Aperiodicity, structure, and dynamics in Ni(CN)(2)
Goodwin, A. L., Dove, M. T., Chippindale, A. M., Hibble, S. J., Pohl, A. H. and Hannon, A. C. (2009) Aperiodicity, structure, and dynamics in Ni(CN)(2). Physical Review B, 80 (5). 054101. ISSN 1098-0121
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To link to this article DOI: 10.1103/PhysRevB.80.054101
By combining the results of both x-ray diffraction and neutron total-scattering experiments, we show that Ni(CN)(2) exhibits long-range structural order only in two dimensions, with no true periodicity perpendicular to its gridlike layers. Reverse Monte Carlo analysis gives an experimental distinction between M-C and M-N bond lengths in a homometallic cyanide framework and identifies the vibrational modes responsible for anomalous positive and negative thermal expansion in the title compound.
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