Original scientific paper

Mercuration of Some Aliphatic Aldehydes. The Crystal Structure of 2,2-Bis(chloromercuri)butyraldehyde

Branka Korpar-Čolig ; Laboratory of General and Inorg11nic Chemistry, Faculty of Science, University of Zagreb, P . 0 . Box 153, 41001 Zagreb, Yugoslavia
Zora Popović ; Laboratory of General and Inorg11nic Chemistry, Faculty of Science, University of Zagreb, P . 0 . Box 153, 41001 Zagreb, Yugoslavia
Milan Sikirica ; Laboratory of General and Inorg11nic Chemistry, Faculty of Science, University of Zagreb, P . 0 . Box 153, 41001 Zagreb, Yugoslavia

Abstract

Tris ( chloromercuri)acetaldehyde (1), 2,2-bis( chloromercuri)propionaldehyde
(II) and 2,2-bis(chloromercuri)butyraldehyde (III)
were obtained by mercuration of the corresponding aldehyde in an
aqueous mercury(II) chloride solution containing sodium acetate.
The mercurated aldehydes (II) and (III) are described for the first
time. The crystal structure of (III) was determined by means of
Patterson and Fourier syntheses based on threedimensional X-ray
diffractometer intensity data and refined by the full-matrix least-
squares method to an R value of 0.049. Crystals are orthorhombic,
space group Pna21 with z = 4 formula units in the unit cell of the
dimensions : a= 1114.6(6), b = 1121.3(5), c = 657.3(3) pm, Dots= 4.51and Deale = 4.38 Mg m-3• The structure consists of discrete moleculesof 2,2-bis(chloromercuri)butyraldehyde. The Hg-C bond lengthsare 216(2) and 209(2) pm. The Hg-C-Hg bond angle is 103(1) 0
and the C-Hg-Cl bond angles are 173(2)0 and 172(2)0
, respectively.

Keywords

Hrčak ID:

194139

URI

https://hrcak.srce.hr/194139

Publication date:

20.10.1984.

Visits: 603 *