Education

1993 Ph.D. Physical Chemistry, University of California, Davis

Overview

I am fortunate to have had a job that I enjoyed - most of the time! As Director of the X-Ray Facility in the Chemistry Department at the University of Kentucky, I was involved in virtually all projects that required small-molecule single-crystal structure determination, as well as some that involved general X-ray diffraction. I also taught a course in crystallography (CHE-640) for graduate and advanced undergraduate students, and previously taught the Physical Chemistry lab course (CHE-441G). I served as a co-editor of Acta Crystallographica from 2007 to 2019, and then as Main Editor from 2019 to 2025. I also maintained this X-Ray Facility website for close to 25 years, hand coded since 2002.

Here is a publication list and a CV.

I have written a few tutorials, 'how-to' guides, programs, and scripts to help with crystallographic work. All source code is freely available here on the X-Ray Facility website. If you find any of the material useful, or if you find any errors, please let me know.

Some experiments with JavaScript animation:
  An early attempt at a rotating cubic lattice. A variant of this forms the banner graphic on the Internal page.
  Similar, but with a bit of manual tweaking and using three.js, so the animation is a lot smoother on mobile.
  Another variant with pulsing colours and redirection by dragging.

Rotating Platonic solids, more JavaScript:
  Tetrahedron
  Octahedron
  Cube
  Dodecahedron
  Icosahedron

Other shapes:
  Toroid - looks better with edges toggled off
  Knot - also better with edges off
    Try changing the last two parameters in knot.js

Some structure overlay examples:
  Two molecules
  Three Sn-complexes and a ligand
  Eight Sn-complexes
  17 molecules

Today's day number:

Total eclipse of the sun: Princeton, KY 2017/08/21