This paper presents a deepening on the investigation of the Rh-Sn system of heterometallic carbonyl clusters. More specifically, we herein report the synthesis and isolation of the new [Rh7Sn4Cl10(CO)14]5􀀀 (1) compound and the atomically precise [Rh18Sn3Cl2(CO)33]4􀀀 (2) nanocluster, where the la. Cluster 1 can be obtained by reacting the [Rh7(CO)16]3􀀀 homometallic cluster with hydrated Sn(II) chloride, in acetone; conversely, cluster 2 derives from the previously known [Rh12Sn(CO)23Cl2]4􀀀 precursor after controlled addition of diluted sulphuric acid. Notably, only 2 has retained the recurrent Sn-centred icosahedral structural feature, while 1 shows a molecular structure based on two Rh4 tetrahedra joint by one vertex and stabilized by SnCl2 and [SnCl3]􀀀 fragments. Both species have been characterized by infrared (IR) analysis in solution, single-crystal X-ray diffraction and Electrospray Ionization Mass Spectrometry (ESI-MS).

Atomically precise rhodium nanoclusters: synthesis and characterization of the heterometallic [Rh18Sn3Cl2(CO)33]4􀀀 and [Rh7Sn4Cl10(CO)14]5􀀀 carbonyl compounds

Guido Bussoli;Cristiana Cesari;Cristina Femoni
;
Maria Carmela Iapalucci;Silvia Ruggieri;Cristina Tiozzo;Stefano Zacchini
2022

Abstract

This paper presents a deepening on the investigation of the Rh-Sn system of heterometallic carbonyl clusters. More specifically, we herein report the synthesis and isolation of the new [Rh7Sn4Cl10(CO)14]5􀀀 (1) compound and the atomically precise [Rh18Sn3Cl2(CO)33]4􀀀 (2) nanocluster, where the la. Cluster 1 can be obtained by reacting the [Rh7(CO)16]3􀀀 homometallic cluster with hydrated Sn(II) chloride, in acetone; conversely, cluster 2 derives from the previously known [Rh12Sn(CO)23Cl2]4􀀀 precursor after controlled addition of diluted sulphuric acid. Notably, only 2 has retained the recurrent Sn-centred icosahedral structural feature, while 1 shows a molecular structure based on two Rh4 tetrahedra joint by one vertex and stabilized by SnCl2 and [SnCl3]􀀀 fragments. Both species have been characterized by infrared (IR) analysis in solution, single-crystal X-ray diffraction and Electrospray Ionization Mass Spectrometry (ESI-MS).
Guido Bussoli, Cristiana Cesari, Cristina Femoni, Maria Carmela Iapalucci, Silvia Ruggieri, Cristina Tiozzo, Stefano Zacchini
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/900662
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