Complexing properties of 1,2-dihydroxy-3,4-diketocyclobutene with iron and nickel in ethanol |
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| Authors: | O.St.C. Headley L.A. Hall |
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| Affiliation: | Department of Chemistry, University of the West Indies, St. Augustine, trinidad |
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| Abstract: | ![]()
The divalent chlorides of iron and nickel were reacted with 1,2-dihydroxy-3,4-diketocyclobutene (squaric acid) in ethanolic solution to form complexes of molecular formula [M(HC4O4)(Cl)(C2H5OH)]2·C2H5OH in which the metal ions show penta-coordination. Both complexes are hygroscopic and on exposure to air undergo changes indicating change of coordination number. However, only the iron complex undergoes a change in oxidation state as well. |
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| Keywords: | Author to whom correspondence should be addressed. |
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