Caulton Lab
alyssa-cabelof

Alyssa Cabelof

Graduate Student

acabelof@iu.edu

Biography

I am from Michigan and I graduated from Grand Valley State University with a B.S. in chemistry. As an undergraduate at GVSU, I worked for Professor Richard Lord, doing computational chemistry, primarily analyzing the electronic structure of early transition metal complexes. I spent a summer in a synthetic lab at Wayne State University, working under Professor Stanislav Groysman designing and synthesizing low-coordinate transition metal alkoxide complexes for the activation of small molecules. That summer research experience was the driving force in my decision to continue synthesis in graduate school. This brought me to Indiana University to work in Ken Caulton’s group to continue exploring catalytic ways to activate small molecules and recycle them into more useful starting materials.


Research Projects

My research focuses on the design and synthesis of transition metal compounds that can bind and aide in subsequent nitrate reduction. Nitrates are harmful environmental pollutants that contain nitrogen in its highest oxidation state—N+5. I have successfully bound nitrate to both cobalt and nickel supported by a novel pincer ligand, PNNH, which is comprised of a central pyridine donor flanked by a phosphine and pyrazolyl arm. In general, our group has employed an unusual reductant, coined the “Mashima reagent” to reduce these high-oxidation state nitrogen oxyanions. My work with (PNN)Ni(NO3) and the Mashima reagent thus far has demonstrated complete deoxygenation of the nitrate ligand to give a transient nitride, which is then intramolecularly reduced by the phosphine arm in the pincer. The low coordination number of the resulting nickel leads to aggregation, which is depicted below. This demonstrates total reduction of the nitrogen from +5 to -3 in the product cluster.

 

My work now focuses on catalytic nitrate reduction, which will begin with a “protected” phosphine pincer, illustrated below. Once the vulnerability of the pincer is turned off, we can imagine that following complete deoxygenation, reaction of the transient nitride with an additional equivalent of the Mashima reagent will reductively silylate the high-energy intermediate, giving rise to the seemingly conventional product (PNNH)Ni(N(SiMe3)2. This proposed catalytic cycle is depicted below.

 

 


trx casino online | party time slots | blue casino online | book of ra online casino | redmi note 4 sim slot | casino skrill deposit | bc game casino review | ahti casino review | casino sites seychelles | casino 777 belgique | m2 slot types | casino estoril online | 888 casino 88 free | expansion bus slots | zodiac casino betrug | latitude e6530 slots | casinos en ligne canada | bestelwagen slot gatelock | online casino slovenija | high limit slot wins 2025 | gamble everything by rumi | hotels at foxwoods casino | gamble house wiki | 3 slot of ram laptops | atlantic city slots | best non gamstop casino | champions goal casino | cash advance casino atm | two slot bike stand | gambling games dnd 5e | juego de casino la ruleta | maria casino promo code | what is casino game | online casino brazil | gambling machines free | blitzino online casino | gambling thesis pdf | fruit frenzy slot | casino meaning in kannada | casino games logo | sheik yer money slot | online casino top | casino number game | casino mt pleasant mi | core 2 duo ram slots | cda college casino | outline of rom slots | php casino script | tangiers casino codes | free bitcoin gambling | best gambling moviies | new york casino info | win spirit casino | craps casino table games | slot game logo design | gambling friendly banks | macau casino revenue | real money casino apps | zahranicne online casino | lions pride slot | van der valk casino | free 5 pound mobile slots | casino real tournaments | 21 gambling movie | sodimm memory slots | coins game online casino | ng slots youtube | upes slot booking | casino gran madrid | south point casino spa | c casino game source code | 54 slot 6 pole winding | gaming club online casino | nokia c5 sim slot | casino blackjack online | hybird slot mean | qmobile e2 sim slot | mr beast casino app | baixar pin up casino | casino em lisboa | golden dragon casino game | best online slot machines | crown casino online | slot machine hack device | bets io casino | best slot car tracks | macau casino southcenter | uk game slots | sim card slot laptop hp | jungle books slot | scr888 casino download | casino kutsu kaveri | loki casino no deposit | caesars casino free spins | gambling money name | casino barriere biarritz | pci slot cover | lion king slot | gamble woman tumblr | free penny slots | best slot sites uk | zodiac casino bewertung | dell 7040 m2 slot | azure deployment slots | take 5 slots download | ng youtube slots | mascot gaming slots | elitebook 6930p sim slot | paf casino aland | casino film youtube | secure mobile casino | zodiac casino mobile | zodiac casino bonus | uk casino license | casino in bavet city | new town nd casino | bolt slot grid | jack bitcoin casino | slot kapot hilversum | jack gold casino | 802 11 time slots | 3 slot of ram laptops | gods of greece slots | game slot format | roulette live casino | half price slot play | gold coast casino review | vintage win slot game | leovegas casino login | shooting star casino | mbit casino codes | bonus casino online 2025 | oneplus 2 microsd slot | nokia x2 sim 2 slot | bonus online casino games | vpn for online gambling | online casino leitfaden | cafe casino real money | mcw casino log in | dual slot gpu | ac casinos on boardwalk | ops slot meaning | best online nj casino | impact of gambling | apache casino careers | casino birthday party | slot phone swap deal |