The DOI matches its Crossref record.
NMR-Relaxation Mechanisms of O17 in Aqueous Solutions of Paramagnetic Cations and the Lifetime of Water Molecules in the First Coordination Sphere
Abstract
An investigation was made of the temperature and frequency dependence of T2 for O17 in aqueous solutions containing Mn2+, Fe2+, Co2+, Ni2+, and Cu2+. This represented an extension of the studies previously performed in this laboratory on these ions. Virtually all of the temperature effects predicted by the modified Bloch equations for a two-species system were verified experimentally. Rates of exchange of water molecules between the bulk of the solution and the first coordination sphere of the paramagnetic cations were determined for all the ions studied. Activation energies for exchange were measured and electronic T1's and coupling constants were determined in some cases. Evidence was found for a tetrahedral Co2+(H2O)4 species in aqueous solutions near 100°C. The data for cupric ion were interpreted in terms of six coordinated water molecules in a distorted octahedron, with a ratio of ∼105 existing for the axial-water-exchange rate over that of the equatorial waters. The rates of exchange were compared with other physical measurements and the nature of the bonding was considered.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
Palmer, A. G., Kroenke, C. D., & Patrick Loria, J. (2001) · Methods in Enzymology · doi:10.1016/s0076-6879(01)39315-1 · Cited by 938
Villaraza, A. J. L., Bumb, A., & Brechbiel, M. W. (2010) · Chemical Reviews · doi:10.1021/cr900232t · Cited by 632
Lanthanide induced shifts and relaxation rate enhancements
Peters, J. A., Huskens, J., & Raber, D. J. (1996) · Progress in Nuclear Magnetic Resonance Spectroscopy · doi:10.1016/0079-6565(95)01026-2 · Cited by 508
Large Aqueous Aluminum Hydroxide Molecules
Casey, W. H. (2006) · Chemical Reviews · doi:10.1021/cr040095d · Cited by 414
Gillis, P., & Koenig, S. H. (1987) · Magnetic Resonance in Medicine · doi:10.1002/mrm.1910050404 · Cited by 353
Metadata
- Authors
- Swift, T. J., & Connick, R. E.
- Venue
- The Journal of Chemical Physics
- Publisher
- AIP Publishing
- Published
- 1962-07-15
- Volume
- 37
- Issue
- 2
- Pages
- 307-320
- ISSN
- 0021-9606 (ISSN-L)
- 1089-7690
- OpenAlex
- W2074490799
- Cited by
- 1,292
- References
- 0
- FWCI
- 8.12
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: NMR-Relaxation Mechanisms of O17 in Aqueous Solutions of Paramagnetic Cations and the Lifetime of Water Molecules in the First Coordination Sphere. https://app.cochat.ai/papers/10.1063/1.1701321
- The paper
- Swift, T. J., & Connick, R. E. (1962). NMR-Relaxation Mechanisms of O17 in Aqueous Solutions of Paramagnetic Cations and the Lifetime of Water Molecules in the First Coordination Sphere. The Journal of Chemical Physics. https://doi.org/10.1063/1.1701321
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
