The title compounds are generated and characterized in the gas phase by tandem mass spectrometry (neutralization‐reionization mass spectrometry); it is demonstrated that both even and odd‐numbered polycarbon disulfides S(Cn)S(n = 2–6) are stable species. The elusiveness of the even‐numbered analogues (n = 2, 4, 6) in the condensed phase must be due to facile intermolecular reactions.

No abstract

Organic Electron Conductors and Precursors. V. Synthesis of Poly (organylthio‐acetylenes) Poly(bis‐organylthio‐acetylenes) 2 and poly(mono‐organylthio‐acetylenes) 3 have been synthesized by complex catalyzed polymerization of the corresponding acetylenes (4 resp. 5). Yields and properties of the polymers 2, 3 depend on reaction conditions, the catalyst and the nature of the acetylenes. Relations between these influence factors are discussed.

Die Reaktion zu 4 ist ein weiterer Beweis fur die Moglichkeiten eines intramolekularen Angriffs an vinylogen Systemen uber rine mogliche Ring-Ketten-Tautomerie, wie es am Beispiel der Perhydrothiazinonbildung von Tukeshima [6] gezeigt wurdc.

The as yet unknown benzo‐tri(1,2‐dithiet) 2 can be generated as a stable neutral molecule in beam experiments by subjecting C6S 6−˙ to neutralization reionization mass spectrometry.