2,2′:6′,2′′-Terpyridine switches from tridentate to monodentate coordination in a gold(iii) terpy complex upon reaction with sodium azide

被引:11
作者
Peng, Kun [1 ]
Friedrich, Alexandra [1 ]
Schatzschneider, Ulrich [1 ]
机构
[1] Julius Maximilians Univ Wurzburg, Inst Anorgan Chem, D-97074 Wurzburg, Germany
关键词
SOLUTION DYNAMICS; ICLICK REACTION; CHEMISTRY; BEHAVIOR; LIGANDS;
D O I
10.1039/c9cc04113c
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Reaction of [AuCl(terpy-kappa(3)-N-1,N-1 ',N-1 '')]Cl-2 with an excess of sodium azide did not result in the expected exchange of the chlorido by an azido ligand to give [Au(N-3)(terpy-kappa(3)-N-1,N-1 ',N-1 '')](2+). Instead, X-ray structure analysis showed that the isolated product is [Au(N-3)(3)(terpy-kappa(1)-N-1)], in which the terpyridine ligand is in a very rare monodentate coordination mode. This is also the dominant species in solution, together with a minor amount of [Au(N-3)(2)(terpy-kappa(2)-N-1,N-1 ')](+). The stability of the tris(azido)gold(iii) moiety relative to other possible species was also confirmed by DFT calculations.
引用
收藏
页码:8142 / 8145
页数:4
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