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Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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id, anchor, stato, doi, url, anno, rivista, volume, pagine, editore, tipo, autori, accesso, licenza, pmcid, citata_da, argomenti, parole_chiave, contenuto_letto, tags, cited_in_sections
id anchor stato doi url anno rivista volume pagine editore tipo autori accesso licenza pmcid citata_da argomenti parole_chiave contenuto_letto tags cited_in_sections
62 ref-62 verificata 10.1351/pac196511030371 https://doi.org/10.1351/pac196511030371 1965 Pure and Applied Chemistry 11 371-392 Walter de Gruyter GmbH journal-article
Michael Kasha
Henry Ralph Rawls
M. Ashraf El‐Bayoumi
bronze null null 4255
Spectroscopy and Quantum Chemical Studies
Photochemistry and Electron Transfer Studies
Molecular Spectroscopy and Structure
exciton model
molecular crystals
van der Waals dimers
hydrogen-bonded dimers
molecular trimers
molecular composites
electronic excitation
molecular spectroscopy
abstract_only
fonte
bibliografia
4.5

[62] Kasha (1965) - The exciton model in molecular spectroscopy

Come è scritta nella tesi

Kasha, M., Rawls, H. R. & Ashraf El-Bayoumi, M. The exciton model in molecular spectroscopy. Pure Appl. Chem. 11, 371–392 (1965).

Scheda bibliografica

Citazione completa: Kasha, M.; Rawls, H. R.; Ashraf El-Bayoumi, M. The exciton model in molecular spectroscopy. Pure and Applied Chemistry 1965, 11 (3-4), 371-392. https://doi.org/10.1351/pac196511030371

  • Pubblicato in: Pure and Applied Chemistry, vol. 11, n. 3-4, pp. 371-392 (1965)
  • Editore: Walter de Gruyter GmbH · tipo: journal-article
  • ISSN: 1365-3075, 0033-4545
  • Data di pubblicazione: 1965-01-01
  • Lingua: en

Autori e affiliazioni

  • Michael Kasha - Florida State University
  • Henry Ralph Rawls - Florida State University
  • M. Ashraf El‐Bayoumi - Florida State University

Stato della verifica

Verificata (Crossref/OpenAlex) - fonte dati: Crossref + OpenAlex

Dove trovarla

Copie ad accesso aperto

Abstract

The molecular exciton model has received its most extensive development and application in the field of molecular crystals1'2. More recently, numerous applications to non-crystalline molecular composite systems have been made, including van der Waals and hydrogen-bonded dimers, trimers, and

(Fonte: OpenAlex. Non è il testo integrale dell'articolo.)

Argomenti e parole chiave

  • Argomenti (OpenAlex): Spectroscopy and Quantum Chemical Studies (Atomic and Molecular Physics, and Optics); Photochemistry and Electron Transfer Studies (Physical and Theoretical Chemistry); Molecular Spectroscopy and Structure (Spectroscopy)
  • Parole chiave: exciton model, molecular crystals, van der Waals dimers, hydrogen-bonded dimers, molecular trimers, molecular composites, electronic excitation, molecular spectroscopy
  • Concetti: Chemistry, Exciton, Spectroscopy, Chemical physics, Molecular spectroscopy

Contenuto in sintesi

Riassunto in italiano preparato leggendo l'abstract (https://www.degruyterbrill.com/document/doi/10.1351/pac196511030371/pdf (non accessibile: 405/403/Cloudflare)); non è un testo dell'autore originale.

Obiettivo e tipo di lavoro

Contributo teorico-spettroscopico (Pure Appl. Chem. 1965, 11, 371-392; atti dell'VIII Congresso Europeo di Spettroscopia Molecolare, Copenaghen) sul modello eccitonico molecolare. Il testo completo non è stato letto: il PDF non era accessibile.

Contenuto in sintesi

Poiché il testo non è stato letto, si riporta solo quanto emerge da descrizioni secondarie: il lavoro è considerato un classico del modello eccitonico per un dimero (van der Waals) di molecole identiche, che spiega come le interazioni deboli tra molecole generino nuove caratteristiche negli spettri degli aggregati. Per il contenuto dettagliato (geometrie, splitting, regole di selezione) consultare direttamente l'articolo.

Risultati e conclusioni principali

Non verificabili senza il testo. È il riferimento storico da cui nascono i concetti di aggregato H e J.

Figure, schemi e tabelle notevoli

Non disponibili (testo non letto).

Collegamento con la tesi

Citata (rif. 62) alla sez. 4.5 (riga 1277): la tesi usa la teoria dell'accoppiamento eccitonico di Kasha per distinguere aggregati H (face-to-face) e J (head-to-tail) e afferma che gli aggregati H presentano una transizione permessa verso lo stato eccitonico a più alta energia, quindi uno spostamento ipsocromico e una emissione ridotta. Per approfondire occorre la parte sul dimero eccitonico (splitting degli stati, regole di selezione in funzione della geometria).

Note del revisore: Testo completo non ottenuto: de Gruyter 405/403 da WebFetch, IUPAC dietro Cloudflare. Il riassunto non va considerato una lettura dell'articolo.

Come è citata nella tesi

  • Sez. 4.5 Caratterizzazione spettroscopica allo stato solido (tesi.md r. 1277): La tipologia di aggregazione supramolecolare detta le regole di transizione elettronica. Secondo la teoria dell'accoppiamento eccitonico di Kasha, l'impaccamento delle catene coniugate può avvenire prevalentemente secondo due geometrie: gli aggregati di tipo H (impaccamento face-to-face, in cui prevalgono le interazioni π-π laterali) e gli aggregati di tipo J (impaccamento head-to-tail). Nei polimeri coniugati, le forti interazioni π-π favoriscono frequentemente la formazione di aggregati H, i quali presentano una transizione otticamente permessa verso lo stato eccitonico a maggiore energia.[62]

Bibliografia della fonte

La fonte cita 1098 riferimenti (mostrati i primi 40; elenco completo: https://api.crossref.org/works/10.1351/pac196511030371):

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  • Role of Formation of Statistical Aggregates in Chlorophyll Fluorescence Concentration Quenching The Journal of Physical Chemistry B 2013 117 3976 https://doi.org/10.1021/jp311821t
  • Spontaneous self-assembly of water-soluble porphyrins having poly(ethylene glycol) as branches: Dependence of aggregate properties from the building block architecture Chemical Physics 2012 409 23 https://doi.org/10.1016/j.chemphys.2012.09.022
  • Artificial photosynthetic systems: assemblies of slipped cofacial porphyrins and phthalocyanines showing strong electronic coupling Organic & Biomolecular Chemistry 2007 5 1679 https://doi.org/10.1039/b703405a
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  • Coherent Electronic Coupling versus Localization in Individual Molecular Dimers Physical Review Letters 2004 92 103001 https://doi.org/10.1103/PhysRevLett.92.103001
  • 1,4-Bis(diarylamino)-2,5-bis(4-cyanophenylethenyl)benzenes: Fluorophores Exhibiting Efficient Red and Near-Infrared Emissions in Solid State Angewandte Chemie 2012 124 4171 https://doi.org/10.1002/ange.201108943
  • Evidence for Dual Pathway in Through-Space Singlet Energy Transfers in Flexible Cofacial Bisporphyrin Dyads Chemistry - A European Journal 2009 15 524 https://doi.org/10.1002/chem.200800299
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  • Measuring the Range of Plasmonic Interaction Langmuir 2012 28 4800 https://doi.org/10.1021/la204577m
  • Electron-vibrational relaxation of photoexcited polyfluorenes in the presence of chemical defects: A theoretical study Chemical Physics Letters 2003 372 403 https://doi.org/10.1016/S0009-2614(03)00419-6
  • Clay-catalyzed phenomena of cationic-dye aggregation and hydroxo-chromium oligomerization Microporous and Mesoporous Materials 2009 122 13 https://doi.org/10.1016/j.micromeso.2009.01.004
  • Measurement of exciton diffusion lengths of phthalocyanine derivatives based on interlayer excitation transfer Thin Solid Films 2013 527 239 https://doi.org/10.1016/j.tsf.2012.12.036
  • Interconvertible Oligothiophene Nanorods and Nanotapes with High Charge-Carrier Mobilities Chemistry - A European Journal 2009 15 9320 https://doi.org/10.1002/chem.200901336
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Lavori correlati (OpenAlex)

Metriche

  • Citata 4255 volte (OpenAlex); riferimenti nella fonte: 1079
  • Citazioni per anno: 2026: 124, 2025: 169, 2024: 166, 2023: 161, 2022: 193, 2021: 180

Torna alla bibliografia della tesi · Generata dal catalogo bibliografia.json e da Crossref, OpenAlex, Europe PMC.

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