Acta Chimica 52. (1967)

1. szám

Hakdy, Gy. s. Nyitray, К. Hardy, Gy. and Nyithay, K.: Investigations in the Field of Radiation-Induced Solid State Polymerization, XVIII. Monoallyl Norhornene Dicarboxylate and some of its Binary Systems ............................................................................................................... 105 Hardy, Gy., Varga, J., Nagy, G., Varga, E. and Sára, L.: Investigations in the Field of Radiation-Induced Solid State Polymerization, XIX. Solid State Polymerization in Binary Systems .......... .................................................................................................. 219 Hardy, Gy., Varga, J., Nagy, G., Cser, F. and Erő, J.: Investigations in the Field of Radiation-Induced Solid State Polymerization, XX. Characteristics of the y-ray Initiated Solid State Polymerization of N-vinylsuccinimide .................................. 305 Hargittai, I. s. Vilkov, L. V. Hoste, J. s. Adams, F. Hoste, J. s. Massart, D. L. Kiss, Á. I. s. Martin, A. Kozma, В. s. Bartók, M. Légrádi, L.: New Acid-Base Indicators, II — III. 1 —4’(-Nitrobenzene)-2-acetylhydrazine and 2,4-dinitrophenylpyridinium Chloride ...................................................................... 7 Lengyel, T.: Investigations on Ion-Exchange Equilibria with Radioactive Tracer Method, IX. Theory and Use of Extractive Ion-Exchange in the Separation of some Lan­thanons ..................................... 375 Lengyel, T.: Investigations on Ion-Exchange Equilibria with Radioactive Tracer Method, X. Application of the Gradient Elution Technique in Extractive Ion-Exchange Separation.................................................................................................................................. 391 Martin, A., Szaró, G. T., Dézsi, I. and Kiss, Á. I.: Mössbauer Spectra of Iron (II) Complexes of some Pyridine Derivatives ...................................................................... 215 Massart, D. L., Sainte, G. and Hoste, J.: Thin Layer Chromatography of the Rare Earths .............. 229 Mészáros, M. s. Müller, A. Mlinkó, S., Gács, I. and Szarvas T.: Production of Carbon Dioxide Counter Gas for the Gas Analysis of '’C-Labelled Organic Compounds in the Proportional Region 359 Müller, A., El-Sawy, М. M., Mészáros, M. and Ruff, F.: The Reaction of 1-Aryl-Isobenzopyrylium Salts with Ammonia, II...................................................................... 261 Nagy, G. s. Hardy, Gy. Nagy, Gy. s. Upor, E. Nagy, J., P'erenczi-Gresz, S. and Farkas, R.: Investigation of the Molecular Structures of Alkyl and Aryl Alkoxysilanes, I. Problems of the Molecular Structure of Tetra­alkoxylanes .............................................................................................................................. 319 Nagy, L. G.: Non-destructive and Destructive Neutron Activation Analysis of the Impurities of Silicon of Semiconductor Purity .............................................................. 365 Nemes, L.: Normal Coordinate Analysis of Nitric Acid and Nitryl Halides, I. Calculation of Symmetry Force Constant Ranges for Planar XZY, Molecules by Digital Computer.................................................................................................................................... 169 Nemes, L.: Normal Coordinate Analysis of Nitric Acid Nitryl Halides, II. Results of Normal Coordinate Analysis for N0,0, N02F and NO,(OH) Molecules. Applica­tion of the Hybrid Orbital Force Field for sp2 Hybridized Central Nitrogen Atom 179 Nemes, L.: Normal Coordinate Analysis of Nitric Acid and Nitryl Halides, III. Calculation of Vibrational Forms; Study of the Multiplicity and Frequency Assignment Problems.................................................................................................................................... 189 Nógrádi, M. s. Farkas, L. Nyitray, K. s. Hardy, Gy. Nyitray, K. and Hardy, Gy.: A Study of the Radical Polymerization of some Norbor­nene Derivatives ...................................................................................................................... 89 Nyitray, K. and Hardy, Gy.: The Radical Copolymerization ofNorbornene Derivatives with Maleic Anhydride ........................................................................................................... 99 Pulay, P.: On the Parameter Form of Force Constants Matrix, III. The Numerical Method..................................................................................................................................... 49

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