Huckel Determinant Solver

The iterative capabilities of JavaScript are used to work through the determinant in analytical form. It is very easy to design one's own determinant ...
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JCE WebWare

William F. Coleman

WebWare for Classroom, Computer Room, Student’s Room

Wellesley College Wellesley, MA 02481

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Randall J. Wildman University of Wisconsin–Madison Madison, WI 53715

Hückel Determinant Solver Robert M. Hanson, Department of Chemistry, St. Olaf College, Northfield, MN 55057

Hückel Determinant Solver generates an energy diagram for simple Hückel molecular orbital systems. You can set up the determinant yourself or let the program do it by selecting specific compounds from a list. The program calculates the determinant explicitly, displaying the equation that must be solved first. The iterative capabilities of JavaScript are used to work through the determinant in analytical form. It is very easy to design one’s own determinant simply by selecting a dimension and clicking on an element to change its value between the two possibilities, 0 and 1. Ill-constructed determinants are flagged.

Figure 1. Hückel Determinant Solver. Clicking on a 0 or 1 changes the determinant, allowing for the solving of an infinite variety of systems.

JChemEd.chem.wisc.edu • Vol. 79 No. 11 November 2002 • Journal of Chemical Education

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