Issue 12, 1981
From the journal:

Journal of the Chemical Society, Perkin Transactions 2

Crystal and molecular structure of a photoisomer of an oxodipyrromethene: the E-isomer of 3,4-dimethyl-2,2′-pyrromethen-5(1H)-one

Akira Hori,   Stefano Mangani,   Gerard Pèpe,   Edgar F. Meyer, jun.,   David L. Cullen,   Heinz Falk  and  Karl Grubmayr  

Abstract

The structure of the E-isomer of an oxodipyrromethene, 3,4-dimethyl-2,2′-pyrromethen-5(1H)-one, C11H12N2O, has been determined. This was obtained by photoisomerization from the Z-isomer. It crystallizes in the monoclinic space group P21/a with a= 10.479(3), b= 8.643(2), c= 11.926(2)Å, β= 114.07(1)°, Z= 4. The structure was solved by direct methods and refined by full-matrix least-squares to an R factor of 0.064. The molecule is in an anticlinal conformation with a dihedral angle of 49.8° about the methine single bond. Each oxygen atom is hydrogen-bonded to two nitrogen atoms which are located on two different molecules. Bond lengths and angles are similar to those found in the Z-isomer.

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/P29810001525
Article type
Paper

J. Chem. Soc., Perkin Trans. 2, 1981, 1525-1528

Permissions

Request permissions

Crystal and molecular structure of a photoisomer of an oxodipyrromethene: the E-isomer of 3,4-dimethyl-2,2′-pyrromethen-5(1H)-one

A. Hori, S. Mangani, G. Pèpe, E. F. Meyer, D. L. Cullen, H. Falk and K. Grubmayr, J. Chem. Soc., Perkin Trans. 2, 1981, 1525 DOI: 10.1039/P29810001525

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.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements