Magnetic susceptibility, hydration

Figure 2. Magnetic susceptibility (y) and resistivity (p) of the bilayer hydrate as a function of absolute temperature T.

Lumry et al. (1962) measured the hydration dependence of the magnetic susceptibility of cytochrome c. Cytochrome c dried by lyophiliza-tion differed in susceptibility from protein dried by dehydration. 

Fia. 86.—The Magnetic Susceptibilities of Hydrated Chromium Salts—Solid and Molten. 

Fig. 40. [Cu(F-pymo)2(H20) (H20)i 25] . (a) Temperature dependences of the magnetic susceptibilities and (b) fM7 product for as-synthesized hydrated, activated [Cu(F-pymo)2] , and loaded with CO2 (l -C02) [08N1].

Zych and Drozdzyhski (1991) synthesized AjUBrg, A = K, Rb, from UBr dissolved in methylcyanide with a large excess of the group 1 bromide. The mixture was acidified with propionic acid and the U(IV) reduced with zinc amalgam. The precipitate which formed upon reduction, a methyl cyanide-hydrate, could be decomposed thermally in high vacuum to yield the anhydrous compounds structural data were not presented. Solid-state absorption spectra taken from thin films and magnetic-susceptibility measurements are consistent with the presence of an cation. The authors indicate that... 

Low-field susceptibility measurements on the magnetic Keplerate species abbreviated as Mo72Fe3o (isolated as the neutral cluster hydrate [Mo Fe CFs (CH3COO) 12 Moyi07(H20)2 H2Moyi08(H20) (H20)91 ] 150H2O) reveal anti-... 

Pinerii and coworkers, and a few other groups, have used ESR and Mossbauer spectroscopy as well as SANS, extended x-ray absorption fine structure (EX.AFS), and magnetization and susceptibility data to analyze local. struct.ure in perfluorinated ionomer membranes and the distribution of water within them isee, for inst,ance, (61-65) 1. The application of the KNDOR (electron nuclear double resonance) technique to deuteriated methanol-swollen Scunples of these membranes has been reportesd i-ecentiy (66). Photophysical methods have also tef n applied in hydration. si.udies of these membranes (67-69). Finally, some NMR results on the same hydrated perfluorinat,ed ionomer.s well as on hydrated... 

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