Scheibe aggregate formation of cyanine dyes in monolayers

Solvent‐Polarity‐Tunable Dimeric Association of a Fullerene (C60)–N,N‐Dimethylaminoazobenzene Dyad: Modulated Electronic Coupling of the Azo Chromophore with a Substituted 3D Fullerene

“…Various well-known molecular systems that form J-and H-type aggregates include cyanine, [15][16][17][18][19][20][21] perylene bisimide, [22][23][24][25] merocyanine, [26,27] and azobenzene families of dyes. [28][29][30] Among the molecular entities capable of forming ordered aggregates, azobenzenes are unique because of their intrinsic photoresponsive property.…”

J-aggregates of thiacyanine dye organized in LB films: Effect of irradiation of light

“…Two-dimensional aggregates or crystallites of these dyes which are prepared by LB technique or by adsorption at an interface are investigated with special interest in their electronic and optical properties. Above all, J-aggregates [8][9][10][11][12] have been studied extensively which are two-dimensional crystals with chromophores arranged like a brick-stone model in a monolayer at the air-water interface [13][14][15][16][17].…”

Wave energy self-trapping by self-focusing in large molecular structures: A damped stochastic discrete nonlinear Schrödinger equation model

“…Approximations that eliminate the fastest internal vibration modes again lead to systems that are discrete counterparts of the 1D focusing cubic NLS, or coupled systems of such. Two dimensional molecular structures such as Scheibe aggregates [3] lead to similar mathematical models related to the 2D focusing cubic NLS [14,2].…”

“…Scheibe aggregates are highly regular arrangements of molecules in thin films, sometimes a single molecule thick, or with only weak interaction between neighboring layers of molecules. These structures have important biological roles such as in photo-chemical reactions, and one laboratory example is the cyanine dye Scheibe aggregates first studied by Bücher, Kuhn, Möbius et al [3,15]. They establish an arrangement of the molecules in a single layer "brick-wall" lattice, with the dominant dipole interactions being those with six nearest neighboring molecules, arranged in a hexagonal array of approximately dihedral D 2 symmetry (half turns and reflection in two perpendicular axes).…”