This is an old revision of this page, as edited by 131.130.30.233(talk) at 15:08, 14 January 2013(Crystal structure set to hexagonal close packed (hcp). Hexagonal could be mistaken for "simple hexagonal", although just the lattice system is hexagonal. (Reference: C. Kittel, Introduction to Solid State Physics)). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.
Revision as of 15:08, 14 January 2013 by 131.130.30.233(talk)(Crystal structure set to hexagonal close packed (hcp). Hexagonal could be mistaken for "simple hexagonal", although just the lattice system is hexagonal. (Reference: C. Kittel, Introduction to Solid State Physics))
^Yttrium and all lanthanides except Ce and Pm have been observed in the oxidation state 0 in bis(1,3,5-tri-t-butylbenzene) complexes, see Cloke, F. Geoffrey N. (1993). "Zero Oxidation State Compounds of Scandium, Yttrium, and the Lanthanides". Chem. Soc. Rev. 22: 17–24. doi:10.1039/CS9932200017. and Arnold, Polly L.; Petrukhina, Marina A.; Bochenkov, Vladimir E.; Shabatina, Tatyana I.; Zagorskii, Vyacheslav V.; Cloke (2003-12-15). "Arene complexation of Sm, Eu, Tm and Yb atoms: a variable temperature spectroscopic investigation". Journal of Organometallic Chemistry. 688 (1–2): 49–55. doi:10.1016/j.jorganchem.2003.08.028.