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- Title
Heterometallic Coinage Metal Acetylenediide Clusters Showing Tailored Thermochromic Luminescence.
- Authors
Pei, Xiao‐Li; Guan, Zong‐Jie; Nan, Zi‐Ang; Wang, Quan‐Ming
- Abstract
Acetelyenediide (C22−) species have been encapsulated in bimetallic and trimetallic clusters: [(AuL)6Ag7(C≡C)3](BF4)7 (2) and [(AuL)6AgCu6(C≡C)3](BF4)7 (3), L=phenylbis(2‐pyridyl)phosphine (PPhpy2). Single‐crystal X‐ray diffraction analysis revealed that they are isostructural and six silver atoms in 2 are replaced with copper in 3. Both clusters have a trefoil skeleton, which can be viewed as three trigonal bipyramidal (LAu‐C≡C‐AuL)M2Ag (M=Ag/Cu) motifs sharing a common silver atom. TDDFT calculations showed Cu‐doping significantly increases the energy level of (C2‐Cu)‐involved occupied orbital, thus inducing interesting transition coupling of dual‐emission at low temperature. This work not only provides a strategy for constructing heterometallic clusters, but also shows the prospect for pursuing novel thermochromic luminescent materials by incorporating multi‐congeneric metal components.
- Subjects
METAL clusters; COINAGE; LUMINESCENCE; LOW temperatures; X-ray diffraction
- Publication
Angewandte Chemie, 2021, Vol 133, Issue 26, p14502
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.202104391