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- W2890621786 abstract "Abstract We present a generalization of the transition state search using chemical dynamics simulations (TSSCDS) methodology (discussed in a previous study) which allows the topographical characterization of intermolecular potential energy surfaces (IPES) for non‐covalently bound complexes (vdW‐TSSCDS). Starting from a single random input geometry, we show that vdW‐TSSCDS is able to globally and automatically locate stationary points of an IPES, even in limiting cases such as extremely flat regions or nontrivial topologies (eg, bifurcation points). The basic idea is the expression of the connectivity matrix in block structure, where diagonal blocks correspond to the isolated fragments and off‐diagonal blocks provide the intermolecular connectivity. To this end, we introduce a new definition of bound or not, in a non‐covalent sense, utilizing an extra set of van der Waals distances, which encompasses all kinds of non‐covalent distances. To discuss the use of the vdW‐TSSCDS method, we present a series of 2‐body van der Waals systems, namely, Ar‐Benzene (3D), N 2 ‐Benzene (6D) and H 2 O‐Benzene (9D). Finally, we further illustrate its capabilities by presenting some applications for n‐body problems (n > 2), (H 2 O) 2 ‐Benzene (12D) and (H 2 O) 3 ‐Benzene (21D), as well as to a reactive, fully‐flexible, system (Benzene‐NO 2 ) + (39D) in which the simultaneous breaking/formation of both covalent and non‐covalent interactions takes place." @default.
- W2890621786 created "2018-09-27" @default.
- W2890621786 creator A5010818136 @default.
- W2890621786 creator A5056471120 @default.
- W2890621786 creator A5059366403 @default.
- W2890621786 creator A5082739771 @default.
- W2890621786 date "2019-07-17" @default.
- W2890621786 modified "2023-10-18" @default.
- W2890621786 title "vdW‐TSSCDS—An automated and global procedure for the computation of stationary points on intermolecular potential energy surfaces" @default.
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