tissue dimensional measurement can be affected by chemical shift
resulting from fat and adipose tissue.
[49, 50] using perfluoroalkyl iodide involved in a halogen bonding system where secondary iodide invariably was found to give larger change in the F chemical shift
than a primary iodide.
NMR [sup.1]HN and [sup.15]N Backbone Amide Chemical Shift
Table 3: [DELTA]i value of -[CH.sub.2] increased by the substituent group (X or Y) in X-[CH.sub.2]-Y Substituent group [DELTA]i Substituent group [DELTA]i -[CH.sub.3] 0.47 -CO-OR 1.55 -COR 17 -OCO-R 3.13 -Br 2 33 -[C.sub.6][H.sub.5] 1.85 -OR 2.36 where 0.23 is the basic number of -[CH.sub.2] protons, and [DELTA]i is the protonational chemical shift
increase of -[CH.sub.2] protons.
The [sup.31]P NMR spectra of the other NaOH-EDTA soil extracts, which consist of four pairs of control and P-treated soils, contain signals in four diagnostic chemical shift
regions, orthophosphate (6.5-5.3 ppm), orthophosphate monesters (5.3-2.6 ppm), orthophosphate diesters (2.0 to -1.0 ppm), and pyrophosphate (-4.5 to -5.5 ppm) (Fig.
They showed that the anumeric proton for [alpha]-naphthol glucoside has a chemical shift
of [[delta].sub.H] 5.41 and [beta]-naphthol glucoside [[delta].sub.H] 5.18.
The spectra of original and ionoactivated ash samples exhibit broad resonance in the chemical shift
range from -80 to -110 ppm.