Seminar

Structures of solvated metal ion (gold, manganese, nickel) by infrared multiphoton dissociation (IRMPD) spectroscopy and ab initio calculations

  • Date

    December 11,2015

  • Time

    11:00AM

  • Venue

    JL104

  • Speaker

    Mr. Yimeng Zhang Department of Earth Sciences, HKU

Molecular complexation and microsolvation processes play a key role in the transport of metals in aqueous fluids. Understanding the structure of molecular metal ions in aqueous media has therefore become a topic of intense research, with important implications for the transport of metals by vapor and isotopic fractionation processes at gas/liquid interfaces. In order to probe metal speciation and, in particular, the solvation environment around larger ion clusters, we have begun a systematic survey of representative metal-perchlorate clusters [Mn(ClO4)2n-1]+ (H2O)m, M=Mn, Ni, Cu, Co, Zn) using a combination of electrospray ionization (ESI), ion resonance mass spectrometry and tunable IR spectroscopy.