Sam Shepard

No, not that Sam Shepard, sorry.
Assistant Professor of Physical Chemistry at @AlleghenyCol
Postdoc w/ @CastellanoGroup, PhD w/ Damrauer Lab @CUBoulder

[Vivek Tiwari @softpolaron]

Read the truly fascinating science story behind the invention of 2D electronic spectroscopy in 1998 by Prof. David Jonas, then Assistant Prof @CUBoulder @JChemPhys

https://t.co/8vO64XqWKW

Special to write this with @bardmital , a friend and former colleague in the Jonas group.

[Sam Shepard @sgshepard]

@konstructivizm While I appreciate the awe in your post, it's worth taking some time to acknowledge the source (from 2013) and the authors:
https://t.co/Z57aQTq6s5

[Sam Shepard @sgshepard]

Photochemistry is a great tool for making strained heterocycles! Out now in ACS Organic Inorganic AU. I'm grateful to my colleagues at @haverfordedu for support and research collaboration and to @alleghenycol for helping make this work open access!
https://t.co/pv1B8mjJNX

[Allegheny College @alleghenycol]

🧪 Hear from co-presidents of the Chemii chemistry club, Lauren Schmader '26 and Sydni Junker '26, about how Allegheny faculty supported them every step of the way!

🌟 Connect with an Allegheny professor by scheduling a personalized visit experience at https://t.co/Gka3gqdS7i.

[Sam Shepard @sgshepard]

Incorporation of the CW pump to create a steady state population of the initial charge separated molecule is a great way to demonstrate the two-photon nature of this process. Beautiful work which brings us close to replicating the multiphoton nature of biological photosynthesis.

[Oliver Wenger @WengerOliver]

New molecular design absorbs 2 photons to store 2 positive and 2 negative charges

100 ns lifetime, 3 eV energy storage, and 37% quantum yield

A step toward multi-electron photochemistry

Mathis Brändlin and @BjornPfund in @NatureChemistry

https://t.co/CwtRDeoRY3

[Sam Shepard @sgshepard]

Some excellent undergraduate chemistry research presentations at the 2024 ISCC conference at @LincolnUofPA .

Special congratulations to @haverfordedu students Aliya, Kyra, Trinity, Hannah, and Sidney from the Shepard and Seebald Labs for winning presentation awards!

[Sam Shepard @sgshepard]

@RacicotLeanne I buy a bag of Scandinavian Swimmers every time I go to Trader Joes. They're like a tastier, multi-flavor Swedish Fish! Seconding the mango recommendation from @Patrick_Lutz42 as well.

[Sam Shepard @sgshepard]

The lab is photo-flow ready! @haverfordedu

[Sam Shepard @sgshepard]

@DrCBrew disp('You are not done yet!') Add another 4000 lines!
That's awesome to see that it's come in handy for your research. I'm teaching Quantum this semester and the class is using Python for our computational work, though I miss MATLAB!

[Noah Smith 🐇🇺🇸🇺🇦🇹🇼 @Noahpinion]

America is suffering from a lack of bureaucracy -- by which I don't mean rules and red tape, but a competent civil service capable of getting things built cheaply.

We need to bring back the bureaucrats!

https://t.co/fwt9SzKYkN

[Sam Shepard @sgshepard]

@NaOHBartfield He's less useful than other items on my shelf, but it never hurts to have a possum on hand....

[Sam Shepard @sgshepard]

Starting tomorrow, I enter the period of maximum happiness loss.

[NWS Mount Holly @NWS_MountHolly]

Starting tomorrow, we enter the period of maximum daylight loss across our region. Every day from tomorrow until the end of September, we lose approximately 2 minutes and 36 seconds of daylight every day.

[Sam Shepard @sgshepard]

@hiltonlab @JFlowChem @UCLLifeSciences This is a great resource and hopefully will lead to further standardization of light flux in reports on photo-flow chemistry. Would you be willing to share the STL files by any chance so I could print one for my lab?

[Rachel Weiss Clark @Rachel591]

Capillary action + fluorescent dyes #FluorescenceFriday

[Sam Shepard @sgshepard]

@andrechemist My guess is that the chemistry knowledge it will test is the Moblin Combustion reaction using a red barrel as starting material.

[Sam Shepard @sgshepard]

@KCGOrtiz My headcannon: The eternal conflict between the spiral and anti-spiral forces is just a battle between fans of R and S enantiomers

[Sam Shepard @sgshepard]

It was great celebrating the hard work of all of the chemistry majors at @haverfordedu this afternoon in our chemistry department senior poster session. Thanks also to the students over at @BrynMawrCollege who brought posters over to present.

[Sam Shepard @sgshepard]

@SuperChemGirl Fantastic news! NCSU chemistry is a great program and they're lucky to have you. I'll stop by the next time I'm in Raleigh.

[Sam Shepard @sgshepard]

Just now discovered that the regal portrait of Legendre from my textbooks is wrong and the mathematician that helped me turn internal energy into Gibbs free energy actually had the same expression I made throughout my statistical mechanics class. https://t.co/7yafrCvBLW

[Sam Shepard @sgshepard]

@Rachel591 There's something so adorable about those dang dancing Barbie dogs that I love so much. I taught an undergrad photochem class last semester, but I wish it was a spring course just so I could share this in lecture. Keep up the good work and the teens will care about TTA one day!