Radhakrishnan, T. P. ; Soos, Z. G. ; Endres, H. ; Azeved, L. J. (1986) Structure and magnetism of NNN'N'-tetramethyl-p- phenylenediamine- pentacyanocyclopentadienide (TMPD-PCCp) The Journal of Chemical Physics, 85 (2). pp. 1126-1130. ISSN 0021-9606
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Official URL: http://jcp.aip.org/resource/1/jcpsa6/v85/i2/p1126_...
Related URL: http://dx.doi.org/10.1063/1.451309
Abstract
TMPD-PCCp crystallizes in the triclinic space group P1 with cell parameters a=6.814(2), b=10.595(3), c=14.540(3) Å , α =74.65(2), β =81.93(2), γ =79.04(2)° , V=989.3 Å 3, Z=2, and wR=0.064. The complex exhibits novel mixed stacking of TMPD+ ion radicals and diamagnetic PCCp- ions and is weakly antiferromagnetic, with a Weiss constant of 2.6 κ . An empirical model for ferromagnetic superexchange is presented for properly oriented ion radicals forming mixed stacks with symmetric diamagnetic spacers.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | Organic Nitrogen Compounds; Antiferromagnetic Materials; Magnetic Properties; Crystal Structure; Radicals |
| ID Code: | 65933 |
| Deposited On: | 19 Oct 2011 14:22 |
| Last Modified: | 19 Oct 2011 14:22 |
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