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  • Author or Editor: D. Parwate x
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Abstract  

Mössbauer isomer shift // and quadrupole splitting /EQ/ values in a series of isostructural compounds correlate well to give linear relationship provided the sign of electric field gradient /EFG/ is assigned to the EQ. The correlation has been used in predicting the sign of EFG for some monosubstituted pentacyanoferrate/II/ complexes. Usefulness of such correlations and its limitations are presented.

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Abstract  

The -ray induced decomposition of several inorganic nitrates CsNO3, TlNO3, Mg/NO3/2.6H2O, Ca/NO3/2.4H2O, Hg/NO3/2, Hg/NO3/2.2H2O, Pb/NO3/2 and Al/NO3/3.9H2O has been studied at an absorbed dose of {5 Mrads. G/NO 2 / is affected by the outer cation and depends mainly on its valency and ionic size. G/NO 2 / for hydrated mercuric nitrate is always higher as compared to that for the anhydrous mercuric nitrate at various doses. Water of crystallization might provide extra factors to facilitate the decomposition of the hydrated nitrate compared to that for the anhydrous salts. In most cases G/NO 2 / decreases exponentially with dose but in cases of CsNO3, Mg/NO3/2.6H2O and Al/NO3/3.9H2O it varies linearly.

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