In:
Angewandte Chemie, Wiley, Vol. 131, No. 35 ( 2019-08-26), p. 12408-12413
Abstract:
The hardness of oxo ions (O 2− ) means that coinage‐metal (Cu, Ag, Au) clusters supported by oxo ions (O 2− ) are rare. Herein, a novel μ 4 ‐oxo supported all‐alkynyl‐protected silver(I)–copper(I) nanocluster [Ag 74− x Cu x O 12 (PhC≡C) 50 ] ( NC‐1 , avg. x =37.9) is characterized. NC‐1 is the highest nuclearity silver–copper heterometallic cluster and contains an unprecedented twelve interstitial μ 4 ‐oxo ions. The oxo ions originate from the reduction of nitrate ions by NaBH 4 . The oxo ions induce the hierarchical aggregation of Cu I and Ag I ions in the cluster, forming the unique regioselective distribution of two different metal ions. The anisotropic ligand coverage on the surface is caused by the jigsaw‐puzzle‐like cluster packing incorporating rare intermolecular C−H⋅⋅⋅metal agostic interactions and solvent molecules. This work not only reveals a new category of high‐nuclearity coinage‐metal clusters but shows the special clustering effect of oxo ions in the assembly of coinage‐metal clusters.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v131.35
DOI:
10.1002/ange.201906538
Language:
English
Publisher:
Wiley
Publication Date:
2019
detail.hit.zdb_id:
505868-5
detail.hit.zdb_id:
506609-8
detail.hit.zdb_id:
514305-6
detail.hit.zdb_id:
505872-7
detail.hit.zdb_id:
1479266-7
detail.hit.zdb_id:
505867-3
detail.hit.zdb_id:
506259-7
Permalink