Kenneth C. JandaProfessor, Chemistry |
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Research Interests |
Chemical Physics, Gas Hydrate Clathrates, van der Waals Clusters | |
| URL | Research Group Web Page | |
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Academic Distinctions |
Sigma Xi Undergraduate Research Award National Science Foundation Predoctoral & Postdoctoral Fellow Alfred P. Sloan Fellow Camille and Henry Dreyfus Foundation Teacher-Scholar Fulbright Fellow Fellow of the American Physical Society |
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| Appointments |
Research Associate, The University of Chicago 1977-1978 Visiting Professor, Universit de Paris-Sud, 1986 Visiting Professor, Universit Paul Sabatier, 1996 |
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Research Abstract |
We use molecular spectroscopy and quantum theory to understand how non-chemical interactions affect the dynamics of chemical bonds. One of our goals is to build a solvation shell around a chromophore one atom or molecule at a time. Over the years, the bond energies between most of the noble gas atoms and the halogen molecules have been measured. Our chromophore of choice, at present, is bromine. If a noble gas atom is attached to the side of a bromine molecule, it has little effect on the bromine spectrum except that it can quench bromine vibrational excitation. The time scale for this quenching ranges from a few ps to a few ms depending on the bromine electronic and vibrational state. In comparison, if the noble gas atom is attached to the end of the bromine molecule, the spectrum is dramatically different from that of the free molecule. This is because the noble gas atom occupies the space of the bromine LUMO. Currently, we are exploring the effects of multiple neon atoms attached to bromine. In the near future, we will perform similar studies for water molecule addition to bromine. We have already studied how the bromine spectrum changes upon aqueous solvation and in solid hydrate-clathrates. Please see the group web page and recent publications for more information. |
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| Publications | "On the Unusual Properties of Halogen Bonds: A Detailed ab Initio Study of X-2-(H2O) (1-5) clusters(X = Cl and Br)," Bernal-Uruchurtu MI, Hernandez-Lamoneda R, Janda KC, Journal of Physical Chemistry A, 2009, Vol 113, 19:5496-5505 (May 14). | |
| "Propane Clathrate Hydrate Formation Accelerated by Xenon," Abbondondola JA, Fleischer EB, Janda KC, Journal of Physical Chemistry C, 2009, Vol 113, 11:4717-4720 (Mar 19). | ||
| "Dynamical interrogation of the hydration cage of bromine in single crystal clathrate hydrates versus water," I. U. Goldschleger, G. Kerenskaya, V. Senekerimyan, K. C. Janda and V. A. Apkarian, Physical Chemistry Chemical Physics, 2008, 48:7189. | ||
| "Product state resolved excitation spectroscopy of He-, Ne- and Ar-Br2 linear isomers: Experiment and theory," Jordan Pio,Wytze E. van der Veer, Craig R. Bieler, and Kenneth C. Janda, Journal of Chemical Physics, 2008, 128:134311. | ||
| "Two Dimensional H2O-Cl2 and H2O-Br2 potential surfaces: an ab initio study of ground and valence excited electronic states," Ramn Hernndez-Lamoneda, Victor Hugo Uc Rosas, Margarita I. Bernal Uruchurtu, Nadine Halberstadt, and Kenneth C. Janda, Journal of Physical Chemistry A, 2008, 112:89-96. | ||
| "Polymorphism in Br2 clathrate hydrates," I. Goldschleger, G. Kerenskaya, K. C. Janda, and V. A. Apkarian, Journal of Physical Chemistry A, 2008, 112:787-789. | ||
| "Spectroscopic Signatures of Halogens in Cathrate Hydrate Cages.2. Iodine," Galena Kerenskaya, Ilya U. Goldschleger, V. Ara Apkarian, Everly Fleisher and Kenneth C. Janda, Journal of Physical Chemistry A, 2007, 111:10969-10976. | ||
| "Time dependent pump-probe spectra of NeBr2," Jose A. Cabrera, Craig R. Bieler, Benjamin C Olbricht, Wytze van der Weer and Kenneth C. Janda, J. Chem. Phys., 2005, 123, Art. No. 054311. | ||
| "Structure and stability of Ne+Hen: experiment and diffusion quantum Monte Carlo theory with on the fly electronic structure," Carrie A. Brindle, Melissa R. Prado, Kenneth C. Janda, Nadine Halberstadt and Marius Lewerenz, J. Chem. Phys., 2005, 123, Art. No. 064312. | ||
| "Anharmonic Vibrational Spectroscopy Calculations for (NH3)(HF) and (NH3)(DF): Fundamental, Overtone, and Combination Transitions," Carrie A Brindle, Galina M. Chaban, R. Benny Gerber and Kenneth C. Janda, Chem. Phys. Phys. Chem., 2005, 7:945-954. | ||
| "Transition from Hydrogen Bonding to Ionization in (HCl)n(NH3)n and (HCl)n(H2O)n Clusters: Consequences for Anharmonic Vibrational Spectroscopy." Chaban G. M., Gerber R. B., Janda K. C. J. Phys. Chem., 2001, 105: 8323-8332. | ||
| "Structure and spectroscopy of the He2Cl2 van der Waals cluster," Marta I. Hernndez, Nadine Halberstadt, William D. Sands and Kenneth C. Janda, J. Chem. Phys. 2000, 113, 7252-7267. | ||
| "The Dynamics of Noble-Gas Halogen Molecules and Clusters," Andreas Rohrbacher, Nadine Halberstadt and Kenneth C. Janda, Ann. Rev. Phys. Chem. 2000, 51, 405-33. | ||
| "Charge Transfer and Fragmentation of Liquid Helium Droplets doped with Xenon," Thomas Ruchti, Berton E. Callicoatt and Kenneth C. Janda, Physical Chemistry Chemical Physics 2000, 2:4075-4080. | ||
| "Measurement of the electronic wave function: Separated atom wave function analysis of the R-dependent hyperfine constants of the iodine monochloride A state," William S. Barney, Colin M. Western and Kenneth C. Janda, J. Chem. Phys. 2000, 113:7211-7223. | ||
| Link to this profile | http://www.faculty.uci.edu/profile.cfm?faculty_id=2048 | |
| Last updated | 06/10/2009 | |
