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Thermal investigations of some AlPO and MeAPO materials prepared in the presence of HF
(Elsevier, Amsterdam, 1997)
Hydrothermal synthesis of chabazite-like AlPO4 in a fluoride medium, using piperidine as the structure directing agent, is also successful in the preparation of transition-metal-modified AlPO products. The transition metal ...
Preparation of aluminophosphate molecular sieves in the presence of nickel( II) and copper( II)
(Butterworth-Heinemann, 1991)
Nickel(ll)-substituted aluminophosphates of structure types 21 and 12 (NiAPO-21 and NiAPO-12) have been prepared hydrothermally in the presence of ethylenediamine as the template. U.v.-visible spectroscopy of NiAPO-21 ...
Synthesis of some new N-monosubstituted fluoroacetamides
(Journal of Fluorine Chemistry, 1992)
Twenty new N-monosubstituted fluoroacetamides with potential toxicological properties have been synthesized by acylation of the corresponding amines with fluoroacetyl chloride. The substituents were cycloalkyl or various ...
Synthesis and FTIR spectroscopic study of some N-monosubstituted propanamides
(Elsevier, Amsterdam, 1997)
In the present work we investigated the conformations of some N-mono-substituted propanamides of general formula CH3CH2CONHR, wherein R is chosen from n-(C-1-C-9)alkyl, cyclo(C-3-C-6)alkyl, some branched (C-3-C-6)alkyl or ...
Mass spectrometric investigations of some N‐cycloalkyl and N‐aryl fluoroacetamides
(Wiley, Hoboken, 1995)
The electron‐ionization induced mass spectra of some N‐monosubstituted fluoroacetamides of the general formula FCH2CONHR, in which the substituent R is (C3C7) cycloalkyl, phenyl, 4‐methylphenyl, 4‐carbo‐methoxyphenyl, ...
Conformations in unsymmetrically N-n-propyl-N-substituted 2-phenylacetamides
(Elsevier, Amsterdam, 1992)
As a part of a study on the structural characteristics of some new various N-alkyl-N-substituted 2-phenylacetamides the infrared and 1H N.M.R. spectra were obtained and interpreted. The synthesis of a various N-n-propyl-N-alkyl ...
Experimental and theoretical study of molecular H-complexes of ketones with diphenyl-p-chlorophenyl carbinol
(Elsevier, Amsterdam, 1992)
The interaction between hydroxy-diphenyl-[4-chlorophenyl]-methane and some typical ketones was studied both in theoretical and experimental ways. It was concluded that the Cl-substituted phenyl group contributes to the ...
The retention behavior of some anilides on unconventional TLC supports
(Akademiai Kiado Zrt, Budapest, 1997)
The TLC retention behavior of formanilide and I substituted acetanilides on starch and cellulose layers has been studied using aqueous mobile phases with methanol, acetonitrile, acetone, and 1-propanol as modifiers, R-Mw ...
Nonlinear optical effects in asymmetric AlGaAs/GaAs semiconductor quantum wells
(Trans Tech-Scitec Publications Ltd, Durnten-Zurich, 1998)
Optical nonlinearities in three-level asymmetric semiconductor quantum wells (QW) are analyzed (optical rectification, second harmonic generation (SHG)). The influence of permanent dipole moments on SHG conversion efficiency ...
Optimization of carboxymethylcellulose production
(Editura Acad Romane, Bucuresti, 1997)
The aim of the study was to obtain water soluble carboxymethylcellulose (CMC) with a high degree of polymerization (DP gt 600) and high degree of substitution (DS gt 800), in industrial conditions, from easily degradable ...