1. Non-empirical LCAO-MO-SCF-CI calculations on organic molecules with gaussian type functions

   • S. S. Seung
   • M. C. Harrison
   • I. G. Csizmadia

   Commentationes Pages: 281 - 284

2. Molecular orbital energy levels for the sulfate Ion

   • David M. Bishop

   Commentationes Pages: 285 - 291

3. Modellrechnungen zur symmetrischen Vierzentrenbindung. II

   • P. Kadura

   Commentationes Pages: 292 - 299

4. An omega technique study of proton hyperfine coupling constants

   • A. Hinchliffe

   Commentationes Pages: 300 - 305

5. Unrestricted hartree-fock calculation of spin distributions in some radical anions exhibiting restricted rotation about a carbon carbon bond

   • N. K. Ray
   • P. T. Narasimhan

   Commentationes Pages: 306 - 311

6. Structure électronique du borazane BH₃—NH₃

   • A. Veillard
   • B. Levy
   • F. Gallais

   Commentationes Pages: 312 - 318

7. The electronic structure and spectrum of tropone

   • Haruo Hosoya
   • Saburo Nagakura

   Commentationes Pages: 319 - 333

8. Cross sections for transitions between fine structure components of second group excited atoms induced by collisions with noble gas atoms

   • A. I. Voronin
   • V. A. Kvlividze

   Commentationes Pages: 334 - 340

9. An analysis of the polarizabilities in some conjugated molecules

   • Myriam Segre de Giambiagi
   • Mario Giambiagi

   Commentationes Pages: 341 - 357

10. Overlap integrals of clementi orbitals for bonds involving some first row atoms

    • L. Klasinc
    • D. Schulte-Frohlinde
    • M. Randić

    Relatio Pages: 358 - 360

11. Erratum

    Erratum Pages: 360 - 360