Journal of Thermal Analysis and Calorimetry

, Volume 107, Issue 3, pp 869–875 | Cite as

Synthesis, spectroscopic and thermal properties of Pt(II) complexes of some polydentate ligands

  • Yakup Baran
  • Ismet Kaya
  • Murat Turkyılmaz


The new tetradentate symmetrical (2R,2′S)-1,1′-piperazine-1,4-diyldipropane-2-thiol) (L1), (2S)-1-[bis(2-aminoethyl)amino]propan-2-ol) (L2), and 2-{(E)-[((1R,2S)-2-{[(1Z)-(2-hydroxy phenyl)methylene]amino}cyclohexyl)imino]methyl}phenol (L3) ligands were synthesized and characterized on the basis of FT-IR, 1H, 13C NMR, EI mass, and elemental analysis. Three commercially available ligands, (2,2′-[ethane-1,2-diylbis(thio)]diethanol (L4), 2,2′-dithiodiethanenamine (L5), and (2,2′-[ethane-1,2-diyldi(imino)] diethanol (L6), were also studied. Pt(II) complexes were characterized by FTIR, elemental analysis and thermal methods. Thermal behaviors of these complexes were investigated in the range 10–1000 °C. Magnetic properties were also studied, and the all complexes were found to be diamagnetic. The structures consist of the monomeric units in which the Pt(II) atoms exhibit square planar geometry. N,N′-bis(salicylidene)-1,2-cyclohexane has been synthesized and characterized by X-ray single crystal diffraction measurement. The ligand crystallizes in monoclinic crystal system and space group, Cc.


Pt(II) Polydentate FTIR TG NMR Thermal stability X-ray 



The authors wish to thank the Scientific and Technological Research Council of Turkey (TUBITAK) for financial support (project no: 104T389) and BAP. Scientific Research Project of COMU.


  1. 1.
    Chantarasiri N, Tuntulani T, Tongraung R, Seangprasertkit-Magee R, Wannarong W. New metal-containing epoxy polymers from diglycidyl ether of bisphenol A and tetradentate Schiff base metal complexes. Eur Polym J. 2000;36:695–702. doi: 10.16/50014-3057(99)00127-5.CrossRefGoogle Scholar
  2. 2.
    Pignatello R, Panico A, Mazzone P, Pinizzotto MR. Garozzo APM: Fumeri Schiff bases of N-hydroxy-N′-aminoguanidines as antiviral, antibacterial and anticancer agents. Eur J Med Chem. 1994;29:781–5. doi: 10.1016/0223-5434(94)90137-6.CrossRefGoogle Scholar
  3. 3.
    Guofa L, Tongshun S, Yongnian Z. Infrared and Raman spectra of complexes about rare earth nitrate with Schiff base from o-vanillin and 1-naphthylamine. J Mol Struct. 1997;412:75–81. doi: 10.1016/S0022-2860(97)00026-4.CrossRefGoogle Scholar
  4. 4.
    Albertin G, Bordignon E, Orio AA. Five-coordinate copper(II) complexes. Synthesis and properties of [Cu(tren)L]2+ cations. Inorg Chem. 1975;14:1411–3. doi: 10.1021/ic50148a042.CrossRefGoogle Scholar
  5. 5.
    Raman N, Kulondaisamy A, Thangarja C, Jeyasubramanian. Redox and antimicrobial studies of transition metal(II) tetradentate ligands. Trans Met Chem. 2003;28:29–36. doi: 10.1023/A:1022544126607.CrossRefGoogle Scholar
  6. 6.
    Raman N, Kulandaisamy A, Jeyasubramanian K. Synthesis, spectroscopic characterization, redox, and biological screening studies of some Schiff base transition metal(II) complexes derived from salicylidene-4-aminoantipyrine and 2-aminophenol/2-aminothio phenol. Synth React Inorg Met Org Chem. 2001;31:1249–70. doi: 10.1081/SIM-100106862.CrossRefGoogle Scholar
  7. 7.
    Tarafder MTH, Ali MA, Sarvanan N, Weng WY, Umar Tsafe N, Crouse KA. Coordination chemistry and biological activity of two tridentate ONS and NNS Schiff bases derived from S-benzyldithiocarbazate. Trans Met Chem. 2000;25:295–8. doi: 10.1023/A:1007044910814.CrossRefGoogle Scholar
  8. 8.
    Collman J, Hegadus LS. Principals and application of organotransition metal chemistry. Mill Valley: University Science Books; 1980.Google Scholar
  9. 9.
    Zhao J, Zhao B, Liu J, Xu W, Wang Z. Spectroscopy study on the photochromism of Schiff bases N,N-bis(salicylidene)-1,2-diaminoethane and N,N-bis(salicylidene)-1,6-hexanediamine. Spectrochim Acta. 2001;57A:149–54. doi: 10.1016/S1386-1425(00)00353-X.Google Scholar
  10. 10.
    Zgierski MZ, Grabowska A. Theoretical approach to photochromism of aromatic Schiff bases: a minimal chromophore salicylidene methylamine. J Chem Phys. 2000;113:7845–53. doi: 10.1063/1.1316038.CrossRefGoogle Scholar
  11. 11.
    Kaim W, Schwederski B. Bioinorganic chemistry: inorganic elements in the chemistry of life. New York: Wiley; 1996.Google Scholar
  12. 12.
    Szlyk E, Barwiolek M, Kruszynki R, Bartczak T. Synthesis and spectroscopic studies of the optically active copper(II), cobalt(II) and nickel(II) complexes with Schiff bases N,N′-(1R, 2R)(−)-1,2-cyclohexylenebis(3-methoxybenzylideneiminato), N,N′-(1R, 2R)(−)-1,2-cyclohexylenebis(5-methoxybenzylideneiminato) and X-ray diffraction structure of the [Cu(II)(1R, 2R)(−)chxnbis(5-methylbenzylideneiminato)2]. Inorg Chim Acta. 2005;358:3642–52. doi: 10.1016/j.ica2005.06.032.CrossRefGoogle Scholar
  13. 13.
    Altomare A, Cascarano G, Giacovazzo C, Guagliardi A, Burla M, Polidori G, Camalli MA. Program for automatic solution of crystal structures by direct methods. J Appl Cryst. 1994;27:435. doi: 10.1107/S0022188989400021X.Google Scholar
  14. 14.
    Beurskens PT, Admiraal G, Beurskens G, Bosman WP, de Gelder R, Israel R, Smits JMM. The DIRDIF-99 program system, technical report of the crystallography laboratory. The Netherlands: University of Nijmegen; 1999.Google Scholar
  15. 15.
    Crystal Structure 3.6.0: Crystal Structure Analysis Package, Rigaku and Rigaku/MSC (2000-2004). 9009 New Trails Dr. The Woodlands TX 77381 USA.Google Scholar
  16. 16.
    Watkin DJ, Prout CK, Carruthers JR, Betteridge PW. CRYSTALS Issue 10. Chemical crystallography laboratory. Oxford: University of Oxford; 1996.Google Scholar
  17. 17.
    Felicio RC, Cavalherio ET, Dockal ER. Preparation, characterization and thermo gravimetric studies of [N,N-cis-1,2-cyclohexylene bis(salicylideneaminato)] cobalt(II) and [N,N-(9)-trans-1,2-cyclohexylene bis(salicylideneaminato)] cobalt(II). Polyhedron. 2001;20:261–8. doi: 10.1016/S0277-5387(00)00620-3.CrossRefGoogle Scholar

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2011

Authors and Affiliations

  1. 1.Department of Chemistry, Art and Science FacultyOnsekiz Mart UniversityCanakkaleTurkey
  2. 2.Department of Chemistry, Science FacultyTrakya UniversityEdirneTurkey

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