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Implementation of a Z-matrix approach within the SIESTA periodic boudnary conditions code and its application to surface adsorption

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Date
2006
Type
Journal Article

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Abstract

We implement a flexible Z-matrix approach in the density functional theory (DFT) periodic boundary conditions code, SIESTA. This allows a mixture of Z-matrix and Cartesian coordinates to be used for geometry specification and optimisation. In addition, geometry constraints in the form of fixed coordinates and fixed linear relationships between coordinates can be specified. A Z-matrix approach in condensed phase calculations can be advantageous, for example in studying molecular adsorption onto a surface, both in terms of flexibility and efficiency.We demonstrate our implementation for the case of thiol adsorption on the Au(111) surface.

Citation
Hoft, R and Gale, Julian and Ford, M. 2006. Implementation of a Z-matrix approach within the SIESTA periodic boudnary conditions code and its application to surface adsorption. Molecular Simulation 32 (8): 593-598.
Source Title
Molecular Simulation
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Department of Applied Chemistry
Division of Engineering, Science and Computing
Faculty of Science
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This is an electronic version of an article published in Hoft, R and Gale, Julian and Ford, M (2006) Implementation of a Z-matrix approach within the SIESTA periodic boundary conditions code and its application to surface adsorption, Molecular Simulation 32(8):593-598.

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<a href="http://www.informaworld.com/openurl?genre=article&id=doi:10.1080/08927020600900337">http://www.informaworld.com/openurl?genre=article&id=doi:10.1080/08927020600900337</a>

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