THE SYNTHESİS OF SOME BIS-SUBSTITUTED FORMAZANS AND THE INVESTIGATION OF THE EFFECT OF SUBSTITUENT UPON THEIR UV- VIS. ABSORPTION X.lnax VALUES

H. TEZCAN

doi:https://doi.org/10.1501/Commub_0000000351

Makale detayları

THE SYNTHESİS OF SOME BIS-SUBSTITUTED FORMAZANS AND THE INVESTIGATION OF THE EFFECT OF SUBSTITUENT UPON THEIR UV- VIS. ABSORPTION X.lnax VALUES

Yazarlar:

H. TEZCAN

Yayıncı:

Ankara University

Ana Başlıklar:

Kimya mühendisliği

Dergi:

Communications Faculty of Sciences University of Ankara Series B Chemistry and Chemical Engineering 2005 Vol.51 Issue 01, pp.0-0

Belge Tipi:

Makale

Yayın Tarihi:

12/2004

Belge Dili:

İngilizce

Document ID (Org No.):

2000709990

Sıklık:

İki Yıllık

eISSN:

2687-4806

pISSN:

1303-6017

DOI:

https://doi.org/10.1501/Commub_0000000351

Özet:

 

In this study l,4-bis-[3,3’-phenyl-5,5’-(2-carboxyphenyl)-formaz-l-yl]-benzene-2-sulphonic acid (2,CSPF) and its derivatives with OH groups at the o-, m- and p- positions of 3-phenyl ring were synthesized. The structures of the formazans thus obtained were elucidated by elemental analysis, MASS spectroscopy, IR, 'H-NMR and UV-Vis spectra. Also UV-Visible K™* values were investigated according to substituent effect. The Xmax values were observed to shift towards shorter wave lengths by 130 nm in CSPF relation to 1,3,5-triphenylformazan (TPF) due to the fact that the structure of CSPF contained electron withdrawing -COOH and -SO3H groups (hypsochromic effect). The addition of-OH group to 3-phenyl ring of CSPF, was observed a small bathochromic effect in accordance to the electron donating effect of -OH group.

Makale detayları

THE SYNTHESİS OF SOME BIS-SUBSTITUTED FORMAZANS AND THE INVESTIGATION OF THE EFFECT OF SUBSTITUENT UPON THEIR UV- VIS. ABSORPTION X.lnax VALUES

Yazarlar: H. TEZCAN

Yayıncı: Ankara University

Ana Başlıklar: Kimya mühendisliği

Dergi: Communications Faculty of Sciences University of Ankara Series B Chemistry and Chemical Engineering 2005 Vol.51 Issue 01, pp.0-0

Belge Tipi: Makale

Yayın Tarihi: 12/2004

Belge Dili: İngilizce

Document ID (Org No.): 2000709990

Sıklık: İki Yıllık

eISSN: 2687-4806

pISSN: 1303-6017

DOI: https://doi.org/10.1501/Commub_0000000351

Sayı

Yazarlar:

H. TEZCAN

Yayıncı:

Ankara University

Ana Başlıklar:

Kimya mühendisliği

Dergi:

Communications Faculty of Sciences University of Ankara Series B Chemistry and Chemical Engineering 2005 Vol.51 Issue 01, pp.0-0

Belge Tipi:

Makale

Yayın Tarihi:

12/2004

Belge Dili:

İngilizce

Document ID (Org No.):

2000709990

Sıklık:

İki Yıllık

eISSN:

2687-4806

pISSN:

1303-6017

DOI:

https://doi.org/10.1501/Commub_0000000351