1. From the editors

   EditorialNotes Pages: i - i

2. Internal asymmetry and hindered motion in coordination compounds

   • I. B. Bersuker

   OriginalPaper Pages: 1 - 4

3. Relaxation in a double potential well

   • N. N. Korst
   • E. E. Nikitin

   OriginalPaper Pages: 5 - 11

4. Transitions between fine-structure components in resonance interactions for alkali metals

   • M. Ya. Ovchinnikova

   OriginalPaper Pages: 12 - 16

5. Atomic interactions in the hydrides and alkyls of C, Si, Ge, and Sn

   • Yu. P. Egorov

   OriginalPaper Pages: 17 - 23

6. Orbital electronegativity and interaction of atoms in chemical compounds

   • K. B. Yatsimirskii

   OriginalPaper Pages: 24 - 27

7. Photopolymerization mechanisms of vinyl compounds: role of the triplet state of the monomer in initiation

   • V. A. Krongauz

   OriginalPaper Pages: 28 - 32

8. Thermochemistry of nonaqueous solutions of electrolytes: I. Heats of solution of NaI at 25 and 2. 5° and KI at 25° in ethylene glycol

   • K. P. Mishchenko
   • V. P. Tungusov

   OriginalPaper Pages: 33 - 35

9. Thermochemistry of nonaqueous solutions of electrolytes: II. Heat of solution of sodium iodide in water-dioxane

   • K. P. Mishchenko
   • S. V. Shadskii

   OriginalPaper Pages: 36 - 39

10. Kinetics of elementary processes at the surface of a solid

    • V. I. Osherov

    OriginalPaper Pages: 40 - 43

11. Transfer of electron excitation energy to vibrational degrees of freedom in complex molecules. Part I

    • A. A. Ovchinnikov

    OriginalPaper Pages: 44 - 50

12. Theory of paramagnetic spin-lattice relaxation in solids. Part I

    • I. V. Aleksandrov

    OriginalPaper Pages: 51 - 59

13. Shapes of ESR lines in magnetically dilute solids. Part 2

    • I. V. Aleksandrov

    OriginalPaper Pages: 60 - 64

14. Deduction of structures of lanthanoid coordination compounds from absorption spectra

    • K. B. Yatsimirskii
    • N. K. Davidenko
    • T. V. Ternovaya

    OriginalPaper Pages: 65 - 68

15. Oxygen isotope exchange in oxygen-bearing compounds of uranium

    • E. G. Lavut
    • Vikt. I. Spitsyn

    OriginalPaper Pages: 69 - 75

16. Orientation in nucleophilic substitution in excited molecules of quaternary salts of nitrogen heterocyclics

    • G. G. Dyadyusha
    • E. A. Ponomareva

    Brief Communications Pages: 76 - 77

17. Electron spin resonance in compounds of Mo(V) with diethyldithiophosphoric acid

    • N. S. Garif'yanov
    • M. Kozyrev
    • V. N. Fedotov

    OriginalPaper Pages: 77 - 79

18. An additive scheme for the mean frequency in the NQR spectra of organochlorosilanes

    • M. G. Voronkov
    • I. P. Biryukov

    Brief Communications Pages: 79 - 80

19. NQR spectra of chlorogermanes

    • M. G. Voronkov
    • I. P. Biryukov

    Brief Communications Pages: 80 - 82