1. Valentin Alekseevich Kargin (on his sixtieth birthday)

   Announcement Pages: 1 - 1

2. Konstantin Titovich Poroshin (on his sixtieth birthday)

   Announcement Pages: 2 - 2

3. Existence of ZR=O and Hf=O multiple bonds in solutions of complex zirconyl and hafnyl salts

   • I. P. Lipatova
   • E. I. Semenova

   Inorganic and Analytical Chemistry Pages: 3 - 6

4. Dipole moments and the structure of certain polycyclic derivatives of hexachlorocyclopentadiene

   • B. A. Arbuzov
   • A. N. Vereshchagin
   • E. S. Batyeva

   Physical Chemistry Pages: 7 - 13

5. Study of the structure and reactivity of nitrogen-containing derivatives of carbonyl compounds

   • Yu. P. Kitaev
   • G. K. Budnikov

   Physical Chemistry Pages: 14 - 18

6. Rate constants and mechanism of reactions of oxygen atoms with ethanol and propionaldehyde

   • L. I. Avramenko
   • R. V. Kolesnikova
   • G. I. Savinova

   Physical Chemistry Pages: 19 - 22

7. Theory of thermal ignition

   • V. G. Abramov
   • V. T. Gontkovskaya
   • A. G. Merzhanov

   Physical Chemistry Pages: 23 - 25

8. Investigation of the reaction of isotopic exchange of hydrogen of alkyl-substituted cyclopenta-dienylmanganesetricarbonyls in acid media

   • A. N. Nesmeyanov
   • D. N. Kursanov
   • K. N. Anisimov

   Physical Chemistry Pages: 26 - 29

9. Mobility of hydrogen atoms in the methyl group of methyl ketones of the cene series

   • N. V. Kislyakova
   • V. N. Setkina
   • D. N. Kursanov

   Physical Chemistry Pages: 30 - 33

10. ISotopic exchange of cyclohexane with deuterium over atomized metallic catalysts

    • A. A. Balandin
    • B. S. Gudkov
    • R. M. Fedorovich

    Physical Chemistry Pages: 34 - 36

11. Investigation of the mechanism of the dehydration of butanol-2 over fluorinated aluminum oxide using radiocarbon C¹⁴

    • G. V. Isagulyants
    • Yu. I. Derbentsev
    • A. A. Balandin

    Physical Chemistry Pages: 37 - 40

12. Investigation of the dehydration of pentanol-1 and cyclohexanol in the presence of zirconium phosphate

    • V. Z. Sharf
    • A. S. Nekrasov
    • L. Kh. Freidlin

    Physical Chemistry Pages: 41 - 43

13. Investigation of the dehydrogenating activity of polyarylenequinones

    • A. A. Berlin
    • B. I. Liogon'kii
    • A. I. Smol'chenko

    Physical Chemistry Pages: 44 - 48

14. Polymers with a system of conjugation

    • A. A. Berlin
    • M. I. Cherkashin
    • I. P. Chernysheva

    Physical Chemistry Pages: 49 - 54

15. Dissociation constants of certain nitroalkanes in aqueous ethanol

    • A. I. Ivanov
    • V. I. Slovetskii
    • S. S. Novikov

    Physical Chemistry Pages: 55 - 59

16. Some tetrazolo-[1,5-b]- and s-Triazolo-[4,3-b]-pyridazines and their IR spectral characteristics

    • I. B. Lundina
    • Yu. N. Sheinker
    • I. Ya. Postovskii

    Physical Chemistry Pages: 60 - 63

17. Some polyfluorinated enynes

    • I. L. Knunyants
    • E. Ya. Pervova

    Organic and Biological Chemistry Pages: 64 - 67

18. ω-Phenylperfluoro-α-olefins andω-phenylper-fluoroalkanoic acids

    • I. L. Knunyants
    • V. V. Shokina

    Organic and Biological Chemistry Pages: 68 - 71

19. Addition of dialkylhydroaluminums to conjugated dienic hydrocarbons

    • L. I. Zakharkin
    • L. A. Savina

    Organic and Biological Chemistry Pages: 72 - 77

20. Mercuric trichloroacetate

    • F. K. Velichko
    • L. A. Nikonova
    • G. K. Semin

    Organic and Biological Chemistry Pages: 78 - 80

21. Reactions of aromatic aldehydes with trialkylsilanes in presence of metal chlorides

    • N. E. Glushkova
    • N. P. Kharitonov

    Organic and Biological Chemistry Pages: 81 - 86

22. Alkyl bis(trichloro-t-alkyl) phosphites

    • V. K. Khairullin
    • V. N. Eliseenkov

    Organic and Biological Chemistry Pages: 87 - 91

23. Preparation of trichloro-t-alkyl N-alkyl-P-aryl-phosphonamidites and S-alkyl O-(trichloro-t-alkyl) arylphosphonothioites

    • V. K. Khairullin
    • M. A. Kuryleva
    • T. I. Sovchuk

    Organic and Biological Chemistry Pages: 92 - 95

24. Corticosteroid analogs

    • A. A. Akhrem
    • A. M. Moiseenkov

    Organic and Biological Chemistry Pages: 96 - 101

25. Corticosteroid analogs

    • A. A. Akhrem
    • A. M. Moiseenkov
    • V. A. Dubrovskii

    Organic and Biological Chemistry Pages: 102 - 106

26. Transformed steroids

    • A. A. Akhrem
    • A. V. Kamernitskii
    • A. M. Moiseenkov

    Organic and Biological Chemistry Pages: 107 - 112

27. Reduction of 6-methoxy-1-indanone with alkali metals in liquid ammonia

    • K. K. Pivnitskii
    • I. V. Torgov

    Organic and Biological Chemistry Pages: 113 - 117

28. Stereochemistry of cyclic compounds

    • A. S. Onishchenko
    • A. L. Shabanov
    • V. F. Kucherov

    Organic and Biological Chemistry Pages: 118 - 122

29. Chemistry of acetals

    • S. S. Yufit
    • Zh. A. Krasnaya
    • V. F. Kucherov

    Organic and Biological Chemistry Pages: 123 - 127

30. Effect of the character of the N-substituent in 4-piperidones on the stereochemistry of phenyllithium synthesis

    • É. A. Mistryukov
    • N. I. Aronova

    Organic and Biological Chemistry Pages: 128 - 132

31. Effect of substituents on the configuration of cis-octahydro-4H-1-pyrindin-4-ones and cis-octahydro-1-pyrindin-4-ols

    • É. A. Mistryukov
    • N. I. Oronova

    Organic and Biological Chemistry Pages: 133 - 137

32. Addition of dichlorocarbene to vinyl ethers

    • M. F. Shostakovskii
    • A. A. Nikiforov
    • V. V. Keiko

    Organic and Biological Chemistry Pages: 138 - 141

33. Reactions of diols and epoxides

    • N. I. Shuikin
    • M. Bartok
    • B. Kozma

    Organic and Biological Chemistry Pages: 142 - 145

34. Synthesis of polyesters and poly(ester-amides) with three-dimensional molecular structures

    • K. A. Andrianov
    • N. I. Tsomaya
    • L. M. Khananashvili

    Organic and Biological Chemistry Pages: 146 - 148

35. Reactions of 1,1-disubstituted hydrazines with derivatives ofα,β-unsaturated acids

    • N. P. Zapevalova
    • L. A. Ovsyannikova
    • T. A. Sokolova

    Organic and Biological Chemistry Pages: 149 - 150

36. Structural changes in synthetic sodium zeolites of the chabazite-gmelinite group

    • É. É. Senderov
    • T. N. Shishakova

    Brief Communications Pages: 151 - 153

37. Synthesis of di- and tri- substituted ferrocenes via mono- and di-(N,N-dimethylaminomethyl)-ethylferrocenes

    • A. N. Nesmeyanov
    • É. G. Perevalova
    • L. S. Shilovtseva

    Brief Communications Pages: 154 - 154

38. Rate of bromination as a function of the structure of crotonic acid derivatives

    • K. M. Aleev
    • S. N. Ushakov

    Brief Communications Pages: 157 - 158

39. Mono- and di-(N,N-dimethylaminomethyl)-methylferrocenes

    • A. N. Nesmeyanov
    • É. G. Perevalova
    • A. A. Ponomarenko

    Brief Communications Pages: 159 - 162

40. Dibenzenechromium and its homologs as catalysts for some reduction reactions

    • D. D. Mozzhukhin
    • B. G. Gribov
    • M. L. Khidekel'

    Brief Communications Pages: 163 - 165

41. Mechanism of the 1,3-dipolar cycloaddition of nitrone ethers

    • V. A. Tartakovskii
    • A. A. Onishchenko
    • S. S. Novikov

    Brief Communications Pages: 166 - 168

42. Absorption spectra of some free radicals of the diphenylnitrogen oxide series

    • M. N. Volkotrub
    • É. G. Rozantsev
    • L. A. Skripko

    Brief Communications Pages: 169 - 171

43. Synthesis of phosphorous triazetidide and esters of phosphorazetididous acids

    • N. P. Grechkin
    • R. N. Khamitov

    Brief Communications Pages: 172 - 175

44. Possibility of using Kovac indices in gas-chromatographic analysis on polar phases

    • R. V. Golovnya
    • V. P. Uralets

    Brief Communications Pages: 176 - 177

45. Synthesis of tertiary alkoxy- and alkylthioenediynic alcohols

    • A. N. Volkov
    • A. V. Bogdanova
    • L. A. Vladimirova

    Brief Communications Pages: 178 - 180

46. Pulse radiolysis of aqueous solutions of sulfuric acid

    • A. K. Pikaev
    • V. I. Zolotarevskii

    Brief Communications Pages: 181 - 182

47. The radiolysis of aqueous sulfuric acid solutions of methyl alcohol

    • G. K. Sibirskaya
    • A. K. Pikaev

    Brief Communications Pages: 183 - 185

48. Production of trimethylchlorogermane, methylbromogermanes, and propyltrichlorogermane by direct synthesis

    • G. Ya. Zueva
    • N. V. Luk'yankina
    • V. A. Ponomarenko

    Brief Communications Pages: 186 - 188

49. Melting of potassium peroxide

    • A. B. Tsentsiper
    • T. I. Rogozhnikova

    Brief Communications Pages: 189 - 191

50. New reaction of tetranitromethane

    • K. V. Altukhov
    • V. A. Tartakovskii
    • S. S. Novikov

    Brief Communications Pages: 192 - 194