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SUMMARY:Toward the Use of IR Spectroscopy to Understand the Structures of S
 urface Metal Carboxylates
LOCATION:Chemistry A101
TZID:America/Denver
DTSTART:20250128T160000
UID:2026-03-16-00-42-03@natsci.colostate.edu
DTSTAMP:20260316T004203
Description:About the Seminar:\n\nActivated carbons are one of the primary 
 ways of removing toxic pollutants\, such as heavy metals\, per- and polyfl
 uoroalkyl substances (PFAS)\, and microplastics\, from the environment. Ho
 w metals\, which facilitate substrate binding\, adsorb onto these materia
 ls are poorly understood and pose research challenges due to their porous 
 structure and large surface area. Carboxylate functional groups\, present 
 on activated carbon surfaces\, are known to catalyze metals through monode
 ntate binding or chelation. Ethylenediamenetetraacetic acid (EDTA) is a hi
 ghly accommodating chelator with six coordination sites that form a metal-
 carboxylate cage. Vibrational frequency features of carboxylates are defin
 ed by distinct OCO asymmetric and symmetric stretches. We discuss utilizat
 ion of OCO peak analysis from [M(II)·EDTA]2– structures to better und
 erstand how these metals coordinate to activated carbons. 4:00 pm
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