C O N T E N T S

Theory of molecular structure and chemical bonding

Zainullina V.M., Zhukov V.P., Zubkov V.G., Tyutyunnik A.P. Electron structure and
chemical bonding in the Sr4Nb17O26 .......................................................................771

Semenov S.G. Quantum-chemical investigation of electronic structure of poly(2,4-
dioxocyclobuta-1,3-diylidene).................................................................................781

Kalninsh K.K. Structure and thermochromism of spiropyranes. Triplet mechanism of
thermobreaking/closing of pyrane ring ...................................................................787

Study of the structure by physical methods

Bakhvalov S.G., Petrova E.M., Livshic A.I., Shubin A.A., Buznik V.M., Denisov V.M.
Studying of the structure of glasses based on gallium and indium trifluorides by
IR and NMR spectroscopy......................................................................................798

Baranovsky S.F., Djimant L.N., Osetrov S.G., Petrenko N.V., Parkes H., Davies D.,
Veselkov A.N. 1H—NMR investigation of complex formation of ethidium
bromide with single-stranded non-complementary deoxytetranucleotide
5-d(GpApApG) in aqueous solution ......................................................................808

Gilinskaya L.G., Zanin Yu.N. The stabilization factors for paramagnetic radicals CO2
 , CO3  and CO3 3 in natural carbonate  apatites..........................................................821

Structure of liquids and solutions

Litinsky G.B. The Kirkwood factor of the dipolar hard sphere fluids. The model of the
hindered molecular rotation ..................................................................................843

Liashenko A.K., Zasetsky A.Yu. Structural transition from water-electrolyte to
electrolyte-water solvent and changes of water molecules dynamics and
properties of solutions ..........................................................................................851

Bobrovnik Z.D., Grehov A.M., Guly I.S. Energetic characteristics of the structures in the
aqueous sucrose solutions ......................................................................................864

Crystal chemistry

Podberezskaya N.V., Naumov D.Yu., Vasileva I.G., Pervukhina N.V., Magarill S.A.,
Borisov S.V. The structure of new polysulfide of dysprosium DyS1,83(Dy6S11) on
X-Ray data ...........................................................................................................872

Imoto H., Naumov N.G., Virovets A.V., Saito T., Fedorov V.E. Primitive cubic anion
packing in the Cs4[Re6Te8(CN)6]2H2O and Ba2[Re6Te8(CN)6]12H2O crystals ..............885

Konchenko S.N., Virovets A.V., Tkachev S.V., Podberezskaya N.V., Varnek V.A. Iron
chalcogenide carbonyl clusters and their heterometallic derivatives.........................894

Ovcharenko V.I., Romanenko G.V., Korobkov I.V., Ikorskii V.N., Ovcharenko I.V.,
Musin R.N., Vostrikova K.E., Podoplelov A.V., Shishkin O.V.,
Struchkov Yu.T. Crystal structure and magnetic properties of the octahedral
Ni(II) complexes with 3-imidazoline nitroxides .....................................................901

Shova S.G., Cadelnic I.G., Gdaniec M., Simonov Yu.A., Jovmir T.C., Meriacre V.M.,
Filoti G., Turta C.I. Syntheses and structural study of trinuclear iron(III)
acetates with the following composition [Fe3O(CH3COO)6(H2O)3]Cl6H2O and
[Fe3O(CH3COO)6(H2O)3][FeCl4]2CH3COOH .......................................................917

Boldyreva E.V., Kuzmina S.L., Ahsbahs H. Kinetics of solid state nitrito-nitro linkage
isomerization of [Co(NH3)5ONO]Br2 at high hydrostatic pressures .........................934

Reviews

Godunov I.A., Abramenkov A.V., Yakovlev N.N. Determination of molecular inversion
potential functions using experimental data: current state and problems ................947

Brief communications

Kosyakov V.I., Shestakov V.A. The lattice parameter dependences on characteristics of
guest — host interaction ........................................................................................962

Bakakin V.V., Drebushak V.A. On unusial for sulphides metal atom configuration in
pentlantite ..............................................................................................................966

Chernega A.N. Molecular and crystal structure of bis-(diisopropylamino)-
perchloropyrocatehole phosphate ...........................................................................969

Karapetyan H.A., Terzian S.S., Topuzian V.O. The crystal and molecular structure of 1-
(nitrophenylsulfonyloxy)benzotriazole ...................................................................973

Erenburg S.B., Bausk N.V., Lavrenova L.G., Mazalov L.N. EXAFS study of structural
changes in Fe(II) polymeric complexes upon optically induced spin transition.........977