Framework ordering

Carbb, R., Calabuig, B., Vera, L. and Besalu, E. (1994) Molecular quantum similarity theoretical framework, ordering principles, and visualization techniques. In Advances in Quantum Chemistry, Vol. 25, Lowdin, P.-O., Sabin, J.R. and Zemer, M.C. (Eds.), Academic Press, New York. 

Carbo, R., B. Calabuig, L. Vera, andE. Basalu. 1994. Molecular Quantum Similarity Theoretical Framework, Ordering principles, and Visualization Techniques. 25, 253. 

Natrolite Family. This family also contains four members distinguished by different Si/Al framework ordering and cation content, as shown in Table 12. 

Moreover, recently DES of choline chloride/urea (or malonic acid) have been used as solvents in the synthesis of new coordination polymers, Zn(O30PCH2CO2)NI-E, of open-framework iron oxaphosphates and alumino-phospate zeolite analogues. Generally, the ionic medium not only acts as a solvent but also provides the template cations around which the inorganic frameworks order. 

MOLECULAR QUANTUM SIMILARITY THEORETICAL FRAMEWORK, ORDERING PRINCIPLES, AND VISUALIZATION TECHNIQUES1 2... 

Carbo R, Calabuig B, Vera L, Besalu E. Molecular quantum similarity theoretical framework, ordering principles, and visualization techniques. Adv Quant Chem 1994 25 ... 

Framework Ordering in Aluminophosphate Molecular Sieves Studied by Double Rotation NMR... 

Aluminum-27 Double Rotation NMR spectroscopy (DOR) has been used to investigate framework ordering in the aluminophosphate molecular sieves VPI-5, AIPO4-5, and AIPO4-8. Well-resolved peaks in the Al DOR spectra of both hydrated and dehydrated VPI-5 allow isotropic shifts to be conelated with local framework structure. More distorted aluminum environments are reflected by broader lines in Al DOR spectra of AIPO4-5 and AIPO4-8. 

There is some indication that information of framework ordering and dislocation phenomena in zeolites may be obtained from mid-infrared spectroscopy. The multiplicity of peaks in the asymmetric stretch region in zeolite L, compared with the zeolites O and T with similar Si,Al framework composition and structure group characteristics, may indicate Si,Al ordering in zeolite L, or alternately 2 different Si,Al distributions in the... 

Whereas the majority of dendrimer-based lipophilic-hydrophilic inclusion phenomena discussed thus far results in random guest positioning on a branched framework, ordered interactions in supramolecular assemblies are also of interest. For example, Gonzalez et al. reported the surface modification of poIy(propyl-eneimine)s with cobaltocenium groups that are easily reduced to Co(0). Reaction of the amine termini with I-chlorooarbonylcobaltocenium afforded the metal-terminated dendrimers. The lipophilic, charge-neutral poly-cobaltocenes were rendered H2O soluble via addition of /1-cyclodextrin (36, fi-CD) based on its cylindrical... 

Quantum Similarity Theoretical Framework, Ordering Principles and Visualization Techniques. 

Keywords Available to Promise (ATP), Push-Pull Framework, Order Promising and Fulfill-... 

Zhang W, Glomski B, Pauly TR, Pinnavaia TJ (1999) A new nonionic surfactant pathway to mesoporous molecular sieve silicas with long range framework order. Chtan Commun 18 1803-1804... 

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