Disproportionation of an element in a zeolite. I. crystal structure of a sulfur sorption complex of dehydrated, fully Cd(super 2+)-exchanged zeolite X. Synthesis of tetrahedral S(sub 4)(super 4+) and n-S(sub 4)(super 2+), two new polyatomic cations of sulfur

Article Abstract:

The crystal structure of a sulfur sorption complex of fully dehydrated, fully Cd(super 2+)-exchanged zeolite X. Cd(sub 46-)Si(sub 100)Al(sub 92)O(sub 384).52S per unit cell was determined by single-crystal x-ray diffraction methods in the cubic space group Fd3 at 21(1) degree Celsius. All 52 sulfur atoms disproportionated upon sorption to give sulfide anions and two new tetrasulfur cations, S(sub 4)(super 4+) and n-S(sub 4)(super 2+).

Electric properties, Sulfur, Chemistry, Physical and theoretical, Physical chemistry, Sulphur

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Zeolite-like sorption of volatile organics in beta-[CuL2] (L = {CF3COCHCOC(CH3)2OCH3}-)

Article Abstract:

The zeolite-lime mode of inclusion into the beta-form is explained. Sorption isotherms determined over a range of temperatures and compared for seven guests differing in size, shape and polarity revealed that sorption occurred even at minimal guest pressure, showing the presence of porosity of the host sorbent even without included species present.

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Sorption of biphenyl in nonacidic faujasitic Y zeolites: modeling and spectroscopic studies

Article Abstract:

The prediction of the sorption energy and sites, conformation, mobility, and vibrational motions of biphenyl (BP) occluded in nonacidic faujasitic Y zeolites are presented. The structure and the flexibility of the BP molecule can explain this striking diffusion behavior in the void space of the faujasitic zeolites.

Thermal properties, Biphenyl (Compound)

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