The laser dye 4-(dicyanomethylene)-2-methyl-6-( p-dimethylaminostyryl)-4H-pyran (referred to as DCM) was encapsulated in mesoporous MCM-41 and Y-zeolite. The resultant composites were studied by X-ray diffraction, UV-Vis absorption and emission spectroscopies, and fluorescence lifetime spectrophomet
Confined Water in Mesoporous MCM-41 and Nanoporous AlPO4-5: Structure and Dynamics
β Scribed by Nicole Floquet; Jean Paul Coulomb; Nathalie Dufau; Gilles Andre; Remi Kahn
- Publisher
- Springer
- Year
- 2005
- Tongue
- English
- Weight
- 324 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0929-5607
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract __We study the structure and dynamics of hydrogenβbonded complexes of H~2~O/D~2~O and dimethyl sulfoxide (DMSO) by infrared spectroscopy, NMR spectroscopy and ab initio calculations. We find that single water molecules occur in two configurations. For one half of the water monomers both
Acidity of mesoporous HZSM-5 prepared using amphiphilic organosilane template molecules was measured. BrΓΈnsted acid sites were observed in the prepared sample, and the number and the strength of BrΓΈnsted acid sites were determined quantitatively by a method of infrared-mass spectroscopy/temperature-