Eckenhoff Research Group - Inorganic Chemistry

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Back Row, left to right: Seth Rohlwing (’20), Cameron Tinker (’19), Phillips Hutchison (’19), Mary Neil Hodl (’19) and Liam Rhodes (’20). Front row, left to right: Sarah Helland (’21), Will Eckenhoff, Keren Lee (’21), and Meghan Kiker (’19).

Group News:

The Eckenhoff Lab travelled to the University of Arkansas for the annual INBRE conference! Liam Rhodes (’20), Phillips Hutchison (’19), Mary Neil Hodl (’19) Cameron Tinker (’19), Will Eckenhoff, Sarah Helland (’21), Keren Lee (’21). (11/3/2018)

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Congratulations to Sarah Helland for willing first prize for her poster on solvatochromism at the Arkansas INBRE conference (11/3/2018)

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Congratulations to Meghan Kiker for winning first prize for her poster on photocatalytic hydrogen production in the Rhodes College Chemistry & Biochemistry Symposium. Sarah Helland (’21), Cameron Tinker (’19),  Will Eckenhoff, Phillips Hutchison (’19), Mary Neil Hodl (’19), Keren Lee (’21) and Meghan Kiker (’19)(10/23/2018)

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Congrats to Alison Chang on her first-authored paper in ChemistrySelect: ‪https://onlinelibrary.wiley.com/doi/abs/10.1002/slct.201800506 

Alison Chang ('18), John Dewar ('18), Meghan Kiker ('19), and Phillips Hutchison ('19) traveled to the National ACS meeting in New Orleans to present their research.

Our collaboration with the Brewster Lab at the University of Memphis was just published in Inorganic Chemistry!: http://pubs.acs.org/doi/full/10.1021/acs.inorgchem.7b02601

Congratulations to John Dewar for his first-authored publication on zinc enzyme mimicry in Inorganica Chimica Acta: https://www.sciencedirect.com/science/article/pii/S0020169317313634

Prof. Eckenhoff's first single author review was published in Coordination Chemistry Reviews! https://doi.org/10.1016/j.ccr.2017.11.002

Alison Chang presented her research on solvatochromic molybdenum complexes at the Arkansas INBRE conference on Oct 27-28, 2017.

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On 10/25/2017, Alison Chang('18), John Dewar('18), Meghan Kiker('19), Phillips Hutchison('19), and Cameron Tinker ('19) presented their research at the ACS Undergraduate Research Symposium at Rhodes College. 

Congratulations to Meghan Kiker for taking home 2nd place!

           

Eckenhoff Lab moves to new home in Robertson Hall starting in the Fall of 2017!

 

Congratulations to Alison Chang for winning the William Spandow Scholarship in Chemistry award (4/28/2017)

Alex Graves presented his poster at the ACS National Meeting in San Francisco (4/4/2017)

 

Project 1: Proton Reduction Catalysts for Artificial Photosynthesis

The main research area for the lab is the design, synthesis and evaluation of new proton reduction catalysts that produce hydrogen gas in aqueous environments.  This is an exciting project with a strong relevance to world events as energy sources are predicted to become increasingly scarce.  We will focus mainly on metal centered complexes using abundant first row metals such as cobalt and nickel.  We are especially interested in the “pendant base effect” known to greatly increase the activity of hydrogen evolution catalysts.  Our research attempts to better understand this effect while simultaneously developing new catalysts for this transformation. Once we synthesize our target metal complexes, we will evaluate them electrochemically and photochemically for their activity as hydrogen evolution catalysts.

Project 2: Zinc Complexes to Mimic the LpxC Enzyme in binding Anti-microbial Compounds

In a collaboration with the Cafiero and Peterson research groups, we are investigating the binding of potential anti-microbial drugs specifically targeting gram-negative bacteria, in an effort to curb infections common to healthcare facilities such as pneumonia and xxx. This project involves the synthesis of a variety of ZnTp* complexes and evaluating the binding of small molecules such as Acetylhydroxamic acid and acetic acid to the Zn center.  Once this process is well understood, we will further investigate the binding of the anti-microbial compounds, which are larger and much more complex. 

Project 3: Solvatochromic Molybdenum Complexes

Solvatochromism is a very interesting effect whereby the color of a metal complex, the hallmark of inorganic chemistry, changes in different solvent environments.  This effect is caused by a significant difference in the polarity of the ground state relative to the excited state.  In solvent environments of varying polarity, the excited state is eithers stabilized or destabilized, resulting in a energy shift of the frontier orbitals, changing the energy of absorption and by extension, reflection.  We will evaluate a series of interesting Mo complexes to more deeply understand this effect.

Group Members:

Meghan Kiker – 2019
Meghan Kiker – 2019
Mary Neil Hodl – 2019
Mary Neil Hodl – 2019
Phillips Hutchinson – 2019
Phillips Hutchinson – 2019
Cameron Tinker – 2019
Cameron Tinker – 2019
Liam Rhodes – 2020
Liam Rhodes – 2020
Seth Rohlwing – 2020
Seth Rohlwing – 2020
Sarah Helland – 2021
Sarah Helland – 2021
Keren Lee – 2021
Keren Lee – 2021

Group Alumni
Alex Graves (’17): Chemistry PhD Candidate - Washington University in St. Louis
Alison Chang (’18): Chemistry PhD Candidate – University of Oregon
John Dewar (’18): Chemistry PhD Candidate – Indiana University – Purdue University Indianapolis (IUPUI)