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111.
112.
A general equation for calculating the limit of the ligand interference region with the non-stoichiometric copper sulphide single-crystal electrode is described. The critical ligand concentration can be computed for a preselected maximal error in copper(II) ion determinations. The effect of the composition of the electrode material is discussed. The experimental results for the chloride interference show good agreement with theoretical predictions. 相似文献
113.
Quasiregular mappings in even dimensions 总被引:39,自引:0,他引:39
114.
Dilithium tetrabromonickelate (II) as a source of soft nucleophilic bromide : Reaction with epoxides
Dilithium tetrabromonickelate (II) in THF serves as a source of “soft” nucleophilic bromide and reacts regioselectively with epoxides to give bromohydrins in high yield. 相似文献
115.
An isomorphism is established between eertain compact and noncompact formulations of Abelian gauge theory on a lattice. For weak coupling, the mass gap predicted by the Higgs mechanism is then established. 相似文献
116.
Three types of porous polymers containing different functional groups were synthesized as stationary phases for gas chromatography. The influence of functional groups in the copolymer skeletons on their selectivities was studied. To determine the selectivities of these copolymers, two procedures were applied: the selectivity triangle and the general selectivity. As a reference phase Porapak Q which does not contain any functional groups was used. 相似文献
117.
Tadeusz Bałaban 《Communications in Mathematical Physics》1983,88(3):411-445
This is the third paper of a series, and contains a proof of the bounds on the effective actions needed in the two previous papers. The proof is based on perturbative analysis of renormalization. 相似文献
118.
119.
Tadeusz M. Krygowski Piotr K. Wrona Urszula Zielkowska Christian Reichardt 《Tetrahedron》1985,41(20):4519-4527
Empirical parameters of Lewis acidity, ENT, introduced by Reichardt et al., and Lewis basicity, BKT , introduced by Kamlet and Taft, have been determined for mixtures of water with ten organic solvents. In the case of water/alcohol mixtures a distinct dependence between these acidity and basicity parameters have been found. For the other solvent mixtures the ENT on BKT dependence is more complex even if these parameters are purified from non-specific solute/solvent interactions. 相似文献
120.
Leszek Czuchajowski Stefan Goszczynski Dale E. Wheeler Antoni K. Wisor Tadeusz Malinski 《Journal of heterocyclic chemistry》1988,25(6):1825-1830
(R + S)Meso-[2.2]Paracyclophanyltriphenylporphyrin 3 , a member of a novel class of cyclophanylporphyrins, was obtained and characterized by spectroscopic and electrochemical methods. Compared to meso-tetra[2.2]paracyclophanylporphyrin 1, it represents a simplified structure designed for the investigation of electronic interactions between the [2.2]paracyclophane moiety and porphyrin core and for use in metallation reactions. 相似文献