Muthukumaran, Rajendrabose ; Chandramouli, Gadisetti V. R. ; Manoharan, Periakaruppan T. (2005) Intra and intermodular exchange interactions in bis(α-aminoisobutyrato)oxalamidodicopper(Aib-COCO-Aib)Cu2 Chemical Physics Letters, 404 (4-6). pp. 227-231. ISSN 0009-2614
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.cplett.2005.01.065
Abstract
Magnetic susceptibility and electron paramagnetic resonance (EPR) spectra of exquisite two-dimensional supramolecular assembly of [bis(α-aminoisobutyrato)oxalamidodicopper](Aib-COCO-Aib)Cu2 were studied. The temperature dependent magnetic susceptibility studies reveal temperature dependency of the exchange coupling constant. Single crystal EPR studies both at X- and Q-bands show the two-dimensional nature of magnetic lattice and yield the weak intermodular exchange coupling constant in presence of strong intramodular exchange. The intermodular coupling is about five orders of magnitude smaller than the intramodular coupling but it produces a broadening and coalescence of the EPR lines. The temperature dependence of exchange coupling constant reflects dynamical properties of the crystal lattice.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 95766 |
| Deposited On: | 11 Jan 2013 11:34 |
| Last Modified: | 11 Jan 2013 11:34 |
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