isomer

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isomer

 [i´so-mer]
any compound exhibiting, or capable of exhibiting, isomerism. adj., adj isomer´ic.

i·so·mer

(ī'sō-mĕr),
1. One of two or more substances displaying isomerism, for example, l-glucose and d-glucose or citrate and isocitrate. Compare: stereoisomer.
2. One of two or more nuclides having the same atomic and mass numbers but differing in energy states for a finite period of time, for example, 99mTc and 99Tc.
[iso- + G. meros, part]

i·so·mer

(ī'sō-mĕr)
1. One of two or more substances displaying isomerism.
Compare: stereoisomer
2. One of two or more nuclides having the same atomic and mass numbers but differing in energy states for a finite period of time.
[iso- + G. meros, part]

isomer

A chemical compound having the same number of each type of atom (same percentage composition and molecular weight) as another compound, but having different chemical or physical properties.

iso·mer

(ī'sō-mĕr)
1. One of two or more substances displaying isomerism.
2. One of two or more nuclides having the same atomic and mass numbers but differing in energy states for a finite period of time.
[iso- + G. meros, part]
References in periodicals archive ?
We used Hex8.0 software (http://hex.loria.fr) for rigid docking to compute possible interaction COX-1 and COX-2 with Alpha-patchouli alcohol isomers (CID442384, CID521903, CID6432585, CID3080622, CID10955174, and CID56928117) on the interaction site.
[3] have studied 2a in cyclohexane solution and concluded that the preferred form for this dye (at small concentration of 6.5 x [10.sup.-6] M) and also in the solid state (crystals or films) is the isomer II (Scheme 2).
Open chain-like isomers of spiropyrans Could be stabilized, and influence of reverse bleaching cyclization reaction could be reduced by the effect of competitive parallel processes that block either the former spiro carbon atom or the phenoxide oxygen atom and hinder cyclization into original spiro form.
Static and Dynamic Polarizabilities of the DMN Isomers. Table 2 lists the static and frequency-dependent polarizabilities of the DMNs calculated in the gas phase at the CAMB3LYP/[6-31+G.sup.*] level.
This result was in agreement with experimental finding that in which 4R was the predominant isomer (4R:4S, >95%) [14].
The measured torque value in MDR cure curves for each composite plotted in figure 2, which is a direct indication of the sample's shear modulus (resistance to shearing deformation), does not show a drastic change for two different isomers of polyisoprene.
Of the EOAs in the EOA database, 516 (74%) had unique molecular formulas, but 180 of the EOAs were isomers (compounds with the same molecular formula but with different chemical structures).
The cis and trans isomers of cefprozil and 15 were analyzed with a total run time of 4.0 min, giving retention times of 2.07 and 2.36 min for cis- and transcefprozil, respectively, as shown in Figure 3.
Isomers of hexane are the third major group in gasoline after isomers of heptane and octane.
In addition, these HCA derivatives undergo isomerization to produce positional isomers such as di-acylated hydroxycinnamoyl-quinic acid derivatives like 1,3-dicaffeoylquinic acid (1,3-diCQA) or 1,5-diCQA [3-6].