1. Natural spin orbital analysis of diatomic molecular wave functions in terms of generalized diatomic orbitals

   • Klaus Helfrich

   Original Investigations Pages: 163 - 170

2. The electronic spectra of the alkyl, fluorine and chlorine substituted derivatives of silane

   • R. Roberge
   • C. Sandorfy
   • O. P. Strausz

   Original Investigations Pages: 171 - 179

3. Sternheimer antishielding factors of F⁻, Cl⁻, Br⁻ and I⁻

   • Kalidas Sen
   • Alarich Weiss

   Original Investigations Pages: 181 - 187

4. Symmetrie und analytische Struktur der Additionstheoreme räumlicher Funktionen und der Mehrzentren-Molekülintegrale über beliebige Atomfunktionen

   • E. Otto Steinborn
   • Eckhard Filter

   Original Investigations Pages: 189 - 208

5. Extended Hückel calculations on the chemisorption of acetylene on tungsten

   • A. Gavezzotti
   • E. Ortoleva
   • M. Simonetta

   Original Investigations Pages: 209 - 218

6. Ab initio studies of the low-lying π-states of borazine

   • Krishnaswamy Vasudevan
   • Friedrich Grein

   Original Investigations Pages: 219 - 229

7. Systematic approach to extended even-tempered orbital bases for atomic and molecular calculations

   • David F. Feller
   • Klaus Ruedenberg

   Original Investigations Pages: 231 - 251

8. Chemical bonding from superposition of one-center charge densities

   • Ralph G. Pearson

   Short Communication Pages: 253 - 256