Blog Archives

Once Again, GBCAs Grabbed the Headlines


Once again, gadolinium-based contrast agents (GBCAs) made the news. “MRI Patients Flush Gadolinium Into San Francisco Bay”  C&EN Latest News by Jyllian Kemsley. This time, it is the potential threat to the environment. On the flip side, it is a

Posted in MRI, organic radical

Triarylmethyl Radicals—the Discovery and Beyond


The discovery of organic free radical, the triarylmethyl radical, was reported in JACS by Moses Gomberg in 1900.1 The report ended with an interesting statement. “This work will be continued”—that is great! But “and I wish to reserve the field

Posted in In the Lab, organic radical

Challenges in Organic Radical Research in Rajca Lab


Organic radicals are typically unstable at ambient conditions. A molecule with an unpaired electron was once thought impossible until Moses Gomberg proved otherwise in 1900. The history of the discovery of organic radical is fascinating and worthwhile reading.  The discovery

Posted in In the Lab, organic radical

Carbon-Sulfur Bis[7]Helicene: [15]Helicenes with a Missing Link…


*This is the 5th post of the helicene series* After asymmetric synthesis of carbon-sulfur [11]helicene, we went back to the drawing board…. plugging away at the connection/annelation sequences…the next challenge was carbon-sulfur [15]helicene.  Here is the retrosynthesis. It seemed pretty

Posted in Chiral, Helicene

Advice for Graduate Students


Alright, Fall semester is upon us once again, starting on Monday! Wow, so many happy smiling faces around here.  Starting graduate school is surely exciting. It’s a new beginning…forget about the past record, it is all about the new ride.….The

Posted in Around the Lab, General

Big Smile


Yes, big smile….and I was in the mood to draw some cartoons…. Huh, I am right back into blogging?

Posted in Around the Lab, Uncategorized

UNL Chemistry Graduate Studies… and…Nebraska Advantages?


Hello, if you are considering graduate program in Chemistry, perhaps you should take a look at Nebraska. Hey, just look at the map…. Do you see…… the Nebraska Advantage? No, I am not making this up! “Look at a map

Posted in Around the Lab, General