The DOI matches its Crossref record; 30 of the 30 references it cites were found in a registry or an index.
Topological molecular nanocarbons: All-benzene catenane and trefoil knot
Abstract
Carbon catenation: Preparing interlocked rings and knots at the molecular scale traditionally relies on preorientation of the building blocks by nitrogen or oxygen substituents. Segawa et al. devised a distinct strategy to synthesize catenane and trefoil structures composed exclusively of carbon and hydrogen (see the Perspective by Van Raden and Jasti). They linked phenyl rings end to end into macrocycles that met in the middle at a silicon center. Excision of the silicon with fluoride then yielded the interlocked products. Science , this issue p. 272 ; see also p. 216
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Cites
Density-functional thermochemistry. III. The role of exact exchange
Becke, A. D. (1993) · The Journal of Chemical Physics · doi:10.1063/1.464913 · Cited by 103,767
Lee, C., Yang, W., & Parr, R. G. (1988) · Physical Review B · doi:10.1103/physrevb.37.785 · Cited by 100,874
Sheldrick, G. M. (2008) · Acta Crystallographica Section A Foundations of Crystallography · doi:10.1107/s0108767307043930 · Cited by 87,804
Electric Field Effect in Atomically Thin Carbon Films
Novoselov, K. S., Geim, A. K., Morozov, S. V., Jiang, D., Zhang, Y., Dubonos, S. V., Grigorieva, I. V., & Firsov, A. A. (2004) · Science · doi:10.1126/science.1102896 · Cited by 66,834
Grimme, S., Antony, J., Ehrlich, S., & Krieg, H. (2010) · The Journal of Chemical Physics · doi:10.1063/1.3382344 · Cited by 59,686
Helical microtubules of graphitic carbon
Iijima, S. (1991) · Nature · doi:10.1038/354056a0 · Cited by 43,098
OLEX2 : a complete structure solution, refinement and analysis program
Dolomanov, O. V., Bourhis, L. J., Gildea, R. J., Howard, J. A. K., & Puschmann, H. (2009) · Journal of Applied Crystallography · doi:10.1107/s0021889808042726 · Cited by 32,811
Canonical dynamics: Equilibrium phase-space distributions
Hoover, W. G. (1985) · Physical Review A · doi:10.1103/physreva.31.1695 · Cited by 23,465
A unified formulation of the constant temperature molecular dynamics methods
Nosé, S. (1984) · The Journal of Chemical Physics · doi:10.1063/1.447334 · Cited by 19,152
Kroto, H. W., Heath, J. R., O’Brien, S. C., Curl, R. F., & Smalley, R. E. (1985) · Nature · doi:10.1038/318162a0 · Cited by 16,083
Metadata
- Authors
- Segawa, Y., Kuwayama, M., Hijikata, Y., Fushimi, M., Nishihara, T., Pirillo, J., Shirasaki, J., Kubota, N., & Itami, K.
- Venue
- Science
- Published
- 2019-07-19
- Volume
- 365
- Issue
- 6450
- Pages
- 272-276
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2958839837
- Cited by
- 308
- References
- 30
- FWCI
- 14.28
- Type
- journal article
- Language
- en
- Open access
- closed
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- Segawa, Y., Kuwayama, M., Hijikata, Y., Fushimi, M., Nishihara, T., Pirillo, J., Shirasaki, J., Kubota, N., & Itami, K. (2019). Topological molecular nanocarbons: All-benzene catenane and trefoil knot. Science. https://doi.org/10.1126/science.aav5021
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