Chemistry

Science Building
CPO 2191
859-985-3318

Office Hours:
M–F, 8:00 a.m.–5:00 p.m.

Contact:
jay_baltisberger@berea.edu

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Teaching and Research Equipment and Facilities
The chemistry facilities at Berea College include:

  • a Mattson Research Series Fourier Transform Infrared Spectrometer (model RS1, 1994),
  • a Thermal-Nicolet Fourier Transform Infrared Spectrometer (model 380, 2007),
  • a Perkin-Elmer LS55 Luminescence Spectrometer (1999),
  • a Perkin Elmer Lambda 35 UV/Vis Spectrometer (1998),
  • a Finnigan LCQ Deca XP Max Electrospray Mass Spectrometer with Finnigan Surveyor Autosampler/HPLC interface (2004),
  • an HP 5890 GC with a 5972 Mass Spectrometer Detector, an HP 5890 GC with FID detector (1995),
  • an Aapptec Apogee automated peptide synthesizer (2005),
  • a Waters 1525/2487 HPLC with column heater and dual wavelength detector,
  • a Unicam 929 Flame Atomic Absorption Spectrometer,
  • a Perkin Elmer 2400 CHNS/O Elemental Analyzer,
  • an EG&G 273A Potentiostat/Galvanostat,
  • an EG&G 264A Polarograph/Stripping Voltammeter,
  • Six different I86 based LINUX workstations running GAUSSIAN98 and SIMPSON packages (among others),
  • an SGI O2 for molecular modeling applications,
  • two undergraduate research facilities (4th floor science building),
  • one large laboratory for underclassmen (general and organic chemistry) with 32 individual hoods,
  • and one smaller laboratory for upperclassmen (advanced lab sequence) with 16 individual hoods.

We currently own a 300 MHz JEOL Eclipse ECX Nuclear Magnetic Resonance Spectrometer which is equipped with a z-field gradient amplifier, a gradient probe, multinuclear capability, a 1.0 kW AMT 10-130 MHz power amplifier, a Jakobsen MAS probe supplied through Varian and a variety of other accessories. We use this instrument in research as well as for various laboratory experiments in our undergraduate curriculum.

Video describing a liquid helium fill (note this is a 65MB file you may want to save to HD)

Second part of video describing a liquid helium fill (note this is a 79MB file you may want to save to HD)

The kinds of experiments we have used the instrument for so far include:

  • Internal conformational exchange of N,N-dimethyl amide
  • Chemical ligand exchange of a bis collidine bromine(I) bromide salt
  • Structural studies of steriods using 2D NMR (progesterone, prednisone, cortisone acetate)
  • Chain length characterization of polyphosphate glasses using selective decoupling
  • Reaction substitution characterization of a cyclohexanone/cyclohexanol conversion
  • Measurement of molecular motion parameters using T1 inversion recovery experiments
  • Measurement of dipolar coupling constants and j-constants in acetone dissolved in a liquid crystal (providing a partial alignment of the acetone molecule)
  • Solvent suppression using z-gradients to simplify spectral interpretation in the presence of a large solvent peak (often times water)