Document Type
Article
Journal/Book Title
Nature Communications
Publication Date
10-20-2020
Publisher
Nature Publishing Group
Award Number
NSF, Division of Chemistry (CHE) 1664379
Funder
NSF, Division of Chemistry (CHE)
Volume
11
Issue
1
First Page
1
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Last Page
8
Abstract
Sandwich-type clusters with the planar fragment containing a heterometallic sheet have remained elusive. In this work, we introduce the [K(2,2,2-crypt)]4{(Ge9)2[η6-Ge(PdPPh3)3]} complex that contains a heterometallic sandwich fragment. The title compound is structurally characterized by means of single-crystal X-ray diffraction, which reveals the presence of an unusual heteroatomic metal planar fragment Ge@Pd3. The planar fragment contains a rare formal zerovalent germanium core and a peculiar bonding mode of sp2-Ge@(PdPPh3)3 trigonal planar structure, whereas the nonagermanide fragments act as capping ligands. The chemical bonding pattern of the planar fragment consists of three 2c-2e Pd-Ge σ-bonds attaching Pd atoms to the core Ge atom, while the binding between the planar fragment and the aromatic Ge9 ligands is provided by six 2c-2e Pd-Ge σ-bonds and two delocalized 4c-2e σ-bonds. The synthesized cluster represents a rare example of a sandwich compound with the heteroatomic metal planar fragment and inorganic aromatic capping ligands.
Recommended Citation
Xu, HL., Tkachenko, N.V., Wang, ZC. et al. A sandwich-type cluster containing Ge@Pd3 planar fragment flanked by aromatic nonagermanide caps. Nat Commun 11, 5286 (2020). https://doi.org/10.1038/s41467-020-19079-z
