Dr. Marshak featured in the Rhode Island Echo

Aug. 15, 2019

Dr. Marshak was featured in the Sports section of the August 2019 issue of the Rhode Island Echo for his massive 32 lb striped bass that he caught in Newport RI on light tackle using a live sand eel. He caught this lunker aboard Captain John Sheriff's boat "Fish On...


CU Boulder Today: A high-performance battery for renewable energy storage

July 25, 2019

A low-cost, high-performance battery chemistry developed by University of Colorado Boulder researchers could one day lead to scalable grid-level storage for wind and solar energy that could help electrical utilities reduce their dependency on fossil fuels.


Chelated Chromium Electrolyte Enabling High-Voltage Aqueous Flow Batteries

July 25, 2019

Widespread adoption of renewable energy is limited by the lack of low-cost long-duration energy storage. Redox flow batteries are an attractive option to provide this type of storage because their power and energy components can be scaled independently; however, systems commercialized to date have failed to realize this low-cost potential,...


Exploring Real-World Applications of Electrochemistry by Constructing a Rechargeable Lithium-Ion Battery

June 26, 2019

The assembly and testing of a rechargeable 3 V lithium-ion battery in the common 2032 coin cell format is demonstrated in a classroom environment without the use of expensive and complex air-free equipment. The procedure has been developed to eliminate the use of highly toxic materials and flammable solvents, can...


Sterically encumbered β-diketonates and base metal catalysis

June 24, 2019

Metal coordination complexes of the sterically hindered β-diketonate, 2,6-dimesitylbenzoyl pinacolone (esac), are reported for Co, Ni, Cu, and Zn. All four form ML 2 -type complexes with typical coordination behavior for late-metal β-diketonates, however the effects on established electrochemistry and reactivity vary somewhat per metal. For example, the striking chemical...


Renewable energy battery research gets supercharged with NSF fellowship

May 14, 2019

Brian Robb wins the prestigious NSF Graduate Research Fellowship to support his research on redox flow batteries.


Synthesis of Sterically Hindered β-Diketones via Condensation of Acid Chlorides with Enolates

May 9, 2019

Bulky β-diketones have rarely exceeded dipivaloylmethane (DPM) in steric demand, largely due to synthetic limitations of the Claisen condensation. This work demonstrates hindered acid chlorides to be selective electrophiles in non-coordinating solvents for condensations with enolates. An improved synthesis of DPM is described (90% yield), and crowded β-diketones featuring bulky...

Dr. Marshak receives Honorable Mention in the UROP Outstanding Mentor Award

March 25, 2019

The UROP Outstanding Mentor Award recognizes a CU Boulder faculty member for their role mentoring a current undergraduate working on research, scholarly and creative projects in any major. Dr. Pang was nominated by mentee Sean Guderian and selected from numerous student nominations speaking to the value of mentorship and the...

Bulky B-Diketones Thumb

Bulky β-Diketones Enabling New Lewis Acidic Ligand Platforms

Sept. 21, 2017

The use of sterically encumbered β-diketonate ligands blocks the formation of M(acac)3 and generates a series of cis- or trans-M(acac)2 species with substitutionally labile halide and solvent ligands. These complexes demonstrate the ability of β-diketonates to act as weak π donors or π acceptors, depending on the metal and coordination geometry.


Dr. Marshak leads Mt. Rainier Expedition

Aug. 10, 2016

Mike Marshak led a successful expedition to summit Mt. Rainier in under 24 hours along the standard "Disappointment Cleaver" route. The team left the Paradise Trailhead (5400' elevation) at 6:30 PM on August 4th and reached Camp Muir (10,200') by 11 PM. After an hour rest, they roped up and...