Comparison of 1 4 distyrylfluorene and 1 4 distyrylbenzene analogues synthesis structure electrochemistry and photophysics
Yazarlar (9)
Clemson University, Amerika Birleşik Devletleri
Clemson University, Amerika Birleşik Devletleri
Clemson University, Amerika Birleşik Devletleri
Clemson University, Amerika Birleşik Devletleri
Prof. Dr. Nihal DELİGÖNÜL
Case Western Reserve University, Amerika Birleşik Devletleri
Case Western Reserve University, Amerika Birleşik Devletleri
Case Western Reserve University, Amerika Birleşik Devletleri
Clemson University, Amerika Birleşik Devletleri
Clemson University, Amerika Birleşik Devletleri
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale |
| Dergi Adı | Organic and Biomolecular Chemistry |
| Dergi ISSN | 1477-0520 Wos Dergi Scopus Dergi |
| Dergi Tarandığı Indeksler | SCI |
| Dergi Grubu | Q4 |
| Makale Dili | İngilizce |
| Basım Tarihi | 01-2013 |
| Cilt No | 11 |
| Sayı | 33 |
| Sayfalar | 5425 / 5434 |
| DOI Numarası | 10.1039/c3ob40580j |
| Makale Linki | http://xlink.rsc.org/?DOI=c3ob40580j |
| Özet |
| A series of nine 1,4-distyrylfluorene derivatives (2) functionalized with substituents of variable electrondonating or -accepting capabilities was synthesised. The photophysical properties of the molecules were investigated, including UV/vis absorption, photoluminescence emission, and fluorescence quantum yields. Photophysical properties of chromophores 2 were found to exhibit significant solvatochromic effects, especially in the Stokes shift and photoluminescence maxima. The electrochemical properties of series 2 were also assessed by cyclic voltammetry and differential pulse voltammetry. Results of photophysical and electrochemical analyses were further supported by DFT calculations (B3LYP/6-31G*) and single crystal X-ray diffraction on select molecules. The contributions of intermolecular π-stacking and hydrogen bonding to crystal packing are discussed. A series of nine 1,4-distyrylphenylene derivatives (3) were also synthesised and similarly characterized for comparison to photophysical and solvatochromic effects observed in series 2. Properties of similarly-substituted molecules in series 2 and 3 were compared to one another in order to assess the influence of the 1,4-fluorenylene unit. |
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