Please acknowledge the use of the following NMR spectrometers in publications using the statements shown below:

Bruker DSX300

 "This material is based upon work supported by the National Science Foundation under equipment grant no. DMR-9975975

Bruker DRX500

"This material is based upon work supported by the National Science Foundation under equipment grant no. CHE-9974928.”

Bruker AV600

"This material is based upon work supported by the National Science Foundation under equipment grant no. CHE-0116853”