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Publication
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| Title of Article |
Two new oxalato-bridged dinuclear copper(II) complexes with di-2-pyridylamine: crystal structures, spectroscopic and magnetic properties |
| Date of Acceptance |
7 June 2006 |
| Journal |
| Title of Journal |
Inorganic Chemistry Communications |
| Standard |
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| Institute of Journal |
Elsevier |
| ISBN/ISSN |
13877003 |
| Volume |
2006 |
| Issue |
9 |
| Month |
มิถุนายน |
| Year of Publication |
2006 |
| Page |
973-977 |
| Abstract |
Two dinuclear Cu(II) complexes of formula [Cu2(dpyam)2(μ-C2O4) (Cl)2] (1) and [Cu2(dpyam)2(μ-C2O4) (CF3SO3)2]n (2) (dpyam = di-2-pyridylamine) have been synthesized and their spectroscopic and magnetic properties characterized. The structure of 1 is made up of the centrosymmetric dinuclear [{Cu(dpyam)(Cl)}2(μ-C2O4)] units, while 2 contains chains of the dimeric [Cu2(dpyam)2(μ-C2O4) (CF3SO3)2] units linked by the triflate anions. The two copper atoms in both compounds are linked through a bis-didentate oxalato group leading to a metal-metal separation of 5.526(1) and 5.228(3) Å. The stereochemistry of the Cu(II) chromophore in 1 is approximately square pyramidal, while compound 2 displays an elongated octahedral Cu(II) environment. The IR, ligand field and EPR measurements are in agreement with the structures found. The magnetic susceptibility measurements, measured from 5 to 350 K, revealed a very strong antiferromagnetic interaction between the Cu(II) atoms with a singlet-triplet energy gap (J) of -274 and -342 cm-1, for compounds 1 and 2, respectively, in agreement with the coplanarity of the magnetic orbitals.
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| Keyword |
copper complex, oxalate, magnetic properties |
| Author |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
นานาชาติ |
| citation |
true |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Journal Publication
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