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Inorganic & Organometallic Research Projects/Directions in the Peters Lab . On Today’s Menu. Background info…a bit about me Group/Directional approach Projects 1-3 Future Directions. Three Distinct Directions/Projects.

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slide1
Inorganic & Organometallic

Research Projects/Directions

in the Peters Lab

on today s menu
On Today’s Menu
  • Background info…a bit about me
  • Group/Directional approach
  • Projects 1-3
  • Future Directions
three distinct directions projects
Three Distinct Directions/Projects
  • Suitable for students right out of CHE 1511 (or 1925). Inspire you to take CHE 3030?
  • Works with existing Departmental Instrumentation
      • NMR, IR, GC-MS, some UV-Vis
  • appeals to multiple student goals
      • Project nearing completion(quicker publication)
      • Coordination Chemistry projects (embryonic)
      • di-phosphane ligands (completely yours!)
  • RESULTS!! Publication in 2009, two in 2011 (!!), one in prep.
slide4
Direction 2
  • Direction 3

Preparation of Platinum Group Metal Complexes

Ligand Synthesis and Coordination Chemistry

diphosphane style!!

Electron rich

Electron poor

Direction 1

Ligand Synthesis and Coordination Chemistry

survey of typical om ligands
Survey of Typical OM Ligands

P(tBu)3

P(CxF2x+1)3

PPh3

olefins

P(OPh)3

PF3

Size

PMe3

P(OMe)3

CO

Electron Acceptor Ability

- few ligands bridge the electronic gap

- massive voids were recently noted [Cundari, JACS, 2003, 4318]

phosphane ligands
Phosphane Ligands
  • Commonly utilized inorganic ligand
  • Key Properties (all readily controlled)
      • sterics
      • sigma donation (electronics)
phosphine manipulation
Phosphine Manipulation
  • Sterics—Simple as changing the hydrocarbon ligand (Me, Et, tBu, Ph, etc)
  • s-donor / p-acceptor character not as simple
our approach bridge the gap
Our Approach—bridge the gap
  • Prepare phosphine ligands with an electronic influence of P(OR)3
  • Modification of PR3 framework with Rf
    • Similar to F/H swap
  • Chose Rf = C2F5, sought R2PRf series
    • R = Me, Et, iPr, tBu, Ph
project 1 generic ligand synthesis
Project 1—Generic Ligand Synthesis

Affectionately called pfepp (pentaflouroethyl)diphenylphosphine

pfepp has an awful lot of cousins/relatives; he has a huge family!!

For students out there…you can help add to the family!!

you make it first you name it
You make it first…you name it!!

Michelle Choate

Jennifer Phelps

Published in JOMC 2011

Project in progress

When do you want it

Published?

flip data born 3 february 2011
‘flip’ Data…born 3 February 2011

31P NMR spectrum, oodles of fluorine coupling

ligand coordination chemistry
Ligand Coordination Chemistry

Straightforward reaction, alkane solvent

Establish electronic influence of ligand

project 2 molly has friends
Project 2—Molly Has Friends!!

Choate et al. ActaCryst. E 2011

collaborative opportunities too
Collaborative Opportunities Too

Compounds like the one on the right interact with DNA

Dr. Wignot can help with the binding studies, my lab generates the complexes for testing (again…none of these have been made)…

remember that playground
Remember that Playground??

Think about this…so many ligands…never before synthesized.

SO MANY METALS!!

SO MANY OPPORTUNITIES

and that 3 rd project
…And that 3rd Project?

Electron rich

Electron poor

This one really excites me…cutting edge stuff

Take lab knowledge and extend it.

I referred to it as

inductively ‘unusual’

synthetic work of fiction nah
Synthetic ‘work of fiction’? Nah!

Two different types in fact!!

future directions just imagine
Future Directions?? Just Imagine

Work WITH me…I need YOUR help…where do you fit into this scheme? Imagine that!

You WILL get published

You WILL make things NO ONE else has ever made!

So many projects…

acknowledgements
Acknowledgements

--Mentoring Committee, Wilkes University

--National Science Foundation

-- Michelle Choate -- Jennifer Phelps

-- Jaimee Ash -- Justin Spott

-- Sara Frawley -- Dr. Russ Baughman

-- Jennifer Seat -- Dr. Jason Palcic

-- Misha Golynskiy -- Karl Pittard

-- Mary Ross -- Johnny Giles

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