Tersoff and Brenner developed the REBO model of these theoretical constructs. In the Tinker software package, these constructs are analyzed using the GDA and SCAN programs. A simple one of these constructs has three parameters, including the coupling constant a equal to [read slowly] “the square root of the force constant divided by the well depth divided by 2.” To locate certain points on these constructs, Peng and Schlegel combined quasi-Newton and synchronous transit methods. A Hessian matrix is created for (*) stationary points on these constructs using geometry optimization. They’re not bands, but at conical intersections on these constructs, the Born–Oppenheimer approximation breaks down. A type of these constructs that uses an anharmonic oscillator to model diatomic systems is named for Morse. Saddle points on these graphs correspond to transition states. For 10 points, name these graphs that model a namesake variable in terms of atom positions. ■END■
ANSWER: potential energy surfaces [or PES; or potential energy landscapes, potential energy functions, potential energy hypersurfaces, or potential energy profiles; accept Morse potentials or Morse/Long-range potentials or MLR potentials until “Morse” is read; prompt on More O’Ferrall–Jencks plots; prompt on reaction coordinate diagrams; prompt on potential energy or energy or surfaces or landscapes; prompt on potentials by asking “which are used to generate what constructs?”]
<KP, Chemistry>
= Average correct buzz position