Manasseh Osei

@TheCarschGroup @HSresearchgroup Excited to be here!

Welcome, @osei__k to the Carsch Group! Dr. Osei joins us from @HSresearchgroup at Rice, where his prior research focused on multimetallic clusters for small molecule activation. Great to have you here!

Exciting New work @HSresearchgroup ! 🚀 We synthesized dinuclear divalent transition metal complexes using a cyclen-based octaamine ligand. XRD and DFT reveal diverse metal-metal interactions including a Cr-Cr quadrupole bond! 🧪 Biomimetic reactivity platform? Check it out!

Congratulations to my student @osei__k who led us to this nice paper pubs.rsc.org/en/content/art… Cheers to @SaberMirzaei, Saeed, and Agustin who also contributed to this effort. 🎉👍

Synthesis of Square Planar Cu4 Clusters by @HSresearchgroup onlinelibrary.wiley.com/doi/10.1002/an…

Scientific community: I'm looking for postdocs to join my research team, if you are interested to work with us please follow this link hernandezsanchezgroup.org/openings.html

Let’s talk chemistry tomorrow #ACSSpring2022

Are you a NOBCChE student member going to ACS SD? Want ACS membership registration prices but aren’t an ACS member? Great news! Now all NOBCChE student members (grad and undergrad) get a year of ACS membership free! New or renewing! Email: westregion@nobcche.org for help!

Last week to apply - review of faculty applications will begin Oct. 15th #chemjobs #academicjobs Come join us at @PittTweet and the growing @PGHQuantum community!

I am excited to present my poster in the ongoing #NOBCCHESCICOM21. In this work, I investigated how gold substrate modulates the properties and functionality of covalent organic frameworks. We employ highly accurate GW methods for elucidating the properties of the interface.

@icjennikins @HSresearchgroup @_edisoncastro @Pitt_Chemistry Thanks Dr Yang! Raúl mentioned that sometime ago but never got around to trying the reactions he suggested. But yeah, that’s something we will definitely look into.

Excited to share a summary of my work on M4 cluster chemistry @HSresearchgroup for #BlackInChemPosterComp and #BlackInChem. Please leave questions, comments and suggestions below.

@pinenut666 @HSresearchgroup @_edisoncastro @Pitt_Chemistry That’s what we think. Since they are almost degenerate, there could be de localization over the four copper atoms in a redox event. However we are currently looking into hole delocalization from anywhere between 1 to 4e oxidation

@osei__k @HSresearchgroup @_edisoncastro @Pitt_Chemistry Cool work. Does the odd electron get distributed evenly over the four coppers as suggested by the HOMO? I look forward to seeing mixed-metal complexes and if that causes the valence to localize. Cheers.

@GriceChemistry @HSresearchgroup @_edisoncastro @Pitt_Chemistry Sure! Thanks!

@osei__k @HSresearchgroup @_edisoncastro @Pitt_Chemistry I can't access this from home, but maybe check this one and the papers that cite this: sciencedirect.com/science/articl…

@GriceChemistry @HSresearchgroup @_edisoncastro @Pitt_Chemistry Is this different from using it as a standard?

@osei__k @HSresearchgroup @_edisoncastro @Pitt_Chemistry Hmmm. You should be able to compare vs ferrocene and get the number of electrons using electrochem methods.

@GriceChemistry @HSresearchgroup @_edisoncastro @Pitt_Chemistry We don’t observe any further echem events. We’re trying to establish the establish the number of electrons by uv-vis/hnmr experiments.

@osei__k @HSresearchgroup @_edisoncastro @Pitt_Chemistry Cool complex! Does it have further redox chemistry in the oxidative or reductive directions?

@ghutchis @HSresearchgroup @_edisoncastro @Pitt_Chemistry From the us vis characterizations I have attempted, we see some bands at in the near uv region but we probably will have to look into it a little bit more

@osei__k @HSresearchgroup @_edisoncastro @Pitt_Chemistry Yeah, some spectroelectrochemistry might be interesting. Do you see MLCT / LMCT in the UV/Vis?

@ghutchis @HSresearchgroup @_edisoncastro @Pitt_Chemistry The SWV of the Cu4 is at -0.02V and the Fc/Fc+ plus comes in after the measurements so there is a masking of the Cu4 SWV. The Cu-Cu distance in the reductase ranges from 2.54-3.36Å. I think the distances we are seeing are optimal for ē/hole delocalization

@osei__k @HSresearchgroup @_edisoncastro @Pitt_Chemistry This is great - does the SMV showing the Fc/Fc+ peak? How does the Cu-Cu distance compare with the reductase analogue?

@amymariecium Is this going to be on zoom?

Shameless plug alert🚨: My ACS talk is tomorrow (4/8) at 5:20pm Eastern/2:20pm Pacific. Come listen if you like exfoliatable vdW materials, cyanometalates, and/or metal cluster chemistry!

Check out our second work on tubularenes! pubs.acs.org/doi/10.1021/ac…