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2,2':6',2''-Terpyridine Switches From Tridentate to Monodentate Coordination in a Gold(iii) Terpy Complex Upon Reaction With Sodium Azide

2,2':6',2''-Terpyridine Switches From Tridentate to Monodentate Coordination in a Gold(iii) Terpy Complex Upon Reaction With Sodium Azide

Kun Peng, Alexandra Friedrich, Ulrich Schatzschneider

Chem Commun (Camb). 2019 Jul 18;55(56):8142-8145.

PMID: 31240290

Abstract:

Reaction of [AuCl(terpy-κ3-N1,1',1'')]Cl2 with an excess of sodium azide did not result in the expected exchange of the chlorido by an azido ligand to give [Au(N3)(terpy-κ3-N1,1',1'')]2+. Instead, X-ray structure analysis showed that the isolated product is [Au(N3)3(terpy-κ1-N1)], 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(N3)2(terpy-κ2-N1,1')]+. The stability of the tris(azido)gold(iii) moiety relative to other possible species was also confirmed by DFT calculations.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
IAR42410409	Sodium taurodeoxycholate-2,2,3,3,11,11-d6 solution			Price

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