Ground and Excited State Aromatic−Aromatic Interactions with Distance Control by Hydrogen Bonding

Lewis, Frederick D.; Yang, Jye‐Shane; Stern, Charlotte L.

doi:10.1021/ja9537437

Cited by 48 publications

(38 citation statements)

References 32 publications

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“…Subtle differences of peak position and resolution may be related to spacing and orientation of adjacent rings, analogous to reported hydrogen-bonded pairs of stilbene and biphenyl dicarboxamides with face-to-face and edge-to-face orientations giving strongly and weakly perturbed excimer-like fluorescence, respectively. [42] The results described above demonstrate that control over both the electronic structure and local environment of a chromophore are possible in MOFs. This effectively creates a nanolaboratory for the systematic study of a broad range of photophysical phenomena, including scintillation, fluorescence, and energy transfer.…”

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confidence: 79%

Scintillating Metal‐Organic Frameworks: A New Class of Radiation Detection Materials

et al. 2009

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The detection and identification of subatomic particles is an important scientific problem with implications for medical devices, radiography, biochemical analysis, particle physics, and astrophysics. In addition, the development of efficient detectors of neutrons generated by fissile material is a pressing need for nuclear nonproliferation efforts. A critical objective in the field of radiation detection is to obtain the physical insight necessary for rational design of scintillation materials. Many factors affect the quantum efficiency and timing of scintillator light output, including chemical composition, electronic structure, interchromophore interactions, crystal symmetry, and atomic density. None of the material types currently used in radiation detection, which include crystalline inorganic compounds such as LaBr 3 :Ce, organic compounds, and plastics, have the inherent synthetic versatility to exert systematic control over these factors. Therefore, it is likely that major advances in radiation detection will require the development of new materials outside the scope of traditional scintillators. Here, we propose that metal-organic frameworks (MOFs) could potentially offer the desired level of structural control, leading to an entirely new class of radiation detection materials.MOFs are crystalline materials consisting of metal clusters linked by coordinating organic groups. Yaghi, O'Keefe, and coworkers have shown that structures resulting from the selfassembly of specific metal ions and linkers can be predicted through an understanding of the geometric nets accessible to particular metal-linker combinations (''reticular chemistry''), [1][2][3]

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confidence: 79%

Scintillating Metal‐Organic Frameworks: A New Class of Radiation Detection Materials

et al. 2009

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“…In these devices, the molecular packing and the morphological properties in thin films influence the optical/electronic properties in the conjugated molecular materials [5]. In particular, changes in the molecular packing influences the characteristics of the excited electronic states, as evidenced in the case of aromatic hydrocarbons, because various molecule-molecule geometries may lead to a large variety of fluorescence behaviors [6,7]. Face-to-face packing typically displays strongly disturbed excimer-like fluorescence, while edgeto-face packing displays weakly perturbed exciton-like fluorescence [7].…”

Section: Introductionmentioning

confidence: 99%

“…In particular, changes in the molecular packing influences the characteristics of the excited electronic states, as evidenced in the case of aromatic hydrocarbons, because various molecule-molecule geometries may lead to a large variety of fluorescence behaviors [6,7]. Face-to-face packing typically displays strongly disturbed excimer-like fluorescence, while edgeto-face packing displays weakly perturbed exciton-like fluorescence [7]. Motivated by this, several studies have investigated the structures of adsorbed benzene [8][9][10], naphthalene [11,12] and pyridine [3].…”

Section: Introductionmentioning

confidence: 99%

Adsorption of styrene on Ag(111)

2004

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“…The nature, orientation and the number of the interacting subunits present is essential for the size and shape that is found. Particular successful was the use of multiple hydrogen bonding in the self-assembly of macromolecule-like fibers [41,42], sheets [43,44], ribbons and rozettes [45,46,47], cages [48,49], and nanotubes [50]. Arrays of multiple hydrogen bonds where obtained by employing e.g.…”

Section: Figurementioning

confidence: 99%