Volume 33, Issue 4 pp. 449-454
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Combining Synchronous Transit and Quasi-Newton Methods to Find Transition States

Chunyang Peng

Chunyang Peng

Department of Chemistry, Wayne State University, Detroit, MI 48202, USA

H. Bernhard Schlegel: received degrees from the University of Waterloo and Queen's University, Canada (Ph.D., 1975, with Saul Wolfe). After postdoctoral studies at Princeton University (with K. Mislow and L.C. Allen) and at Carnegie-Mellon University (with J. A. Pople) he joined the Merck, Sharp, and Dohme Research Labs. Since 1980 he has been a Professor of Chemistry at Wayne State University. His current research interests are geometry optimization, energy derivative methods, and application of quantum chemical calculations to organic chemistry.

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H. Bernhard Schlegel

Corresponding Author

H. Bernhard Schlegel

Department of Chemistry, Wayne State University, Detroit, MI 48202, USA

Chunyang Peng: received his degrees from Hunan University, China and from University of Texas, Austin (Ph.D., 1992, with J.E. Boggs). He is currently a postdoctoral fellow with H.B. Schlegel.

Department of Chemistry, Wayne State University, Detroit, MI 48202, USASearch for more papers by this author
First published: 1993
Citations: 1,888

Abstract

A linear synchronous transit or quadratic synchronous transit approach is used to get closer to the quadratic region of the transition state and then quasi-newton or eigenvector following methods are used to complete the optimization. With an empirical estimate of the hessian, these methods converge efficiently for a variety of transition states from a range of starting structures.

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