Stability studies solid-state

Murray EP, Tsai T, and Barnett SA. Oxygen transfer processes in (La,Sr)Mn03/Y203-stabilized ZrO, cathodes an impedance spectroscopy study. Solid State Ionics 1998 110 235-243. 

Shinar, J., Tannhauser, D.S., and Silver, B.L. (1985) ESR study of color centers in yttria-stabilized zirconia. Solid State Commun., 56 (2), 221-223. 

Experimental (NMR, X-ray and DSC) and theoretical studies [DFT B3LYP/6-311 + + G (d,p)] by Nieto et al. have permitted to establish the structure of the main tautomeric form of 8-hydroxycarbostyril. " In the gas phase two tautomers, 8-hydroxyquinolin-2(lH)-one and 2,8-quinolinediol show similar stabilities. In solid state two polymorphs of 8-hydro-xyquinolin-2(lH)-one have been isolated and their structures elucidated polymorph A, which crystallizes in orthorhombic space group, and polymorph B, which crystallizes in monoclinic space group. The arrangement of molecules in both structures is characterized by intermolecular N-H... O and 0-H... 0 hydrogen bonds. 

T. Chao, K.J. Walsh, and P.S. Fedkiw, Cyclic voltammetric study of the electrochemical formation of platinum oxide in a Pt/yttria-stabilized zirconia cell, Solid State Ionics 47, 277-285 (1991). 

Reliable information on the thermodynamic stability of group 13/15 adducts is usually obtained by gas phase measurements. However, due to the lability of stibine and bismuthine adducts in the gas phase toward dissociation, temperature-dependent H-NMR studies are also useful for the determination of their dissociation enthalpies in solution [41b], We focussed on analogously substituted adducts t-BusAl—E(f-Pr)3 (E = P 9, As 10, Sb 11, Bi 12) since they have been fully characterized by single crystal X-ray diffraction, allowing comparisons of their thermodynamic stability in solution with structural trends as found in their solid state structures. 

These studies conducted in solution and in the solid state revealed a common 3i4-helical fold stabilized by H-bonds closing 14-membered rings formed between NH and C=0 +2 (see Fig. 2.12A and C). It is noteworthy that the 3i4-helix of j -peptides with L-amino acid-derived chirality centers (Fig. 2.12 A) and the a-helix have opposite polarity and helicity. 

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