You are here

Home » Content

Halkalı Alkil Tiyofen-Schiff Bazlarının Protonlanma ve Bunların Ni(II) İyonu ile Kompleks Oluşum Sabitlerinin Belirlenmesi

Determination of the Protonation Constants of Cycloalkyl Thiophen-Schif f Bases and their Complex Stability Constant with Ni{II) Ion

Journal Name:

  • Süleyman Demirel Üniversitesi Fen Dergisi

Publication Year:

  • 2011

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
The protonation constants of the cycloalkyl thiophen-Schiff bases and their stability constants of the Ni(II) complexes were potentiometrically determined in a ethanol-water 50% (w/w) solution at 25°C, under N2 atmosphere and 0.15 M KCl ionic strength. The stoichiometric protonation constants have been measured by the potentiometric titration and calculations were performed by the PKAS computer software recently developed. Variations of the protonation constant of Schiff bases have been discussed in view of structural effects exerted on Ni(II)-complex and antimicrobiyal.
Bookmark/Search this post with
Abstract (Original Language): 
Halkalı alkil tiyofen-Schiff bazların protonlanma ve bunların Ni(II) iyonu ile olan komplekslerinin kararlılık sabitleri %50 etil alkol-su (v/v) ortamında, potansiyometrik titrasyon yöntemi ile tayin edildi. Titrasyonlar 25°C'de, azot atmosferinde ve 0,15 M KCl'lü ortamda yapıldı. Potansiyometrik titrasyon verilerinden yararlanarak PKAS programı ile Schiff bazlarının stokiyometrik protonlanma sabitleri hesaplandı. Schiff bazlarına ait protonlanma sabitlerinin, kompleksleşme ve antimikrobiyel etkilerine bağlı olup olmadığı araştırıldı.
FULL TEXT (PDF): 
PDF icon arastirmax-halkali-alkil-tiyofen-schiff-bazlarinin-protonlanma-bunlarin-niii-iyonu-ile-kompleks-olusum-sabitlerinin-belirlenmesi.pdf
  • 1
55-61
  • Turkish

REFERENCES

References: 

[I] Altundaş A., Sarı N., Çolak N., Öğütcü H., 2010. Synthesis and biological activity of new
cycloalkylthiophene-Schiff bases and their Cr(III) and Zn(II) complexes, Medicinal Chemistry
Research, 19 (6): 576-588. [2] Temple D.L., Yevich, J.P., Covington R.R., Hanning C.A., Seidehamel R.J., Mackey H.K., Bartek
M.J., 1979. Synthesis of 3,4-dihydro-4-oxothieno[2,3-d]pyrimidine-2-carboxylates, a new series
of orally active antiallergy agents, Journal of Medicinal Chemistry, 22 (5): 505-510. [3] Eger K., Grieb G., Spâtling S., 1990. Synthesis of pyrrolo[2,3-djpyrimidme ribosides and their
potential in chemotherapeutics, Journal of Heterocyclic Chemistry, 27: 2069-2075. [4] Li J.J., 2009. Name Reactions. A Collection of Detailed Mechanisms and Synthetic Applications.
Wallingford, CT 06492, United States of America, pp 254. [5] Puterovâ Z., Krutosikovâ A., Veghc D., 2010. Gewald reaction: synthesis, properties and applications
of substituted 2-aminothiophenes, Arkivoc, (i): 209-246. [6] Sarı N., Arslan S., Loğoğlu E., Sakıyan I., 2003. Antibacterial Activities of Some New Aminoacid-
Schiff Bases, GaziUniversitesi, Fen Bilimleri Dergisi, 16 (2): 283-288.
[7] Siddiqi K.S, Kureshy R.I, Khan N.H, Tabassum S., Zaidi S., 1988. Characterization and toxicity of lanthanide complexes with nitrogen- and sulphur-containing Schiff bases, Inorganic Chemica Acta, 151 (2): 95-100.
[8] Vyas K.M., Jadeja R.N., Gupta V. K., Surati K.R., 2011. Synthesis, characterization and crystal structure of some bidentate heterocyclic Schiff base ligands of 4-toluoyl pyrazolones and its mononuclear Cu(II) complexes, Journal of Molecular Structure, 990 (1-3): 110-120.
[9] Ocak M., Gümrükçüoğlu N., Ocak Ü., Buschmann H.-J. Schollmeyer E., 2008. The Synthesis of New Triazole Ligands and Determination of Complex Stability Constant with Transition Metal Cations in Aqueous Media, Journal of Solution Chemical, 37 (11): 1489-1497.
[10] Jiang J.J., Chang T.C., Hsu W.L., Hwang J.M., Hsu L.Y., 2003. Synthesis and biological activity of sulfur-containing aryl-aldehyde Schiff bases, Chemical Pharmaceutical Bulletin, 51 (11): 1307¬1310.
[II] Sarı N., Gurkan P., Arslan S., 2003. Synthesis, potentiometric and antimicrobial activity studies on
2-pyridinilidene-DL-amino acids and their complexes, Transition Metal Chemistry 28 (4): 468¬474.
60
FENCİ
DERGİSİ H)
SDU Journal of Science {E-Journal), 2011, 6 {1): 55-61
[12] Brahimi-Horn M.C., Pouyssegur J., 2007. Hypoxia in cancer cell metabolism and pH regulation,
Essays in Biochemistry, 43 (2): 165-78. [13] Martell A.E., Motekaitis R.J., 1988.The Determination and Use of Stability Constants, VCH,
Publishers Inc., New York. 46 pp. [14] Sarı N., Gurkan P., 2004. Some Novel Amino Acid-Schiff Bases and their Complexes Synthesis,
Characterization, Solid State Conductivity Behaviors and Potentiometric, Zeitschrift für
Naturforschung B-A Journal of Chemical Sciences, 59b: 692-698.
[15] Gran G., 1952. Determination of the equivalence point in potentiometric titrations Part II, Analyst,
77: 661-671.
[16] Akay M.A., Dürüst N., Dürüst Y., Kilic E., 1999. Protonation constants of some N-substituted thiophene-2-carboxamidoximes, Analytica Chimica Acta, 392 (2-3): 343-346.
[17]
Özka
r S., Çetinkaya B., Gül A., Gök Y. 1999. Anorganik Kimya, 3. Baskıdan Çeviri, Bilim yayıncılık , sayfa: 139-140.
Aliye Altundaş e posta: altundas@gazi.edu.tr Hatice Öğütcü e posta: hogutcu@ahievran.edu.tr

Thank you for copying data from http://www.arastirmax.com