%0 Journal Article %1 schreck2019selfassembl %A Schreck, Maximilian H. %A Röhr, Merle I. S. %A Clark, Timothy %A Stepanenko, Vladimir %A Würthner, Frank %A Lambert, Christoph %D 2019 %J Cemistry - A European Journal %K cells molecular myown %P 2831-2839 %R 10.1002/chem.201805685 %T A Self-Assembl ed Unit Comprising 12 Squaraine Dyes Built Up from TwoStar-ShapedHexasquara inyl-Benzene Molecules %V 25 %X We describe the aggregate formation and optical properties of astar-shaped hexaarylbenzene with six squar-aine chromophores (= hexasquarainyl benzene). Comprehen-sive concentration-dependence studies in acetone/CHCl3 mixtures reveala strong propensity to form discrete dimeric aggregates with ahighbinding constant in excess of 106 m@1.Inthis context, alarge hypsochromic shift of almost 2700 cm@1 was found in the absorption spectrum, indicating H-typeexciton coupling. The aggregate band is character-ised by avery small band width of only 560 cm@1,probably causedbyexchange narrowing. Both experimental and com-putational methods were used to elucidate the supramolec-ular aggregate structure, which is assumed to consistoftwo stacked hexasquarainyl benzene monomers.

@article{schreck2019selfassembl, abstract = {We describe the aggregate formation and optical properties of astar-shaped hexaarylbenzene with six squar-aine chromophores (= hexasquarainyl benzene). Comprehen-sive concentration-dependence studies in acetone/CHCl3 mixtures reveala strong propensity to form discrete dimeric aggregates with ahighbinding constant in excess of 106 m@1.Inthis context, alarge hypsochromic shift of almost 2700 cm@1 was found in the absorption spectrum, indicating H-typeexciton coupling. The aggregate band is character-ised by avery small band width of only 560 cm@1,probably causedbyexchange narrowing. Both experimental and com-putational methods were used to elucidate the supramolec-ular aggregate structure, which is assumed to consistoftwo stacked hexasquarainyl benzene monomers.}, added-at = {2019-03-11T13:12:33.000+0100}, author = {Schreck, Maximilian H. and Röhr, Merle I. S. and Clark, Timothy and Stepanenko, Vladimir and Würthner, Frank and Lambert, Christoph}, biburl = {https://www.bibsonomy.org/bibtex/250ab2c4fbfa32f292de3fc5105be5d39/wuerthner_group}, doi = {10.1002/chem.201805685}, interhash = {3fde7c79e8310516622c08cb3cc53082}, intrahash = {50ab2c4fbfa32f292de3fc5105be5d39}, journal = {Cemistry - A European Journal}, keywords = {cells molecular myown}, month = {March}, pages = {2831-2839}, timestamp = {2019-03-27T09:35:20.000+0100}, title = {A Self-Assembl ed Unit Comprising 12 Squaraine Dyes Built Up from TwoStar-ShapedHexasquara inyl-Benzene Molecules}, volume = 25, year = 2019 }