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Issue 4, 2001
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Structural and magnetic properties of Co3(dpa)4Br2

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Abstract

Eleven crystal structures have been determined for the trinuclear Co3(dpa)4Br2 (1) (dpa = di(2-pyridyl)amide anion) molecule in the following solvates: 1·CH2Cl2 (at 111, 147 and 240 K), 1·C6H12 (at 110, 150, 213 and 298 K) and 1·1.75C7H8·0.5C6H14 (at 110, 170, 213 and 295 K). Their magnetic behavior has been measured over the temperature range 5–350 K. In nearly every respect their behavior closely parallels that of their chloro analogs, although certain crystallographic and magnetic details differ. Of particular importance is that both symmetrical and unsymmetrical structures are observed in different crystalline forms and that the unsymmetrical forms display marked temperature dependence. It is, therefore, clear that the highly unconventional behavior of the chloro analog is not restricted to that one compound.

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Graphical abstract: Structural and magnetic properties of Co3(dpa)4Br2 [ ]

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Article information


Submitted
28 Sep 2000
Accepted
30 Nov 2000
First published
29 Jan 2001

J. Chem. Soc., Dalton Trans., 2001, 386-391
Article type
Paper

Structural and magnetic properties of Co3(dpa)4Br2

R. Clérac, F. A. Cotton, L. M. Daniels, K. R. Dunbar, C. A. Murillo and X. Wang, J. Chem. Soc., Dalton Trans., 2001, 386
DOI: 10.1039/B007876J

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