polyatomic ion

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polyatomic ion

[‚päl·ē·ə¦täm·ik ′ī·ən]
(chemistry)
An electrically charged species formed by covalent bonding of atoms of two or more different elements, usually nonmetals, for example, the ammonium ion (NH4+).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
And, the total energy ([E.sub.tot]) for the polyatomic gas molecule becomes [1]:
The above equation shows good agreement with experimental data even for polyatomic liquids, but later it was suggested that a slightly lower coefficient value of 2.80 instead of 3 gives a better agreement with the data.
The isobaric mass of polyatomic interferences, which can come from the argon-based plasma such as [sup.40]Ar[sup.35][Cl.sup.+], [sup.38]Ar[sup.37][Cl.sup.+], and so on [23], is also a main drawback of quadrupole mass analyzer.
Because the polyatomic molecules have more arbitrary degrees, it will be necessary to use two-dimensional or multidimensional vibrations.
Morse, "On the vibrations of polyatomic molecules," Physical Review A: Atomic, Molecular and Optical Physics, vol.
Tap-water samples were collected from participants' homes and were tested at the Trace Element Analysis Core at Dartmouth College using inductively coupled plasma mass spectrometry (ICP-MS) with a quadrupole collision cell 7500c Octopole Reaction System ICP mass spectrometer (Agilent) and helium as a collision gas to remove polyatomic interferences, as described previously (Karagas et al.
The total dipole polyatomic a molecule is the sum of their bond dipoles.
Bader, "Binding regions in polyatomic molecules and electron density distributions," Journal of the American Chemical Society, vol.
Herzberg, "Rotation-Vibration spectra of diatomic and simple polyatomic molecules with long absorbing paths.
The determination of Fe by ICP-MS is not recommended, especially in samples with complex matrices because of polyatomic interferences from different isotopes produced by O, Ar, and Ca on [sup.56]Fe ([sup.40]Ar[sup.16][O.sup.+] and [sup.40]Ca[sup.16][O.sup.+]) and [sup.57]Fe ([sup.40]Ca[sup.16][O.sup.1][H.sup.+], [sup.40]Ar[sup.16][O.sup.1][H.sup.+]).