Potentiometric and Spectroscopic Studies with Chromium(III) Complexes of Hydroxysalicylic Acid Derivatives in Aqueous Solution

M. Suat AKSOY; Ulviye ÖZER

Makale detayları

Potentiometric and Spectroscopic Studies with Chromium(III) Complexes of Hydroxysalicylic Acid Derivatives in Aqueous Solution

Yazarlar:

M. Suat AKSOY | Ulviye ÖZER

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2003 Vol.27 Issue 6, pp.667-674

Belge Tipi:

Makale

Yayın Tarihi:

5/2003

Belge Dili:

Türkçe

Document ID (Org No.):

2000729439

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

The stoichiometries and stability constants of the  chromium(III) complexes of hydroxysalicylic acid ligands  (2,x-dihydroxy benzoic acids; 2,x-DHBA, x = 4-6)(H3L) were determined  in aqueous solution by potentiometry and spectroscopy at 25 °C and at  an ionic strength of 0.1 mol L- (KNO3).  The existence of Cr(HL)+  type complex was verified.  The stability constants of coordination  species that exist in Cr(III):2,x-DHBA systems were defined.  In the  acidic medium the major coordination species involve salicylate type  coordination.  The formation of monohydroxo complexes was observed at  higher pH values.

 

The stoichiometries and stability constants of the  chromium(III) complexes of hydroxysalicylic acid ligands  (2,x-dihydroxy benzoic acids; 2,x-DHBA, x = 4-6)(H3L) were determined  in aqueous solution by potentiometry and spectroscopy at 25 °C and at  an ionic strength of 0.1 mol L- (KNO3).  The existence of Cr(HL)+  type complex was verified.  The stability constants of coordination  species that exist in Cr(III):2,x-DHBA systems were defined.  In the  acidic medium the major coordination species involve salicylate type  coordination.  The formation of monohydroxo complexes was observed at  higher pH values.

Makale detayları

Potentiometric and Spectroscopic Studies with Chromium(III) Complexes of Hydroxysalicylic Acid Derivatives in Aqueous Solution

Yazarlar: M. Suat AKSOY | Ulviye ÖZER

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 2003 Vol.27 Issue 6, pp.667-674

Belge Tipi: Makale

Yayın Tarihi: 5/2003

Belge Dili: Türkçe

Document ID (Org No.): 2000729439

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

M. Suat AKSOY | Ulviye ÖZER

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2003 Vol.27 Issue 6, pp.667-674

Belge Tipi:

Makale

Yayın Tarihi:

5/2003

Belge Dili:

Türkçe

Document ID (Org No.):

2000729439

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527