Collision-Induced Dissociation of Undecagold Clusters Protected by Mixed Ligands [Au(11)(PPh(3))(8)X(2)](+) (X = Cl, C≡CPh)

[Image: see text] We herein investigated collision-induced dissociation (CID) processes of undecagold clusters protected by mixed ligands [Au(11)(PPh(3))(8)X(2)](+) (X = Cl, C≡CPh) using mass spectrometry and density functional theory calculations. The results showed that the CID produced fragment i...

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Autores principales: Tomihara, Ryohei, Hirata, Keisuke, Yamamoto, Hiroki, Takano, Shinjiro, Koyasu, Kiichirou, Tsukuda, Tatsuya
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2018
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6644577/
https://www.ncbi.nlm.nih.gov/pubmed/31458806
http://dx.doi.org/10.1021/acsomega.8b01096
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author Tomihara, Ryohei
Hirata, Keisuke
Yamamoto, Hiroki
Takano, Shinjiro
Koyasu, Kiichirou
Tsukuda, Tatsuya
author_facet Tomihara, Ryohei
Hirata, Keisuke
Yamamoto, Hiroki
Takano, Shinjiro
Koyasu, Kiichirou
Tsukuda, Tatsuya
author_sort Tomihara, Ryohei
collection PubMed
description [Image: see text] We herein investigated collision-induced dissociation (CID) processes of undecagold clusters protected by mixed ligands [Au(11)(PPh(3))(8)X(2)](+) (X = Cl, C≡CPh) using mass spectrometry and density functional theory calculations. The results showed that the CID produced fragment ions [Au(x)(PPh(3))(y)X(z)](+) with a formal electron count of eight via sequential loss of PPh(3) ligands and AuX(PPh(3)) units in a competitive manner, indicating that the CID channels are governed by the electronic stability of the fragments. Interestingly, the branching fraction of the loss of the AuX(PPh(3)) units was significantly smaller for X = C≡CPh than that for X = Cl. We ascribed the effect of X on the branching fractions of dissociations of PPh(3) and AuX(PPh(3)) to the steric difference.
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spelling pubmed-66445772019-08-27 Collision-Induced Dissociation of Undecagold Clusters Protected by Mixed Ligands [Au(11)(PPh(3))(8)X(2)](+) (X = Cl, C≡CPh) Tomihara, Ryohei Hirata, Keisuke Yamamoto, Hiroki Takano, Shinjiro Koyasu, Kiichirou Tsukuda, Tatsuya ACS Omega [Image: see text] We herein investigated collision-induced dissociation (CID) processes of undecagold clusters protected by mixed ligands [Au(11)(PPh(3))(8)X(2)](+) (X = Cl, C≡CPh) using mass spectrometry and density functional theory calculations. The results showed that the CID produced fragment ions [Au(x)(PPh(3))(y)X(z)](+) with a formal electron count of eight via sequential loss of PPh(3) ligands and AuX(PPh(3)) units in a competitive manner, indicating that the CID channels are governed by the electronic stability of the fragments. Interestingly, the branching fraction of the loss of the AuX(PPh(3)) units was significantly smaller for X = C≡CPh than that for X = Cl. We ascribed the effect of X on the branching fractions of dissociations of PPh(3) and AuX(PPh(3)) to the steric difference. American Chemical Society 2018-06-11 /pmc/articles/PMC6644577/ /pubmed/31458806 http://dx.doi.org/10.1021/acsomega.8b01096 Text en Copyright © 2018 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Tomihara, Ryohei
Hirata, Keisuke
Yamamoto, Hiroki
Takano, Shinjiro
Koyasu, Kiichirou
Tsukuda, Tatsuya
Collision-Induced Dissociation of Undecagold Clusters Protected by Mixed Ligands [Au(11)(PPh(3))(8)X(2)](+) (X = Cl, C≡CPh)
title Collision-Induced Dissociation of Undecagold Clusters Protected by Mixed Ligands [Au(11)(PPh(3))(8)X(2)](+) (X = Cl, C≡CPh)
title_full Collision-Induced Dissociation of Undecagold Clusters Protected by Mixed Ligands [Au(11)(PPh(3))(8)X(2)](+) (X = Cl, C≡CPh)
title_fullStr Collision-Induced Dissociation of Undecagold Clusters Protected by Mixed Ligands [Au(11)(PPh(3))(8)X(2)](+) (X = Cl, C≡CPh)
title_full_unstemmed Collision-Induced Dissociation of Undecagold Clusters Protected by Mixed Ligands [Au(11)(PPh(3))(8)X(2)](+) (X = Cl, C≡CPh)
title_short Collision-Induced Dissociation of Undecagold Clusters Protected by Mixed Ligands [Au(11)(PPh(3))(8)X(2)](+) (X = Cl, C≡CPh)
title_sort collision-induced dissociation of undecagold clusters protected by mixed ligands [au(11)(pph(3))(8)x(2)](+) (x = cl, c≡cph)
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6644577/
https://www.ncbi.nlm.nih.gov/pubmed/31458806
http://dx.doi.org/10.1021/acsomega.8b01096
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