The DOI matches its Crossref record.
The crystal structure of the 11Å natural tobermorite Ca2.25[Si3O7.5(OH)1.5] · 1H2O
Abstract
The crystal structure of a natural tobermorite from Zeilberg, Maroldsweisach, Germany (average formula Ca 2.2 5[Si 3 O 7.5 s(OH)1.5].-1H 2 O), is solved using the data obtained from an automatic diffractometer. For the structure determination only the sharp main reflexions are considered. The crystal data of the chosen subcell are: a′ = 5.586(4)Å, b′ = 3.696(2)Å, c = 22.779(7)Å, S.G Imm 2, V = 470.25Å 3, Dx = 2.39 g/cm 3, Dcxp = 2.43 g/cm 3, and Z = 2. The disordered superposed structure is refined to a weighted R-value of 0.085. From the average structure the superposed chains are resolved and the tobermorite structure is then developed. One of the possible ordered tobermorite structures is monoclinic, space group P2l, with the unit cell dimensions: a m = 6.69 Å, b m = 7.39 Å, c m = 22.779Å, and y = 123.49°. The tobermorite has infinite Si 3(O/OH)9 chains running parallel b. The calcium atoms are coordinated by seven oxygen atoms.
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
Structure of Calcium Silicate Hydrate (C‐S‐H): Near‐, Mid‐, and Far‐Infrared Spectroscopy
Yu, P., Kirkpatrick, R. J., Poe, B., McMillan, P. F., & Cong, X. (1999) · Journal of the American Ceramic Society · doi:10.1111/j.1151-2916.1999.tb01826.x · Cited by 1,640
Richardson, I. G. (2004) · Cement and Concrete Research · doi:10.1016/j.cemconres.2004.05.034 · Cited by 1,082
29Si MAS NMR study of the structure of calcium silicate hydrate
Cong, X., & Kirkpatrick, R. J. (1996) · Advanced Cement Based Materials · doi:10.1016/s1065-7355(96)90046-2 · Cited by 678
Andersen, M. D., Jakobsen, H. J., & Skibsted, J. (2003) · Inorganic Chemistry · doi:10.1021/ic020607b · Cited by 434
27 Al and 29 Si Solid-State NMR Characterization of Calcium-Aluminosilicate-Hydrate
Pardal, X., Brunet, F., Charpentier, T., Pochard, I., & Nonat, A. (2012) · Inorganic Chemistry · doi:10.1021/ic202124x · Cited by 328
Metadata
- Venue
- Zeitschrift für Kristallographie - Crystalline Materials
- Publisher
- Walter de Gruyter GmbH
- Published
- 1981-02-01
- Volume
- 154
- Issue
- 3-4
- Pages
- 189-198
- ISSN
- 2194-4946 (ISSN-L)
- 2196-7105
- OpenAlex
- W2322107805
- Cited by
- 329
- References
- 0
- FWCI
- 0.45
- 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: The crystal structure of the 11Å natural tobermorite Ca2.25[Si3O7.5(OH)1.5] · 1H2O. https://app.cochat.ai/papers/10.1524/zkri.1981.154.3-4.189
- The paper
- The crystal structure of the 11Å natural tobermorite Ca2.25[Si3O7.5(OH)1.5] · 1H2O. (1981). Zeitschrift für Kristallographie - Crystalline Materials. https://doi.org/10.1524/zkri.1981.154.3-4.189
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.
