High fluorescence emissions of some natural benzofurane derivatives isolated from Styrax officinalis

Sğddğk İÇLİ; Hüseyin ANIL; Bircan DİNDAR

Makale detayları

High fluorescence emissions of some natural benzofurane derivatives isolated from Styrax officinalis

Yazarlar:

Sğddğk İÇLİ | Hüseyin ANIL | Bircan DİNDAR

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2000 Vol.24 Issue 2, pp.199-208

Belge Tipi:

Makale

Yayın Tarihi:

1/2000

Belge Dili:

Türkçe

Document ID (Org No.):

2000730308

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

The fluorescent properties of several natural benzofuran derivatives, egonols, isolated from {\it Styrax officinalis}, were determined. The studied egonol derivatives were found to be effective UV organic luminophores, with quantum yields of near to unity, jfjf jf  = 0.92. The fluorescence quenching experiments with electron donor molecules of aniline, N,N-dimethylaniline and carbazolocarbazole, presented very high efficiency of quenching at above diffusion quenching rates of 4.5\times101010 10 , 2.1\times10×× \times  and 5.6\times101212 12  s−1−1 -1 mol−1−1 -1 , respectively. A strong electron acceptor molecule, tetranitrofluorenone, presented quenching rate of 2.6\times101111 11  s−1−1 -1 mol−1−1 -1 . It is concluded that the first excited singlet state of egonol molecule is a more efficient electron acceptor.

 

The fluorescent properties of several natural benzofuran derivatives, egonols, isolated from {\it Styrax officinalis}, were determined. The studied egonol derivatives were found to be effective UV organic luminophores, with quantum yields of near to unity, jfjf jf  = 0.92. The fluorescence quenching experiments with electron donor molecules of aniline, N,N-dimethylaniline and carbazolocarbazole, presented very high efficiency of quenching at above diffusion quenching rates of 4.5\times101010 10 , 2.1\times10×× \times  and 5.6\times101212 12  s−1−1 -1 mol−1−1 -1 , respectively. A strong electron acceptor molecule, tetranitrofluorenone, presented quenching rate of 2.6\times101111 11  s−1−1 -1 mol−1−1 -1 . It is concluded that the first excited singlet state of egonol molecule is a more efficient electron acceptor.

Makale detayları

High fluorescence emissions of some natural benzofurane derivatives isolated from Styrax officinalis

Yazarlar: Sğddğk İÇLİ | Hüseyin ANIL | Bircan DİNDAR

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 2000 Vol.24 Issue 2, pp.199-208

Belge Tipi: Makale

Yayın Tarihi: 1/2000

Belge Dili: Türkçe

Document ID (Org No.): 2000730308

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Sğddğk İÇLİ | Hüseyin ANIL | Bircan DİNDAR

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2000 Vol.24 Issue 2, pp.199-208

Belge Tipi:

Makale

Yayın Tarihi:

1/2000

Belge Dili:

Türkçe

Document ID (Org No.):

2000730308

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527