The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Self-recognition in helicate self-assembly: spontaneous formation of helical metal complexes from mixtures of ligands and metal ions.
Open accessAbstract
On treatment with copper(I) ions, mixtures of the [oligo(2,2')-bipyridine] strands 2-5 yield spontaneously the double helicates 2H(2)-2H(5) without significant crossover. Similarly, when a mixture of the two tris-bypyridine ligands 1 and 3a (containing different substitutions) is allowed to react with copper(I) and nickel(II) ions, only the double helicate 2H(3a) and the triple helicate 3H(1) are formed. Thus, these systems undergo self-assembly of helicates with self-recognition. The process represents a self/nonself-discrimination involving the preferential binding of like metal ions by like ligand strands in a mixture to selectively assemble into the corresponding helicates. In a broader perspective, these results point to a change in paradigm from pure compounds to instructed mixtures--that is from seeking chemical purity to designing programmed systems composed of mixtures of instructed components capable of spontaneously forming well--defined superstructures through self-processes.
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
Cites
Encoded combinatorial chemistry.
Brenner, S., & Lerner, R. A. (1992) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.89.12.5381 · Cited by 1,014
Lehn, J. M., Rigault, A., Siegel, J., Harrowfield, J., Chevrier, B., & Moras, D. (1987) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.84.9.2565 · Cited by 852
Self-citation
Cited by
Self‐Assembly in Natural and Unnatural Systems
Philp, D., & Stoddart, J. F. (1996) · Angewandte Chemie International Edition in English · doi:10.1002/anie.199611541 · Cited by 2,115
Yashima, E., Ousaka, N., Taura, D., Shimomura, K., Ikai, T., & Maeda, K. (2016) · Chemical Reviews · doi:10.1021/acs.chemrev.6b00354 · Cited by 2,004
Beuerle, F., & Gole, B. (2018) · Angewandte Chemie International Edition · doi:10.1002/anie.201710190 · Cited by 528
Selbstorganisation in natürlichen und in nichtnatürlichen Systemen
Philp, D., & Stoddart, J. F. (1996) · Angewandte Chemie · doi:10.1002/ange.19961081105 · Cited by 466
Functional behaviour from controlled self-assembly: challenges and prospects
Ward, M. D., & Raithby, P. R. (2013) · Chem. Soc. Rev. · doi:10.1039/c2cs35123d · Cited by 444
Metadata
- Authors
- Kramer, R., Lehn, J. M., & Marquis-Rigault, A.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 1993-06-15
- Volume
- 90
- Issue
- 12
- Pages
- 5394-5398
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2091383063
- Cited by
- 549
- References
- 2
- FWCI
- 8.49
- Type
- journal article
- Language
- en
- Open access
- green
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: Self-recognition in helicate self-assembly: spontaneous formation of helical metal complexes from mixtures of ligands and metal ions. https://app.cochat.ai/papers/10.1073/pnas.90.12.5394
- The paper
- Kramer, R., Lehn, J. M., & Marquis-Rigault, A. (1993). Self-recognition in helicate self-assembly: spontaneous formation of helical metal complexes from mixtures of ligands and metal ions. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.90.12.5394
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.