Host–guest composite materials of dyes loaded zeolite LTL for antenna applications

Insuwan, Wilaiporn; Jungsuttiwong, Siriporn; Rangsriwatananon, Kunwadee

doi:10.1016/j.jlumin.2014.12.031

Cited by 9 publications

(11 citation statements)

References 35 publications

(39 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Changing conformation is rather easy for methylviologen, or cyanine dyes: they have a single bond, around which the rigid parts of the molecule may rotate, in order to better fit in the channels. What it is indeed surprising, is that also fully π‐conjugated chromophores such acridine‐,,, xanthene‐, and BODIPY dyes, may exhibit unexpectedly large fluctuations from their gas‐phase planar structure (see Figure ). Also remarkably, such deformations have generally only minor effects on the absorption and emission properties of the dye assembly, and hence on the potential applications of the composites (Figure b) .…”

Section: Organization Of Complex Species In 1dmentioning

confidence: 99%

“…3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 molecule may rotate, in order to better fit in the channels. What it is indeed surprising, is that also fully p-conjugated chromophores such acridine-, [596,694,695] xanthene-, [595] and BODI-PY dyes, [696] may exhibit unexpectedly large fluctuations from their gas-phase planar structure (see Figure 46). Also remarkably, such deformations have generally only minor effects on the absorption and emission properties of the dye assembly, and hence on the potential applications of the composites (Figure 46b).…”

Section: Charged Dyes: Role Of Electrostatics Water and Flexibilitymentioning

confidence: 99%

“…Chromophores bearing a positive charge – from the simplest ones like thionine,,,,, xanthene dyes,,,,,,„ acridine (and derivatives),,,,, to more complex molecules like methylviologen or BODIPY‐dyes,,, – are naturally prone to be incorporated by a zeolite via straightforward ion exchange, a practice which is also used for dye incorporation into anionic MOF nanochannels ,. As a consequence, cationic dyes are very popular as luminescent guests, and their encapsulation has been widely documented by experimental, theoretical, or combined investigations.…”

Section: Organization Of Complex Species In 1dmentioning

confidence: 99%

See 2 more Smart Citations

Supramolecular Organization in Confined Nanospaces

Tabacchi

2018

ChemPhysChem

View full text Add to dashboard Cite

Empty spaces are abhorred by nature, which immediately rushes in to fill the void. Humans have learnt pretty well how to make ordered empty nanocontainers, and to get useful products out of them. When such an order is imparted to molecules, new properties may appear, often yielding advanced applications. This review illustrates how the organized void space inherently present in various materials: zeolites, clathrates, mesoporous silica/organosilica, and metal organic frameworks (MOF), for example, can be exploited to create confined, organized, and self-assembled supramolecular structures of low dimensionality. Features of the confining matrices relevant to organization are presented with special focus on molecular-level aspects. Selected examples of confined supramolecular assemblies - from small molecules to quantum dots or luminescent species - are aimed to show the complexity and potential of this approach. Natural confinement (minerals) and hyperconfinement (high pressure) provide further opportunities to understand and master the atomistic-level interactions governing supramolecular organization under nanospace restrictions.

show abstract

Section: Organization Of Complex Species In 1dmentioning

confidence: 99%

Section: Charged Dyes: Role Of Electrostatics Water and Flexibilitymentioning

confidence: 99%

Section: Organization Of Complex Species In 1dmentioning

confidence: 99%

See 1 more Smart Citation

Supramolecular Organization in Confined Nanospaces

Tabacchi

2018

ChemPhysChem

View full text Add to dashboard Cite

show abstract

“…These host-guest materials are of particular interest as artificial antenna systems for light harvesting, with applications in photochemical and optoelectronic devices. [8][9][10][11][12] The cylindrical shape of the 1D channels not only suppresses the aggregation of adsorbed dye molecules, but can further enhance their photochemical properties. An example can be given for encapsulated proflavine dye molecules which align within the 1D channels and are forced to adopt a bent configuration due to the confinement effects of the framework.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Cation Exchange on the Pore Geometry of Zeolite L

Price,

Jones,

Nearchou

et al. 2022

Preprint

View full text Add to dashboard Cite

Zeolites with the LTL framework topology are attractive materials for use in optoelectronics, gas adsorption and as chemical reactors. This is due to their unique, one-dimensional (1D) channel systems which are large enough to act as hosts for organic dye molecules and other guest materials. Here, we use high-resolution X-ray diffraction to show the effect of cation exchange on the pore geometry of LTL-type zeolites. The nature of the exchanging cation is shown to influence the free access diameter, volume and water content of the 12-ring (12R) channel systems. As such, cation exchange can be used to tune the molecular sieving and adsorption properties of LTL-type zeolites. This offers new possibilities for these materials in technologically relevant applications.

show abstract

“…For example, donor and acceptor chromophores are readily ordered into supramolecular arrays within the 12R channels, allowing efficient resonance energy transfer to occur. These host-guest materials are of particular interest as artificial antenna systems for light harvesting, with applications in photochemical and optoelectronic devices [8][9][10][11][12]. The cylindrical shape of the 1D channels not only suppresses the aggregation of adsorbed dye molecules, but can further enhance their photochemical properties.…”

Section: Introductionmentioning

confidence: 99%