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On the ab initio geometry optimization of molecular solutes

✍ Scribed by Rosanna Bonaccorsi; Roberto Cammi; Jacopo Tomasi


Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
917 KB
Volume
12
Category
Article
ISSN
0192-8651

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✦ Synopsis


Abstract

We present several variants of methods for the automatic search of optimum geometries of solutes via ab initio SCF procedures. The physical meaning of geometry optimization in solution is discussed. Advantages and disadvantages of the different variants are shown making use of calculations on the HF dimer with different basis sets, supplemented by information on the computational times. Suggestions for the most convenient strategies (which in part depend on the nature of the solute) are also done.


πŸ“œ SIMILAR VOLUMES


Geometry optimization in ab initio molec
✍ Dieter Poppinger πŸ“‚ Article πŸ“… 1975 πŸ› Elsevier Science 🌐 English βš– 424 KB

A gradient optimization procedure has been used to calculate equilibrium geometries for several small molecules in the framework of ab initio molecular orbital theory. The gradient method was found to be faster and more reliable than two direcl search procedures.

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## Abstract A web‐interface for geometry optimization of large molecules using a linear scaling method, i.e., cardinality guided molecular tailoring approach (CG‐MTA), is presented. CG‐MTA is a cut‐and‐stitch, fragmentation‐based method developed in our laboratory, for linear scaling of conventiona