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Dissociative electron attachment to gold(i) based compounds: 4,5-dichloro – 1,3-diethyl – imidazolylidene trifluoromethyl gold(i)

Mason, Nigel, Clark, Ewan R., Pintea, Maria, Luxord, Thomas, Samanta, Kushal, Peiro-Franch, Anna, Glessi, Cristiano, Smidtke, Inga Lena (2023) Dissociative electron attachment to gold(i) based compounds: 4,5-dichloro – 1,3-diethyl – imidazolylidene trifluoromethyl gold(i). Frontiers in Chemistry: Physical Chemistry and Chemical Physics, 11 . Article Number 1028008. E-ISSN 2296-2646. (doi:10.3389/fchem.2023.1028008) (KAR id:96739)

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Abstract

With the use of proton-NMR and powder XRD (XRPD) studies, the suitability of specific Au FEBID precursors has been investigated to low electron energy, structure, excited states, resonances, structural crystal modifications, flexibility, and vaporization level. Uniquely designed precursor to meet the needs of focused electron beam induced deposition (FEBID) at the nanostructure level, the 4,5-dichloro – 1,3-diethyl – imidazolylidene trifluoromethyl gold(i) is a compound that proves its capability to create high purity structures, and its growing importance between other AuImx and AuClnB (where x, n are the number of radicals, B = CH, CH3 or Br) compounds in the radiation cancer therapy increases the efforts to design more suitable bonds in processes of SEM deposition and in gas-phase studies. The investigation done to its powder shape using the XRPD XPERT3 Panalytical diffractometer based on CoKα lines shows changes to its structure with temperature, level of vacuum, and light; the sensitivity of this compound makes it highly interesting to radiation research in particular. Used for FEBID, through its smaller number of C, H, and O atoms has lower levels of C contamination in the structures and on the surface, but it replaces these bonds with C – Cl and C – N bonds that have a lower bond breaking energy but still needing an extra purification step in the deposition process, whether is H2O, O2 or H jets.

Item Type: Article
DOI/Identification number: 10.3389/fchem.2023.1028008
Uncontrolled keywords: gold imidazolyl compounds, dissociative electron attachment, gold precursors, XRD, focused electron beam deposition
Subjects: Q Science > QC Physics > QC176 Solid state physics
Q Science > QD Chemistry > QD478 Solid State Chemistry
Q Science > QC Physics > QC176.8.N35 Nanoscience, nanotechnology
Q Science > QD Chemistry > QD473 Physical properties in relation to structure
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Divisions > Division of Natural Sciences > Chemistry and Forensics
Funders: European Union (https://ror.org/019w4f821)
Depositing User: Maria Pintea
Date Deposited: 05 Sep 2022 07:55 UTC
Last Modified: 10 Jan 2024 05:42 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/96739 (The current URI for this page, for reference purposes)

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