Magnetic, thermal and spectral characterization of 2,6-dimethoxybenzoates of Co(II), Ni(II) and Cu(II)
Article Sidebar
Main Article Content
Abstract
have been synthesized as polycrystalline solids, and characterized by elemental analysis, spectroscopy,
magnetic studies, and also by X-ray diffraction and thermogravimetric measurements. The analysed
complexes have following colours: pink for Co(II), green for Ni(II), and blue for Cu(II) compounds.
The carboxylate group binds as monodentate, and bidentate bridging and chelating ligands. On heat-
ing in air to 1173 K the complexes decompose in four, three or two steps. At first, they dehydrate in
one or two steps to anhydrous salts, that next decompose to oxides of the respective metals. The solu-
bility of the investigated dimethoxybenzoates in water at 293 K is of the order of 10 -2 mol/dm 3 . Their
magnetic moments were determined in the temperature range of 76-303 K. The results reveal the com-
pounds of Co(II) and Ni(II) to be high-spin complexes and that of Cu(II) to form dimer.
Metrics
Article Details
This work is licensed under a Creative Commons Attribution 4.0 International License.
The corresponding author transfers the copyright of the submitted manuscript and all its versions to Eclet. Quim., after having the consent of all authors, which ceases if the manuscript is rejected or withdrawn during the review process.
When a published manuscript in EQJ is also published in other journal, it will be immediately withdrawn from EQ and the authors informed of the Editor decision.
Self-archive to institutional, thematic repositories or personal webpage is permitted just after publication. The articles published by Eclet. Quim. are licensed under the Creative Commons Attribution 4.0 International License.
References
S. C. Mojumdar, D. Hudecova, and M. Malnik, Pol. J.
Chem. 73 (1999) 759
M. McCann, J. F. Cronin, and M. Devereux, Polyhedron
(1995) 2379
D. Czakis-Sulikowska, and A. Czylkowska, J. Therm.
Anal. Cal. 76 (2004) 543
M. G. Abd El Wahed, E. M. Nour, S. Teleb, and S. Fahim,
J. Therm. Anal. Cal. 76 (2004) 343
H. Icbudak, Z. Heren, D. Ali Kase, and H. Necefoglu, J.
Therm. Anal. Cal. 76 (2004) 837
H. Olmez, F. Arslan, and H. Icbudak, J. Therm. Anal. Cal.
(2004) 793
M. Sekerci, and Y. Yakuphanoglu, J. Therm. Anal. Cal. 75
(2004) 189
W. Ferenc, and B. Bocian, J. Therm. Anal. Cal. 60 (2000)
W. Ferenc, and A. Walków-Dziewulska, J. Them. Anal.
Cal. 61 (2000) 923
B. Bocian, B. Czajka, and W. Ferenc, J. Them. Anal. Cal.
(2001) 729
W. Ferenc, A. Walków-Dziewulska, J. Them. Anal. Cal.
(2002) 949
W. Ferenc, A. Walków-Dziewulska, J. Them. Anal. Cal.
(2003) 375
W. Ferenc, A. Walków-Dziewulska, J. Them. Anal. Cal.
(2003) 511
W. Ferenc, A. Walków-Dziewulska, and B. Bocian, J.
Them. Anal. Cal. 79 (2005) 149
W. Ferenc, A. Walków-Dziewulska, and P. Sadowski, J.
Them. Anal. Cal. 82 (2005) 365
Gmelin Handbook of Inorganic Chemistry, Springer
Verlag, Berlin, 1984 p.105
S. L. Erre, G. Micera, F. Cariati, G. Ciani, A Sironi, H.
Koz?owski, and J. Baranowski, J. Chem. Soc., Dalton Trans.
(1988) 363
S. L. Erre, G. Micera, and F. Cariati, Polyhedron 6
(1987) 1869
Beilsteins Handbuch der organischen Chemie, Bd. X.,
Verlag von Julius Springer, Berlin, 1927
L. D. Pethe, and B. D. Mali, Indian J. Chem. Vol. 16A
(1978) 364
B. N. Figgs, and R. S. Nyholm, J. Chem. Soc. (1958)
E. König, Magnetic Properties of Coordination and
Organometallic Transition Metal Compounds, Springer
Verlag, Berlin, 1966
A. Bartecki, Electronic spectra of complex compounds,
Scientific and Technical Publishers, Warsaw, 1 st edn., 1987
L. E. Orgel, An Introduction to Transition-Metal
Chemistry. Ligand-Field Theory, John Wiley and Sons, New
York, 1 st edn., 1960
L. J. Bellamy, The Infrared Spectra of Complex
Molecules, Chapman & Hall Ltd., London, 1975
K. Nakamoto, Infrared and Raman Spectra of Inorganic
and Coordination Compounds, John Wiley and Sons, Toronto,
th edn., 1997, part B, chap. 3
A. Cross, and A. R. Jones, An Introduction to Practical
Infrared Spectroscopy, Butterworths, London, 3 rd edn., 1969
R. C. Mehrotra, and R. Bohra, Metal Carboxylates,
Academic Press, London, 1983
B. S. Manhas, and A. K. Trikha, J. Indian. Chem. Soc.
(1982) 315
E. ??giewka, and Z. Bojarski, X-ray Structural Analysis,
Polish Scientific Publisher, Warsaw,1 st edn., 1988
A. V. Nikolaev, V. A. Logvinienko, and L. J. Myachina,
Thermal Analysis, Vol. 2, Academic Press, New York, 1989
B. Singh, B. V. Agarwala, P. L. Mourya, and A. K. Dey,
J. Indian Chem. Soc. 59 (1992) 1130
F. Paulik, Special Trends in Thermal Analysis, Wiley,
Chichester 1995
K. Burger, Coordination Chemistry: Experimental
Methods, Akadèmiai Kiadó, Budapest, 1973.
J. Mrozi ski, M. Janik, and T. Nowakowski, Scientific
Numbers of Silesian Technical University, 119 (1988), 125
A. Earnshaw, Introduction to Magnetochemistry,
Academic Press, London, 1956
C. O’Connor, Progress in Inorganic Chemistry, Wiley,
New York, 1982
F. A. Kettle, Inorganic Physical Chemistry, Polish
Scientific Publisher, Warsaw, 1999
J. Mrozi ski, Materials Science, Vol. XIV (1988) 3.