1. Nikolai Nikolaevich Semenov (on his 80th birthday)

   Announcement Pages: 705 - 706

2. Boris Mikhailovich Mikhailov (on his 70th birthday)

   Announcement Pages: 707 - 707

3. PMR investigation of the state of water of hydration in ethylenediaminetetraacetates of rare-earth elements

   • K. I. Popov
   • L. I. Martynenko
   • V. I. Spitsyn

   OriginalPaper Pages: 708 - 712

4. Special features in the adsorption properties of clinoptilolite

   • M. M. Dubinin
   • N. S. Lozhkova
   • B. A. Onusaitis

   OriginalPaper Pages: 713 - 716

5. The application of the method of moments to the determination of the coefficients of diffusion of low molecular weight substances in two-phase polymer systems

   • A. E. Chalykh
   • V. I. Ulin
   • A. D. Aliev

   OriginalPaper Pages: 717 - 721

6. Investigation of the interaction of isobutylene with an antimony-tin catalyst

   • O. S. Morozova
   • A. A. Kadushin
   • O. V. Krylov

   OriginalPaper Pages: 722 - 725

7. Catalytic and magnetic properties of iron ε-nitride and carbonitride in reactions of dehydrogenation and amination of alcohols

   • R. A. Fridman
   • G. A. Kliger
   • I. P. Suzdalev

   OriginalPaper Pages: 726 - 729

8. Concentration of hydrogen atoms in the flames of different gas-air mixtures

   • A. E. Vishnevskii
   • V. P. Bogoslavskii
   • I. B. Samoilov

   OriginalPaper Pages: 730 - 735

9. A quantum-chemical study of the complexing of singlet methylene and water

   • S. P. Kolesnikov
   • A. I. Ioffe
   • O. M. Nefedov

   OriginalPaper Pages: 736 - 739

10. Investigation of charge-transfer complex of poly(N-vinylcarbazole) with fluoranyl

    • V. D. Ogorodnikov
    • I. G. Orlov

    OriginalPaper Pages: 740 - 743

11. Mechanism of the reaction of di-tert-alkyloxoammonium salts with alkyl ketones

    • V. A. Golubev
    • T. S. Rudyk
    • A. L. Aleksandrov

    OriginalPaper Pages: 744 - 750

12. Electron exchange between aromatic nitro compounds and their anion radicals

    • N. M. Katkova
    • I. I. Bil'kis
    • S. M. Shein

    OriginalPaper Pages: 751 - 754

13. Anion radicals in the reaction of substituted 2,6-dinitroanisoles with potassium methoxide

    • V. F. Starichenko
    • V. A. Ryabinin
    • S. M. Shein

    OriginalPaper Pages: 755 - 761

14. Equilibrium CH acidity of organophosphorus compounds

    • É. S. Petrov
    • E. N. Tsvetkov
    • M. I. Kabachnik

    OriginalPaper Pages: 762 - 766

15. ¹³C-NMR spectra of substituted cyclopropanes

    • D. F. Kushnarev
    • G. A. Kalabin
    • T. K. Voropaeva

    OriginalPaper Pages: 767 - 771

16. Investigation of cyclic acetals of substituted benzaldehydes forming a dioxane ring by¹H and¹³C NMR spectroscopy

    • V. P. Lezina
    • A. U. Stepanyants
    • D. L. Rakhmankulov

    OriginalPaper Pages: 772 - 777

17. Investigation of the hydrogen bonding of phosphoryl compounds with chloroform by IR spectroscopy

    • R. R. Shagidullin
    • L. Kh. Ashrafullina
    • V. E. Bel'skii

    OriginalPaper Pages: 778 - 780

18. Vibrational spectra and structure of compounds of the EtP(X)Cl₂ (X=O, S, Se) series

    • R. R. Shagidullin
    • I. I. Vandyukova
    • I. A. Nuretdinov

    OriginalPaper Pages: 781 - 785

19. Analysis of the vibrational spectrum of diphenyl ether

    • I. K. Bogatyreva
    • M. V. Shishkina
    • A. V. Kotov

    OriginalPaper Pages: 786 - 789

20. Stereochemistry of the isomers of 8-p-bromophenyl-6-cyano-2,9-dioxa-1-azabicyclo[4.3.0]nonane

    • L. G. Vorontsova
    • V. M. Shitkin
    • V. A. Tartakovskii

    OriginalPaper Pages: 790 - 794

21. Routes of catalytic hydrogen addition to α, β-unsaturated ketones

    • L. Kh. Freidlin
    • L. I. Gvinter
    • L. N. Suvorova

    OriginalPaper Pages: 795 - 797

22. C₆-dehydrocyclization of paraffinic hydrocarbons on platinized carbon studied by a labelled-molecules technique

    • G. V. Isagulyants
    • O. V. Bragin
    • A. L. Liberman

    OriginalPaper Pages: 798 - 802

23. Selectivity of chromium-aluminum catalysts in dehydrogenation of n-undecane

    • V. É. Ivankovskii
    • E. A. Timofeeva

    OriginalPaper Pages: 803 - 805

24. Depolymerization of isobutylene oligomers on synthetic zeolites in the presence of CO₂

    • A. L. Lapidus
    • V. G. Lipovich
    • Ya. T. Eidus

    OriginalPaper Pages: 806 - 809

25. Study of the heterodiene condensation of 1-alkoxy-1,3-dienes with carbonyl compounds at high pressure

    • S. M. Makin
    • B. S. Él'yanov
    • Yu. E. Raifel'd

    OriginalPaper Pages: 810 - 814

26. Transition-state stereochemistry in the diene condensation of trans-1-alkoxy-1,3-butadienes with carbonyl compounds

    • B. S. Él'yanov
    • S. M. Makin
    • Yu. E. Raifel'd

    OriginalPaper Pages: 815 - 818

27. Photochemistry of acetylene compounds

    • A. Kh. Margaryan
    • É. P. Serebryakov
    • V. F. Kucherov

    OriginalPaper Pages: 819 - 823

28. PMR investigation of the structure of the telomerization products of α-d₁-vinyl chloride with polyhalomethanes

    • T. A. Onishchenko

    OriginalPaper Pages: 824 - 828

29. Effect of diethylamine on polychloroalkanes containing the CHCl₂CH₂CCl₂ group and on related compounds

    • T. T. Vasil'eva

    OriginalPaper Pages: 829 - 832

30. Addition of alkanesulfenyl chlorides to N-allylphthalimide

    • Yu. -V. K. Pikshilingaite
    • G. K. Krasil'nikova
    • O. V. Kil'disheva

    OriginalPaper Pages: 833 - 836

31. Fluorinated heterocumulenes

    • D. P. Del'tsova
    • N. P. Gambaryan

    OriginalPaper Pages: 837 - 840

32. Linear copolymerization of piperylene with propylene

    • U. M. Dzhemilev
    • S. S. Shavanov
    • G. A. Tolstikov

    OriginalPaper Pages: 841 - 843

33. The hydroalumination reaction for some alkenyltrimethylsilanes with diisobutylaluminum hydride

    • V. P. Yur'ev
    • G. A. Gailyunas
    • I. Kh. Aminev

    OriginalPaper Pages: 844 - 847

34. Organoboron compounds

    • B. M. Mikhailov
    • G. S. Ter-Sarkisyan
    • V. G. Kiselev

    OriginalPaper Pages: 848 - 852

35. Unusual cleavage of adducts of trialkyl phosphites with perfluoromethacrylic acid derivatives

    • I. L. Knunyants
    • U. Utebaev
    • E. I. Mysov

    OriginalPaper Pages: 853 - 860

36. Certain O, O-dialkyl-S-(β-N,N-cyclohexylmethylaminoethyl)thiophosphates, selective inhibitors of butyrylcholinesterase

    • A. P. Brestkin
    • I. L. Brik
    • S. A. Trifonova

    OriginalPaper Pages: 861 - 864

37. Chemistry of glycosyl phosphates and their derivatives

    • V. N. Shibaev
    • Yu. Yu. Kusov
    • N. K. Kochetkov

    OriginalPaper Pages: 865 - 869

38. Synthesis of optical antipodes of N-p-[di-(2-chloroethyl)amino]phenacetylamino acids

    • R. B. Klyukene
    • K. I. Karpavichyus
    • O. V. Kil'disheva

    OriginalPaper Pages: 870 - 872

39. Synthesis of difluoromethylenemalonic acid esters and their reactions with trialkyl phosphites

    • I. L. Knunyants
    • U. Utebaev
    • E. I. Mysov

    Brief Communications Pages: 873 - 875

40. Analysis of vibration spectra and study of the structure of π-pentenylnickel halides

    • G. N. Bondarenko
    • A. V. Kotov

    Brief Communications Pages: 876 - 878

41. Reaction kinetics of hydrogen atoms with trifluorobromomethane and tetrafluorodibromoethane

    • L. D. Petrova
    • V. V. Azatyan
    • E. E. Kondenko

    Brief Communications Pages: 879 - 881

42. Study of ignition of carbon monoxide with additions of halogen hydrocarbons near the first ignition limit

    • L. D. Petrova
    • V. V. Azatyan
    • A. N. Baratov

    Brief Communications Pages: 882 - 884

43. The kinetics of complex formation of some transition metals with quercetin and morin

    • Yu. A. Makashev
    • B. P. Sharonov
    • N. E. Makasheva

    Brief Communications Pages: 885 - 886

44. Partial chain transfer constants in the telomerization of ethylene by methyl formate

    • P. A. Zagorets
    • I. N. Bryantsev
    • A. B. Terent'ev

    Brief Communications Pages: 887 - 889

45. Synthesis and disproportionation of methylchlorogermanium hydrides

    • G. Ya. Zueva
    • N. V. Serezhkina
    • V. A. Ponomarenko

    Brief Communications Pages: 890 - 893

46. Synthesis of se rine-containing fragments of the histone H1 fraction

    • V. A. Shibnev
    • O. D. Turaev

    Brief Communications Pages: 894 - 895

47. Reactions of perfluorovinyl ethers under the action of fluorine ions

    • A. A. Glazkov
    • A. V. Ignatenko
    • V. A. Ponomarenko

    Brief Communications Pages: 896 - 898

48. Silylated bis(o-aminophenols)

    • G. S. Bondarevskii
    • A. I. Kalachev
    • G. M. Tseitlin

    Brief Communications Pages: 899 - 900

49. Aldehydes of the dibenzene chromium series

    • A. N. Nesmeyanov
    • L. P. Yur'eva
    • N. N. Zaitseva

    Brief Communications Pages: 901 - 902

50. Hydrogenation of a double bond in a side chain of dibenzene chromium

    • A. N. Nesmeyanov
    • L. P. Yur'eva
    • A. G. Makarovskaya

    Brief Communications Pages: 903 - 905