Sorption of dimethyl ether in zeolite H-rho studied by deuterium NMR

Journal Article · Thu Oct 09 00:00:00 EDT 1986 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100412a002· OSTI ID:6909533

Luz, Z; Vega, A J

The sorption of dimethyl ether in zeolite H-rho was studied by deuterium NMR of the deuteriated sorbate. The line shapes depend strongly on the temperature and the loading. These changes are not due to dynamic line-broadening effects but rather to changing distributions of sites with different modes of motion. At low loading levels the molecules are rigidly bound and can be seen to undergo 180/sup 0/ flips about the C/sub 2v/ axes. When the number of sorbed molecules exceeds that of the available acid sites (12 per unit cell) most of the molecules appear to be in a physisorbed state.

• Research Organization: E.I. du Pont de Nemours and Co., Wilmington, DE
• OSTI ID: 6909533
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 90:21; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
DATA
DEUTERIUM
DME
ETHERS
EXPERIMENTAL DATA
HYDROGEN ISOTOPES
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
ISOTOPES
LIGHT NUCLEI
LINE BROADENING
MAGNETIC RESONANCE
MATERIALS
MINERALS
NMR SPECTRA
NUCLEAR MAGNETIC RESONANCE
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
RESONANCE
SORPTION
SORPTIVE PROPERTIES
SPECTRA
STABLE ISOTOPES
SURFACE PROPERTIES
TEMPERATURE DEPENDENCE
ZEOLITES