Issue 0, 1970

The crystal structures of the acid salts of some dibasic acids. Part II. Potassium hydrogen malonate: two X-ray studies

Abstract

Potassium hydrogen malonate crystallises in the monoclinic space group C2/m with a= 9·473, b= 11·559, c= 4·726 Å, β= 91·6°, Z= 4. Two independent X-ray analyses are reported, each based on three-dimensional, diffractometer data. They lead to closely similar sets of co-ordinates and vibrational parameters.

The hydrogen-malonate residues have two-fold crystallographic symmetry, and are linked into infinite chains by ‘very short’ hydrogen bonds lying across centres of inversion. The atoms of each carboxy-group [C–C 1·516(4), C–O(H) 1·293(4), and C[double bond, length half m-dash]O 1·223(4)Å] are coplanar with the methylenic carbon atom. The angle between the carboxy-planes, in each half of the residue, is ca. 10°.

Article information

Article type
Paper

J. Chem. Soc. A, 1970, 1919-1923

The crystal structures of the acid salts of some dibasic acids. Part II. Potassium hydrogen malonate: two X-ray studies

J. G. Sime, J. C. Speakman and R. Parthasarathy, J. Chem. Soc. A, 1970, 1919 DOI: 10.1039/J19700001919

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