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Cited by 397

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First Solvation Shell of the Cu(II) Aqua Ion: Evidence for Fivefold Coordination

Open access
Pasquarello, Alfredo, Petri, Ingrid, Salmon, Philip S., Parisel, Olivier, Car, Roberto, Tóth, Éva, Powell, D. Hugh, Fischer, Henry E., Helm, Lothar, Merbach, André E.·2001·Science

Abstract

We determined the structure of the hydrated Cu(II) complex by both neutron diffraction and first-principles molecular dynamics. In contrast with the generally accepted picture, which assumes an octahedrally solvated Cu(II) ion, our experimental and theoretical results favor fivefold coordination. The simulation reveals that the solvated complex undergoes frequent transformations between square pyramidal and trigonal bipyramidal configurations. We argue that this picture is also consistent with experimental data obtained previously by visible near-infrared absorption, x-ray absorption near-edge structure, and nuclear magnetic resonance methods. The preference of the Cu(II) ion for fivefold instead of sixfold coordination, which occurs for other cations of comparable charge and size, results from a Jahn-Teller destabilization of the octahedral complex.

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Metadata

Authors
Pasquarello, A., Petri, I., Salmon, P. S., Parisel, O., Car, R., Tóth, E., Powell, D. H., Fischer, H. E., Helm, L., & Merbach, A. E.
Venue
Science
Published
2001-02-02
Volume
291
Issue
5505
Pages
856-859
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2024206386
Cited by
397
References
12
FWCI
16.03
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: First Solvation Shell of the Cu(II) Aqua Ion: Evidence for Fivefold Coordination. https://app.cochat.ai/papers/10.1126/science.291.5505.856
The paper
Pasquarello, A., Petri, I., Salmon, P. S., Parisel, O., Car, R., Tóth, E., Powell, D. H., Fischer, H. E., Helm, L., & Merbach, A. E. (2001). First Solvation Shell of the Cu(II) Aqua Ion: Evidence for Fivefold Coordination. Science. https://doi.org/10.1126/science.291.5505.856

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