These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Infrared spectra of transition-metal dioxide anions: MO2- (M = Rh, Ir, Pt, Au) in solid argon.
    Author: Gong Y, Zhou M.
    Journal: J Phys Chem A; 2009 Apr 30; 113(17):4990-5. PubMed ID: 19334695.
    Abstract:
    Transition-metal dioxide anions RhO(2)(-), IrO(2)(-), PtO(2)(-), and AuO(2)(-) were produced from cocondensation of laser-ablated metal atoms and electrons with dioxygen in excess argon at 6 K. Photosensitive absorptions were assigned to the antisymmetric stretching vibration (nu(3)) of the metal dioxide anions from isotopic shifts and splittings as well as theoretical frequency calculations. On the basis of the observed nu(3) vibrational frequencies for M(16)O(2) and M(18)O(2), the anions are estimated to be linear or near linear. Density functional calculations at the DFT/B3LYP level predicted that the third-row transition-metal dioxide anions IrO(2)(-), PtO(2)(-), and AuO(2)(-) have singlet, doublet, and triplet ground states with linear structures, while the RhO(2)(-) anion was predicted to have a slightly bent geometry.
    [Abstract] [Full Text] [Related] [New Search]