Isoelectronic IrC₃^–, PtC₃, and AuC₃⁺ Clusters Featuring the Structural and Bonding Resemblance to OC₃

Abstract

The IrC3 – and PtC3 – anions generated by laser vaporization were identified and characterized by gas-phase photoelectron spectroscopy and quantum-chemical calculations. The straight-chain structures with an MCCC (M = metal; C = carbon) connectivity are found for the isoelectronic IrC3 –, PtC3, and AuC3 + clusters. Further elaborate analyses manifest the strikingly structural and bonding similarities between MC3 –/0/+ clusters and OC3 revealed. This finding has broadened the notion of autogenic isolobality to the gas-phase clusters that contain Ir–, Pt, Au+, and C centers.

Structural and Chemical Bonding Properties of AuS2H0/–: A Photoelectron Velocity-Map Imaging Spectroscopic and Theoretical Study

“…The significant covalency of Au–S bonds in [SAuS] − and [HSAuSH] − promotes us to investigate the mix-liganded sulphydryl gold sulfide, [SAuSH] − , which has not been explored in the gas phase yet. The mass-selected photoelectron velocity map imaging (VMI) spectroscopy in conjunction with theoretical calculation is a powerful technique for understanding both the geometries and electronic structures of the clusters in the gas phase. − Herein, we present a VMI spectroscopic and theoretical study on AuS 2 H – . The comprehensive comparison between the experiment and theoretical calculations confirms the mix-ligand structure and covalent multiple-bonding pattern for the ground state of AuS 2 H – .…”