ionic bond

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Synonyms for ionic bond

a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion

References in periodicals archive ?
Ion pair log [K.sub.f] log [K.sub.fl] log [K.sub.f2] (1: 1) (1: 2) D-I 4.72 10.74 D-II 4.89 10.91 D-III 4.60 10.62 D-IV 4.70 10.71 D-V 4.72 10.81 D-VI 4.63 10.66 D-VII 4.62 10.61 D-VIII 4.54 9.95 Ion pair [DELTA][G.sup.[omicron]] (Kcal) [DELTA] [DELTA] [G.sup.[omicron].sub.1] [G.sup.[omicron].sub.2] (1: 1) (1: 2) D-I -6.4365 -14.64580 D-II -6.6683 -14.87750 D-III -6.2729 -14.48213 D-IV -6.4098 -14.60004 D-V -6.4371 -14.7410 D-VI -6.3137 -14.53670 D-VII -6.3001 -14.46850 D-VIII -6.1912 -13.56847 Table 4: Determination of diaveridine in pure preparation.
The developed method is based on ion pair extraction with bis(2-ethylhexyl) phosphate (BEHPA) and derivatization with isobutyl chloroformate (IBCF).
Metabolites M4 and M4', with retention times at 9.6 and 8.5 min, were observed by scanning of an ion pair of m/z 1065 [right arrow] 936 in the positive ion mode (Supplementary Figure 3(B)).
In order to justify the synergetic effects of the solvent mixture on the polymerization rate, we should consider that, in toluene, thanks to its higher dielectric constant (2.38 at 25[degrees]C instead of 1.92 of heptane [21]), the ion pair will be "solvent-separated" and this would lead to a faster rate of polymerization when compared to the contact ion pair present in heptane [17].
The tested electrode contained Fl-ClTPB ion pair complex with NPhOE had super Nernstian cationic response (above 60 mVdecade-1), the one with b(BP)A (50.7 mVdecade-1) had under Nernstian response to Fl activity in different concentration ranges.
The most sensitive and characteristic parent ion and daughter ion of each reference substance were selected to compose an ion pair, which were then measured after separating with methyl cyanide solution.
In this paper, new and simple atomic absorption spectroscopic and spectrophotometric methods are proposed for determination of some nitrogenous drugs, based on the formation of ion pair associated with Bi(III)-iodide complex, fast green or orange G dyes.
The present research differentiates between practical SAR ([SAR.sub.p]), which is considered for uncorrected ion pair, and actual SAR ([SAR.sub.a]), which is considered for corrected ion pair complexes.
In order to achieve adequate retention, addition of an ion pair reagent or, alternatively, the use of ion exchange chromatography or HILIC (hydrophilic interaction liquid chromatography) is necessary.
Samples were analyzed using atmospheric pressure chemical ionization-tandem mass spectrometry with one precursor-product ion pair being used for quantification and two precursor-product ion pairs being used for confirmation (Table 2).
In solvents with a low D that also lack the ability to solvate ions (hydrocarbons, halohydrocarbons) the interaction does not go beyond the initial hydrogen bond or contact ion pair formation.
Noriaki Nakagawa of Kanebo provided details of a study demonstrating that lactate and K+ as an ion pair play important roles in maintaining the physical properties of the stratum corneum.
The initiator ion pair proceeds to grow by successive addition of monomer molecules.