vicinal


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vicinal

[′vis·ən·əl]
(organic chemistry)
Referring to neighboring or adjoining positions on a carbon structure (ring or chain).
References in periodicals archive ?
The HMBC correlations between the proton at [[delta].sub.H] 6.88 (H-6') and [[delta].sub.H] 6.67 (H-5') with that of [[delta].sub.C] 78.4 (C-2) and two oxygenated [sp.sup.2] vicinal quaternary carbons at [[delta].sub.C] 144.6 (C-4') and 144.7 (C-3') further support the ABX multiplicity pattern of ring B confirming the exact location of the two hydroxyl groups to be at C-3' and 4' positions.
Lower row: autoradiographic analysis of the corresponding vicinal tissue slices using [[sup.18]F]FE@SUPPY.
Since mucus consists of glycoproteins with oxidizable vicinal diols and/or glycogen, goblet cells were stained as magenta in color with PAS method (Figs.
Its presence is vicinal with the rise and fall of the nations body politic.
The defined specifications for the cell scoring11 include: unimpaired cytoplasm, smooth position of the cell, little or no detritus, smooth and normal nucleus, and little or no overlapping with the vicinal cells.
In addition, owing to the differences in vicinal atoms, the octahedral sites fall into three types, while there is only one type of tetrahedral site (Figure 2).
The basic idea of the Neighboring Support Vector Classifier (NSVC) is to build new vicinal kernel functions, obtained by supervised clustering in feature space.
PIC1 contains vicinal cysteine residues at positions 9 and 10 of the peptide.
Moreover, the effect of metal substrate was also tested: Ag substrate is comparably suited for Glaser coupling [25, 26], and Glaser coupling can be used highly efficiently to generate linear oligomer/polymer along the step-edges of the noble metal vicinal surface while inhibiting a variety of side-reactions resulting in irregularly branched polymeric networks [27].
By comparing among five facial components, the mean errors of nose and eyes given in Tables 3 and 4 do not change obviously across three datasets, because the vicinal textural information of eyes is easy to recognize andthe textural informationaroundnosehas alesspossibility to be occluded.
Although GSH conjugation generally represents a cell-protective process, this reaction sometimes produces cytotoxic, genotoxic, or mutagenic metabolites in the presence of several drugs, such as acetaminophen [3, 4], and industrial chemicals, such as geminal or vicinal dihaloalkanes [5, 6].