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  • Synthesis and characterization of Ag( i ) and Au( i ) complexes with macrocyclic hybrid amine N-heterocyclic carbene ligands
Title: Synthesis and characterization of Ag( i ) and Au( i ) complexes with macrocyclic hybrid amine N-heterocyclic carbene ligands
Four macrocyclic hybrid salts with different numbers of benzimidazolium and amine units, [H 2 L][PF 6 ] 2 (L = L 1 , L 2 , L 3 ) and [H 4 L 4 ][PF 6 ] 4 , have been employed as the heterocyclic carbene (NHC) precursors toward new Ag( i )– and Au( i )–NHC complexes. Three trinuclear and one tetranuclear Ag( i ) complexes 1–4 have been obtained from the reactions of the NHC precursors and Ag 2 O in acetonitrile. Four dinuclear Au( i )–NHC complexes 5–8 have been prepared by reacting the NHC precursors and AuCl(SMe 2 ) in the presence of NaOAc in DMF. The molecular structures of all the complexes are established by single-crystal X-ray diffraction studies. The metal ions in the Ag( i ) complexes 1–3 and the Au( i ) complexes 5–7 are coordinated with two macrocyclic NHC ligands to form a sandwiched structure. In contrast, a trinuclear Ag 3 core is located in the cavity of one macrocyclic ligand in [Ag 3 (L 4 )][PF 6 ] 3 ( 4 ). The photoluminescence properties of Au( i ) complexes 5–8 have also been investigated.  more » « less
Award ID(s):
1633870
NSF-PAR ID:
10062483
Author(s) / Creator(s):
; ; ; ; ;
Date Published:
Journal Name:
New Journal of Chemistry
Volume:
42
Issue:
6
ISSN:
1144-0546
Page Range / eLocation ID:
4700 to 4713
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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