Issue 57, 2005

Halometallate and halide ions: nucleophiles in competition for hydrogen bond and halogen bond formation in halopyridinium salts of mixed halide–halometallate anions

Abstract

The compounds (4-ClpyH)3[PtCl6]Cl (1), (4-XpyH)3[FeCl4]2Cl [X = Cl (2); X = Br (3)] and (3-IpyH)2[AuBr3X]X (X = Cl/Br) (4) [n-XPyH = n-halopyridinium] have been synthesised and crystallographically characterised. Their structures illustrate two potential problems of preparing crystals of halometallate salts using aqueous HCl, but provide an opportunity to examine the competition between halometallate [MXq]p (q = 4, 6; p = 1, 2) and halide X nucleophiles for both hydrogen bond (N–H⋯X) and halogen bond (C–X⋯X′) formation.

Graphical abstract: Halometallate and halide ions: nucleophiles in competition for hydrogen bond and halogen bond formation in halopyridinium salts of mixed halide–halometallate anions

Supplementary files

Article information

Article type
Paper
Submitted
16 Mar 2005
Accepted
10 May 2005
First published
18 May 2005

CrystEngComm, 2005,7, 350-354

Halometallate and halide ions: nucleophiles in competition for hydrogen bond and halogen bond formation in halopyridinium salts of mixed halide–halometallate anions

F. Zordan, S. L. Purver, H. Adams and L. Brammer, CrystEngComm, 2005, 7, 350 DOI: 10.1039/B503858H

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