dc.contributor.author | Theocharis, Charis R. | en |
dc.contributor.author | Jones, W. | en |
dc.creator | Theocharis, Charis R. | en |
dc.creator | Jones, W. | en |
dc.date.accessioned | 2019-11-21T06:23:14Z | |
dc.date.available | 2019-11-21T06:23:14Z | |
dc.date.issued | 1985 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/56220 | |
dc.description.abstract | The structure of the 9-cyanoanthracene trans dimer (9-CNAD) has been solved by direct methods [P1, a = 10.146(1) Å, b = 17.785(1) Å, c = 11.501(1) Å, α = 92.95(1)°, β = 95.59(1)°, γ = 89.82(1)°, Z = 4]. No evidence for X-ray-induced monomerisation was observed, although a 20% fading of the crystal occurred during data collection. On heating a 9-CNAD crystal to 420 K, a yellow single crystal (9-CNADY) was obtained. Its crystal structure [P1, a = 10.217(2) Å, b = 10.235(2) Å, c = 11.594(2) Å, α = 95.20(2)°, β = 90.37(2)°, γ = 120.13(1)°, Z = 2] was solved to show that the sample was still dimeric to an extent of 92%. This single-crystal → single-crystal transition is topotactic, and monomerisation occurs homogeneously. Further heating leads to a complete, heterogeneous and topotactic monomerisation. The monomeric component in 9-CNADY was not located. Final R was 0.0436 for 9-CNAD and 0.1015 for 9-CNADY. | en |
dc.source | Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0012383879&doi=10.1039%2fF19858100857&partnerID=40&md5=1e5f1c4014ecadaef08bccde11cd803a | |
dc.title | Study of the crystal and molecular structure of the 9-cyanoanthracene trans dimer and of its monomerisation | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1039/F19858100857 | |
dc.description.volume | 81 | |
dc.description.issue | 4 | |
dc.description.startingpage | 857 | |
dc.description.endingpage | 874 | |
dc.author.faculty | 002 Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences | |
dc.author.department | Τμήμα Χημείας / Department of Chemistry | |
dc.type.uhtype | Article | en |
dc.description.notes | <p>Cited By :11</p> | en |
dc.contributor.orcid | Theocharis, Charis R. [0000-0002-1669-4954] | |
dc.gnosis.orcid | 0000-0002-1669-4954 | |