Abstract
The thermal analysis (DTA and TG) of a novel series of Cu(II) and Ni(II) complexes of tetramic acid derivatives reveal a very different thermal behavior despite their evident structural similarities. The number of water molecules per formula unit varies from 0 to 4 and is rather influenced by slight differences in the periphery of the complexes than by crystallization conditions. Thus the bond strength of water in the crystal hydrates plays a decisive role for the evaluation of the Cu(II) complexes as contrast agents for in vitro NMR-microscopy.
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Zschunke A, Böttger U, Donau R, Bögge H, Müller A, Hauser A, Lück R (1992) Z Anorg Allg Chem 614:87–94.
Päuser S, Keller K, Zschunke A, Mügge C (1993) Magn Reson Imaging 11:419–424
Reck G, Schulz B, Zschunke A, Tietze O, Haferkorn J (1994) Z Krist 209:969–974
Tietze O, Reck G, Schulz B, Zschunke A (1995) Z Krist 210:137–141
Heide K (1982) Dynamische thermische Analysenmethoden. VEB Dt. Verlag für Grundstoffindustne, Leipzig
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Dedicated to Professor Dr. H. Kriegsmann on the occasion of his 70th birthday
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Tietze, O., Feist, M. & Zschunke, A. Estimation of crystal water contents and dehydration enthalpies in a novel series of Cu(II) and Ni(II) chelates based on tetramic acids. Fresenius J Anal Chem 352, 532–534 (1995). https://doi.org/10.1007/BF00323380
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DOI: https://doi.org/10.1007/BF00323380