Laser ablation synthesis of arsenic–phosphide AsmPn clusters from As–P mixtures. Laser desorption ionisation with quadrupole ion trap time‐of‐flight mass spectrometry: The mass spectrometer as a synthesizer. (22nd April 2018)

• Record Type: Journal Article
• Authors: Kubáček, Pavel; Prokeš, Lubomír; Pamreddy, Annapurna; Peña‐Méndez, Eladia María; Conde, José Elias; Alberti, Milan; Havel, Josef
• Is Part Of: Rapid communications in mass spectrometry. Volume 32:Number 10(2018)
• Page Start: 789
• Page End: 800
• Publication Date: 2018-04-22
• Subjects: Mass spectrometry -- Periodicals; 543.65
• DOI: 10.1002/rcm.8106
• Languages: English
• ISSNs: 0951-4198

Abstract

Abstract : Rationale: Only a few arsenic phosphides are known. A high potential for the generation of new compounds is offered by Laser Ablation Synthesis (LAS) and when Laser Desorption Ionization (LDI) is coupled with simultaneous Time‐Of‐Flight Mass Spectrometry (TOFMS), immediate identification of the clusters can be achieved. Methods: LAS was used for the generation of arsenic phosphides via laser ablation of phosphorus–arsenic mixtures while quadrupole ion trap time‐of‐flight mass spectrometry (QIT‐TOFMS) was used to acquire the mass spectra. Results: Many new As m P n ± clusters (479 binary and 369 mono‐elemental) not yet described in the literature were generated in the gas phase and their stoichiometry determined. The likely structures for some of the observed clusters arbitrary selected (20) were computed by density functional theory (DFT) optimization. Conclusions: LAS is an advantageous approach for the generation of new As m P n clusters, while mass spectrometry was found to be an efficient technique for the determination of cluster stoichiometry. The results achieved might inspire the synthesis of new materials.