Harms from brochure Professor Harms received B.A. and M.S. degrees from S I U- Edwardsville, and his Ph.D. from UMSL.  He joined the UMSL chemistry faculty as Assistant Teaching Professor in 2019 following the completion of his doctoral degree.  While a graduate student at UMSL, he taught advanced chemistry courses at both UMSL and SIUE.

chf48@mail.umsl.edu
Office: B316C
Phone: (314) 516-5326
Fax: (314) 516-5342

Research Interests

Professor Harms research has focused on the collection and interpretation of high-resolution spectra of small, metal-containing molecules in the gas-phase using a technique called intracavity laser absorption spectroscopy.  His recent work has examined 5d transition metal compounds, characterizing deviations from quantum mechanical models that result from the breakdown of the Born-Oppenheimer approximation and the differences in nuclear size between different metal isotopes.


Selected Publications

 

″Analysis of the A Ω=1 - X3Σ-0+ transition of PtS observed by intracavity laser spectroscopy with fourier transform detection (ILS-FTS), and computational studies of electronic states of PtS″, L. C. OʹBrien, J. C. Harms, J. J. OʹBrien and W. Zou, J. Mol. Struct., 2020, 1211, 128024.

″Identification of two new electronic transitions of TaF using intracavity laser spectroscopy″, K. N. Bales, J. C. Harms, L. C. OʹBrien and J. J. OʹBrien J. Mol. Spectrosc. 2019, 365, 11208

“Mass-independent Dunham analysis of the known electronic states of platinum sulfide, PtS, and analysis of the electronic field-shift effect,” J. C. Harms, L. C. O’Brien, and J. J. O’Brien, J. Chem. Phys. 2019, 151094303.

“Mass-independent Dunham analysis of the [7.7] Y 2Σ+ ‑ X 2Πi and [16.3] A 2Σ ‑ X 2Πi transitions of copper monoxide, CuO,” J. C. Harms, E. M. Grames, S. Yun, B. Ahmed, L. C. O’Brien, and J. J. O’Brien, J. Mol. Spec., 2019, 363, 111173

“Rotational analysis of the [15.1] A″- 1A′ transition of CuOH and CuOD observed at high reolution with intracavity laser spectroscopy,” J. C. Harms, L. C. O’Brien, and J. J. O’Brien, J. Mol. Spec., 2019. 362, 8.

“Mass-independent Dunham analysis of the [13.8] Ω=3/2 – X 2Π3/2 transition of platinum monochloride, PtCl, observed by intracavity laser spectroscopy: Periodic trends in the M+X- bonding model (M=Ni, Pt; X=F, Cl),” J. C. Harms, J. Wu, S. Mian, L. C. O’Brien, and J. J. O’Brien, J. Mol. Spec., 2019, 359, 6.

“Identification and characterization of two new electronic states of PtF: Analysis of the (2,1), (1,0), (0,0), (0,1), (1,2), and (0,2) bands of the [15.8 + x] Ω=5/2 – B 2Δ5/2 transition,” J. C. Harms, L. C. O’Brien, and J. J. O’Brien,  J. Mol. Spec., 2019, 355, 101.

“The spin-forbidden a 4Σ- ‑ X 2Π1/2 transition of GeH detected in absorption using intracavity laser spectroscopy,” J. C. Harms, L. C. O’Brien, and J. J. O’Brien, J. Chem. Phys.,2018, 148, 204306.

“Identification of two new excited electronic states of NiCl: Analyses of the (1,0) and (0,0) bands of the [13.5] 2Φ7/2 – [0.16] A 2Δ5/2 and (0,0) band of the [13.8] 2Π1/2 - [0.38] X 2Π1/2 transitions,” J. C. Harms, E. M. Grames, S. Han, L. C. O’Brien, and J. J. O’Brien, 2017, 333, 36.

“The near-infrared spectrum of NiCl: Analysis of vibrational components of system G and H between 12,500 cm-1 and 13,750 cm-1,” J. C. Harms, C. N. Gipson, E. M. Grames, J. J. O’Brien, and L. C. O’Brien, J. Mol. Spec., 2016, 321, 78.