1. The chemical bond and Mendeleev's periodic law

   • K. B. Yatsimirskii

   OriginalPaper Pages: 377 - 381

2. Application of the virial theorem to the calculation of anharmonic force constants for the water molecule

   • V. V. Rossikhin
   • V. P. Morozov
   • N. T. Storchai

   OriginalPaper Pages: 382 - 388

3. The electronic structure of the aqua-oxo complex of vanadium(IV)

   • G. S. Nikolov
   • K. B. Yatsimirskii

   OriginalPaper Pages: 389 - 395

4. Electronic structure and absorption spectra of acetylacetone and its analogs

   • V. I. Avdeev
   • E. A. Shugam
   • S. D. Nasirdinov

   OriginalPaper Pages: 396 - 402

5. Special features in the chemical structure of phosphorus isocyanates

   • Yu. P. Egorov
   • G. I. Derkach
   • A. S. Tarasevich

   OriginalPaper Pages: 403 - 408

6. Reaction of SeOCF₃ and SeO₂CF₃ groups with π-electron systems in ground and excited states

   • A. E. Lutskii
   • E. M. Obukhova
   • V. G. Voloshchuk

   OriginalPaper Pages: 409 - 412

7. Free electron levels in catalysis

   • N. D. Sokolov
   • A. D. Sutula

   OriginalPaper Pages: 413 - 423

8. Equilibrium in an ideal adsorption layer during multiplet adsorption

   • Yu. S. Khodakov
   • A. A. Berlin
   • Kh. M. Minachev

   OriginalPaper Pages: 424 - 430

9. Determination of the reaction and adsorption rates of a catalyst in a transient state

   • V. M. Belousov
   • A. M. Aizen
   • V. A. Vozovik

   OriginalPaper Pages: 431 - 436

10. Impurity and “surface” states in linear molecular systems

    • S. I. Kubarev
    • I. D. Mikhailov

    OriginalPaper Pages: 437 - 445

11. Investigation of conjugation in the Si-O-C-C-N system by nuclear magnetic resonance

    • V. A. Pestunovich
    • M. G. Voronkov
    • L. I. Libert

    OriginalPaper Pages: 446 - 450

12. Modulation effects in the electron spin echo of biradical systems

    • V. F. Yudanov
    • K. M. Salikhov
    • Yu. D. Tsvetkov

    OriginalPaper Pages: 451 - 455

13. Electron density matrix of bond orders and spin density in a multiconfiguration approximation

    • V. I. Danilov
    • Yu. A. Kruglyak
    • V. I. Pechenaya

    Brief Communications Pages: 456 - 459

14. Use of Pople-Santry-Segal method for calculations concerning the benzene molecule

    • N. P. Borisova
    • V. G. Gavrilov

    Brief Communications Pages: 460 - 462

15. Rydberg corrections for two-electron atomic systems

    • U. I. Safronova

    Brief Communications Pages: 463 - 465

16. Calculation of the force constants of the water molecule on the basis of the simple MO method

    • V. V. Rossikhin
    • V. P. Morozov
    • L. I. Bezzub

    Brief Communications Pages: 466 - 469

17. Calculation of the electron structure and redox capacity of organometallic polychelates based on Β-diketones

    • V. I. Avdeev
    • I. B. Bersuker
    • S. S. Budnikov

    Brief Communications Pages: 470 - 474

18. Thermodynamic characteristics used for estimating the relative catalytic activity of oxides

    • V. V. Popovskii

    Brief Communications Pages: 475 - 476

19. Dipole relaxation in liquid chlorophenols

    • A. E. Lutskii
    • M. F. Shalimov
    • B. A. Tromza

    Brief Communications Pages: 477 - 480

20. A study of the three-dimensional structure of aminodiene molecules by the spectroscopy of intermolecular interactions

    • N. G. Bakhshiev
    • V. V. Perekalin
    • S. M. Kvitko

    Brief Communications Pages: 481 - 483

21. Study of weak hydrogen bonds between aromatic hydrocarbons and alcohols by gas-liquid chromatography

    • R. I. Sidorov
    • A. N. Denisenko
    • S. A. Reznikov

    Brief Communications Pages: 484 - 487

22. Spin-density distribution in the iminoxyl radical 2,2,6,6-tetramethyl-4-piperidinol-1-oxyl

    • Yu. S. Karimov
    • M. K. Makova
    • é. G. Rozantsev

    Brief Communications Pages: 488 - 491

23. Investigation of the hyperfine structure of EPR spectra of a vanadium catalyst for SO₂ oxidation

    • V. M. Mastikhin
    • Ya. Zyulkovski
    • G. M. Polyakova

    Brief Communications Pages: 492 - 495

24. Determination of the electronic structure of tin (II) compounds by nuclear gamma resonance

    • A. N. Murin
    • S. I. Bondarevskii
    • P. P. Seregin

    Brief Communications Pages: 496 - 497

25. EPR spectra of copper(II) chloride crystal solvates

    • V. A. Sil'chenko
    • N. N. Pafomov
    • V. I. Golovorushkin

    Brief Communications Pages: 498 - 500

26. Study of the temperature dependence of spin-lattice relaxation in water

    • A. N. Voronovich
    • L. S. Lilich
    • M. K. Khripun

    Brief Communications Pages: 501 - 502

27. New method of calculating the density of ionic crystals at various temperatures

    • G. A. Krestov
    • N. V. Krestova

    Brief Communications Pages: 503 - 504

28. Program for calculating group overlap integrals in the theory of crystals and coordination compounds

    • A. O. Kitinskii
    • M. Z. Balyavichus

    Letters to the Editor Pages: 505 - 505

29. Program for calculating the frequencies and forms of normal vibrations

    • G. G. Dyadyusha
    • D. P. Khomenko

    Letters to the Editor Pages: 506 - 507