Publikation: (PbS)32 : A baby crystal
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Theoretical calculations based on density functional theory have found (PbS)32 to be the smallest cubic cluster for which its inner (PbS)4 core enjoys bulk-like coordination. Cubic (PbS)32 is thus a “baby crystal,” i.e., the smallest cluster, exhibiting sixfold coordination, that can be replicated to obtain the bulk crystal. The calculated dimensions of the (PbS)32 cluster further provide a rubric for understanding the pattern of aggregation when (PbS)32 clusters are deposited on a suitable surface, i.e., the formation of square and rectangular, crystalline nano-blocks with predictable dimensions. Experiments in which mass-selected (PbS)32 clusters were soft-landed onto a highly ordered pyrolytic graphite surface and the resulting aggregates imaged by scanning tunneling microscopy provide evidence in direct support of the computational results.
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KIRAN, Boggavarapu, Anil K. KANDALAM, Rameshu RALLABANDI, Pratik KOIRALA, Xiang LI, Xin TANG, Yi WANG, Howard FAIRBROTHER, Gerd GANTEFÖR, Kit BOWEN, 2012. (PbS)32 : A baby crystal. In: The Journal of Chemical Physics. American Institute of Physics (AIP). 2012, 136(2), 024317. ISSN 0021-9606. eISSN 1089-7690. Available under: doi: 10.1063/1.3672166BibTex
@article{Kiran2012-01-14cryst-49271, year={2012}, doi={10.1063/1.3672166}, title={(PbS)<sub>32</sub> : A baby crystal}, number={2}, volume={136}, issn={0021-9606}, journal={The Journal of Chemical Physics}, author={Kiran, Boggavarapu and Kandalam, Anil K. and Rallabandi, Rameshu and Koirala, Pratik and Li, Xiang and Tang, Xin and Wang, Yi and Fairbrother, Howard and Ganteför, Gerd and Bowen, Kit}, note={Article Number: 024317} }
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