The geometrical structure and absorption spectrum of a cyanine dye aggregate

Emerson, Edward; Conlin, M. A.; Rosenoff, Alan E.; Norland, K. S.; Rodríguez, Hernán B.; Chin, D.; Bird, George R.

doi:10.1021/j100867a003

Cited by 171 publications

(103 citation statements)

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“…[24] for 3,3'-bis(β-carboxyethy1)-5,5'-dichloro-9-methylthiacarbocyanine. Contrary to the dye D-2 forming extended J-aggregates with irregular polygonal shapes the cyanine dye in ref.…”

Section: Some General Remarks On the Staircase Ladder And Brickwork mentioning

confidence: 99%

“…Contrary to the dye D-2 forming extended J-aggregates with irregular polygonal shapes the cyanine dye in ref. [24] forms H-aggregates with morphology of extended stripes with parallel long sides. The stripes have narrow subbands with a repeat distance integer multiples of 2.8 nm; the long molecular axes in subbands are perpendicular to the bands axis.…”

Section: Some General Remarks On the Staircase Ladder And Brickwork mentioning

confidence: 99%

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Molecular Arrangements in Two-Dimensional J-Aggregate Monolayers of Cyanine Dyes

Прохоров¹,

Pozin²,

Lypenko³

et al. 2012

MHC

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Atomic force microscopy was used for the study of two-dimensional J-aggregates monolayer structures of two cyanine dyes with a high-resolution. Two coexisting morphologically different types (i.e. the bilayer rectangular stripes and monolayer curve shaped leaves) were observed for 3,3'-di(γ-sulfopropyl)-4,4',5,5'-dibenzo-9-ethylthiacarbocyanine betaine pyridinium (dye D-1 (пиридиниевая соль 3,3'-ди(γ-сульфопропил)-4,4',5,5'-дибензо-9-этилтиокарбоцианин бетаина, D-1Two-Dimensional J-Aggregate Monolayers of Cyanine Dyes J-агрегатах второго красителя (5,5'-дихлоро-3,3'-дисульфопропилтиацианинат натрия, D-2)

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“…[24] for 3,3'-bis(β-carboxyethy1)-5,5'-dichloro-9-methylthiacarbocyanine. Contrary to the dye D-2 forming extended J-aggregates with irregular polygonal shapes the cyanine dye in ref.…”

Section: Some General Remarks On the Staircase Ladder And Brickwork mentioning

confidence: 99%

Section: Some General Remarks On the Staircase Ladder And Brickwork mentioning

confidence: 99%

Molecular Arrangements in Two-Dimensional J-Aggregate Monolayers of Cyanine Dyes

Прохоров¹,

Pozin²,

Lypenko³

et al. 2012

MHC

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“…The multibands structure in the absorption spectra either with the nerve or biomolecules is ascribed to the formation of aggregates of the dye molecules [12]. The location of blue-shifted absorption bands due to aggregates of cyanine dyes has been described by a relationship, A VN =-(N--1)/NA v~, where A vN denotes the frequency shift from monomer to N-mer band and Av~ denotes that for infinitely large aggregation [5]. By applying the relationship to the absorption spectrum with lecithin liposomes (line (b)), the monomer (vl), dimer (vz) ...... N-mer (vN) bands are calculated and represented by the vertical bars on the abscissa in Fig.…”

Section: Reconstruction Of the Response Spectra And Physicochemical Pmentioning

confidence: 99%

Further studies on absorption changes arising in dye-stained nerves during excitation

Warashina

1980

J. Membrain Biol.

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Changes in light absorption during nerve excitation (absorption responses) were detected from the crab leg nerve, the rabbit vagus, and the rat superior cervical ganglion (SCG) stained with a merocyanine-rhodanine. Dependences of the responses on the wavelength and polarization of the incident light (absorption spectra) showed characteristic features with the respective nerves. In the crab nerve, the pattern of response spectra was precisely analyzed based on the previously proposed scheme, which included the shift of absorption bands and the statistical reorientation of absorption oscillators of the dye molecules in the membrane matrix during nerve excitation. Different patterns of the response spectra between the crab nerve and the rabbit vagus suggested that distinct physicochemical environments of the dye occurred in these two classes of membranes. On the other hand, the characteristic pattern that arose in the rat SCG was explained by its morphological form, that is, unlike those in a bundle of axons, the membrane elements in the ganglion were randomly oriented with respect to the direction of the light polarization.

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“…This can be primarily revealed by the planarity of the phthalocyanine core, which tends to lead to π-π stacking. 5,6 To increase solubility, a number of functional groups have been added to the phthalocyanine framework via attachment to the benzene rings on the periphery of these macrocycles. 7 Most chemically well-dissolved phthalocyanine derivatives, which have weak π-π stacking characteristics, have low semiconducting properties, resulting in low performance of organic photoconductive devices.…”

Section: Introductionmentioning

confidence: 99%

Phthalocyanine Nano Colloids in Water Prepared by Reprecipitation Method

Ishimaru

Iseya

Chen

et al. 2014

Trans. Mat. Res. Soc. Japan

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The syntheses of peripherally tetra-substituted nickel(II), copper(II), zinc(II), and metal-free, phthalocyanines containing 4-aryl (4-phenylsulfanyl, 4-phenylsulfinyl, and 4-phenylsulfonyl) and 4-alkyl (4-iso-amylsulfanyl, 4-iso-amylsulfinyl, and 4-iso-amylsulfonyl) groups were demonstrated to investigate water-dispersible phthalocyanine colloids fabricated by a conventional reprecipitation method. Dynamic light scattering measurements revealed that the prepared colloids were monodispersive.

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The geometrical structure and absorption spectrum of a cyanine dye aggregate

Cited by 171 publications

References 0 publications

Molecular Arrangements in Two-Dimensional J-Aggregate Monolayers of Cyanine Dyes

Molecular Arrangements in Two-Dimensional J-Aggregate Monolayers of Cyanine Dyes

Further studies on absorption changes arising in dye-stained nerves during excitation

Phthalocyanine Nano Colloids in Water Prepared by Reprecipitation Method

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