@article{7565,
  author = {M. Haertelt and A. Fielicke and G. Meijer and K. Kwapien and M. Sierka and J. Sauer},
  title = {Structure determination of neutral MgO clusters-hexagonal nanotubes and cages},
  abstract = {Structural information for neutral magnesium oxide clusters has been obtained by a comparison of their experimental vibrational spectra with predictions from theory. (MgO)n clusters with n = 3-16 have been studied in the gas phase with a tunable IR-UV two-color ionization scheme and size-selective infrared spectra have been measured. These IR spectra are compared to the calculated spectra of the global minimum structures predicted by a hybrid ab initio genetic algorithm. The comparison shows clear evidence that clusters of the composition (MgO)3k (k = 1-5) form hexagonal tubes{,} which confirm previous theoretical predictions. For the intermediate sizes (n [not equal] 3k) cage-like structures containing hexagonal (MgO)3 rings are identified. Except for the cubic (MgO)4 no evidence for bulk like structures is found.},
  year = {2012},
  journal = {Physical Chemistry Chemical Physics},
  volume = {14},
  pages = {2849-2856},
  publisher = {The Royal Society of Chemistry},
  url = {http://dx.doi.org/10.1039/C2CP23432G},
  doi = {10.1039/C2CP23432G},
  language = {eng},
}