High-level ab-initio calculations for astrochemically relevant polyynes (HC₂11H), their isomers (C₂H₂) and their anions (C₂W). Zeitschrift fur Phys. Chemie, (223)4-5:447–460, 2009. [PUMA: werner cluster,Intersellar Dissociative enegies,Vibrational theoretische stuttgart chemie anions,Isomerization from:alexanderdenzel coupled electron correlated attachment,Explicitly frequencies theochem] URL