Structural studies on 3-acetyl-1,5-diaryl and 3-cyano-1,5-diaryl formazan chelates with cerium(III), thorium(IV) and uranium(VI) |
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| Authors: | O E Sherif Y M Issa M E M Hassouna S M Abass |
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| Institution: | (1) Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt;(2) Chemistry Department, Faculty of Science, Cairo University, Beni Suef, Egypt |
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| Abstract: | Summary Solid complexes of 3-acetyl-1,5-diaryl and 3-cyano-1,5-diaryl formazans were prepared and characterized by elemental analysis, IR, NMR, TGA and DTA analyses. Based on these studies, the suggested general formula for the complexes is M(HL)
m
(OH–)
n
or (NO
3
–
or Cl–)
x
·(H2O)
y
or (C2H5OH orDMSO)
z
, where HL=formazanM=Ce3+, Th4+, and UO
2
2+
,m=1–2,n=0–3,x=0–3,y=0–4 andz=0–3. The metal ions are expected to have coordination numbers 6–8.
Strukturuntersuchungen an 3-Acetyl-1,5-diaryl- und 3-Cyan-1,5-diaryl-formazan-Chelaten mit Cer(III), Thorium(IV) und Uran(VI) Zusammenfassung Die hergestellten Chelate wurden mittels Elementaranalyse, IR, NMR, TGA und DTA charakterisiert. Darauf basierend wird die generelle Formel M(HL)
m
(OH–)
n
bzw. (NO
3
–
oder Cl–)
x
·(H2O)
y
oder (C2H5OH bzw.DMSO)
z
] vorgeschlagen, wobei HL=Formazan,M=Ce3+, Th4+ oder UO
2
2+
,m=1–2,n=0–3,x=0–3,y=0–4 undz=0–3. Die Metallionen haben Koordinationszahlen von 6–8. |
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| Keywords: | Complexes of 3-acetyl and 3-cyano formazans Ce(III) Th(IV) U(VI) |
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