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Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex

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Published on: July 27, 2022

Eight-electron Pt/Cu superatom encapsulating three "electron-donating" hydrides.

Ayisha He¹, Dongjie Zuo¹, Guangmei Jiang¹

¹College of Energy Materials and Chemistry, Inner Mongolia University, Hohhot 010021, China.

Science Advances

|January 8, 2025

Summary

This summary is machine-generated.

This study introduces a novel platinum-copper nanocluster containing three electron-donating hydrides. This discovery advances understanding of metal nanocluster electronic properties and potential applications.

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Area of Science:

Inorganic Chemistry
Materials Science
Nanotechnology

Background:

Metal hydrides are typically electron-withdrawing.
Recent research shows electron-donating hydrides can tune metal nanocluster properties.
Existing clusters are limited to one or two such hydrides, with no models for three.

Purpose of the Study:

To present a precise structure of a superatomic nanocluster with three interstitial electron-donating hydrides.
To investigate the electronic contributions of these hydrides within the cluster.

Main Methods:

Synthesis and structural characterization of the PtH3Cu23 nanocluster.
Density functional theory (DFT) calculations to analyze electronic structure and hydride contributions.

Main Results:

A structurally precise superatomic nanocluster, PtH3Cu23, containing three interstitial electron-donating hydrides was synthesized.
The cluster features a PtCu12 core with three hydrides in a distorted anticuboctahedral arrangement.
DFT calculations confirmed that the three hydrides contribute valence electrons to an eight-electron superatom count.

Conclusions:

The synthesized PtH3Cu23 nanocluster represents a rare example of a platinum-included copper-hydride superatom.
This work demonstrates the successful encapsulation of three electron-donating hydrides, expanding the known chemistry of metal nanoclusters.