Thermally induced solid-state Z–E isomerisation in bi(cyclopentenylidene) compounds. X-Ray crystal structure of (Z)-2,2′-dioxo-3,3′,4,4′,5α,5′β-hexa-phenyl-1,1′-bi(cyclopentenylidene)

Krishnamurthi Vyas; Hattikudur Manohar

doi:10.1039/P29900001177

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

Thermally induced solid-state Z–E isomerisation in bi(cyclopentenylidene) compounds. X-Ray crystal structure of (Z)-2,2′-dioxo-3,3′,4,4′,5α,5′β-hexa-phenyl-1,1′-bi(cyclopentenylidene)

Krishnamurthi Vyas and Hattikudur Manohar

Abstract

The crystal and molecular structure of the title compound has been determined; it crystallises as a methanol solvate in the space group P2₁/n with a= 11.647(2), b= 18.583(2), c= 16.113(2)Å, β= 92.11(1)° and Z= 4. The structure has been solved by direct methods and refined to a final R value of 0.090. The molecular structure is different from that proposed earlier on the basis of spectral data. The central bond connecting the two five-membered rings displays pure double-bond character due to lack of conjugation. This is responsible for the thermal stability of the compound and the relatively high temperature for the isomerisation. One of the two five-membered rings assumes an envelope conformation and the other a half-chair. The solvent methanol molecule is disordered.

Download options Please wait...

Article information

DOI: https://doi.org/10.1039/P29900001177
Article type: Paper

Download Citation

J. Chem. Soc., Perkin Trans. 2, 1990, 1177-1180

Permissions

Request permissions

Thermally induced solid-state Z–E isomerisation in bi(cyclopentenylidene) compounds. X-Ray crystal structure of (Z)-2,2′-dioxo-3,3′,4,4′,5α,5′β-hexa-phenyl-1,1′-bi(cyclopentenylidene)

K. Vyas and H. Manohar, J. Chem. Soc., Perkin Trans. 2, 1990, 1177 DOI: 10.1039/P29900001177

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Fetching data from CrossRef.
This may take some time to load.

Journal of the Chemical Society, Perkin Transactions 2

Thermally induced solid-state Z–E isomerisation in bi(cyclopentenylidene) compounds. X-Ray crystal structure of (Z)-2,2′-dioxo-3,3′,4,4′,5α,5′β-hexa-phenyl-1,1′-bi(cyclopentenylidene)

Abstract

Article information

Download Citation

Permissions

Thermally induced solid-state Z–E isomerisation in bi(cyclopentenylidene) compounds. X-Ray crystal structure of (Z)-2,2′-dioxo-3,3′,4,4′,5α,5′β-hexa-phenyl-1,1′-bi(cyclopentenylidene)

Search articles by author

Spotlight

Advertisements