By Norman L. Allinger

In addition to the classical force fields above, many other force fields have been developed for small drug molecules or macromolecules. The MM2, MM3, and MM4 force fields were developed by Norman L. Allinger for a broad range of chemicals, and CFF is a family of force fields adapted to a broad variety of organic compounds, polymers, metals, and so on. The MMFF force field was developed at Merck for a broad range of chemicals. ReaxFF is a reactive force field, developed by William Goddard and coworkers, is fast, transferable, and the computational method of choice for atomistic-scale dynamics simulations of chemical reactions. 

Seconding letters to the authors proposal were kindly provided by Nobel laureates William N. Lipscomb (Harvard Lfniversity) and Roald Hoffmann (Cornell University), as well as Norman L. Allinger (University of Georgia), Richard W. Counts (QCPE), Kendall N. Houk (University of Pittsburgh), Daniel A. Kleier (Shell), and Peter A. Kollman (University of California, San Francisco). On October 15, 1984, the proposal was approved by the GRC Board of Trustees, and Dr. Alexander M. Cruickshank, then director of the Gordon Research Conferences, scheduled the first conference for the summer of 1986. 

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