Competition of Au-Au, Ag-Ag, and Au-Ag interactions in formation of [AuAgAuAg] rhombic unit: difference and similarity between ClO4ˉ and BF4ˉ anions

Jiyeong Song; Dongwon Kim; Young A. Lee

doi:10.1007/s11243-026-00729-y

Competition of Au-Au, Ag-Ag, and Au-Ag interactions in formation of [AuAgAuAg] rhombic unit: difference and similarity between ClO₄ˉ and BF₄ˉ anions

Jiyeong Song
, Dongwon Kim
, Young A. Lee^*

^*Corresponding author for this work

Department of Chemistry

Jeonbuk National University
Pohang Accelerator Laboratory

Research output: Contribution to journal › Journal article › peer-review

Abstract

This research shows the coexistence and competition of intracyclic Ag-Ag, intracyclic Ag-Au, intercyclic Au-Au, Ag⋅⋅⋅X, and Au⋅⋅⋅X in the formation of the skeleton of [AuAgAuAg] rhombus. Reactions of [Au(Spy)(PPh₂py)] with AgX (Xˉ = ClO₄ˉ and BF₄ˉ) produce the rhombus skeleton with an intracyclic Ag-Ag interaction rather an Au-Au interaction: the ClO₄ˉ anion affords a discrete [AuAgAuAg] whereas the BF₄ˉ affords a polymeric [AuAgAuAg] with an intercyclic Au-Au interaction (3.0245(3) Å). Anion exchange of [AuAg(Spy)(BF₄)_0.5(PPh₂py)]_n(BF₄)_0.5n∙nCH₂Cl₂ with ClO₄ˉ has been fully carried out, but that of [AuAg(Spy)(ClO₄)(PPh₂py)]₂ with BF₄ˉ has been in part accomplished in a mixture of MeOH : H₂O (1 : 5).

Original language	English
Article number	46
Journal	Transition Metal Chemistry
Volume	51
Issue number	3
DOIs	https://doi.org/10.1007/s11243-026-00729-y
State	Published - 2026.06

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@article{3be69bbaf9d04fc49c73eff9bad7f8a9,

title = "Competition of Au-Au, Ag-Ag, and Au-Ag interactions in formation of [AuAgAuAg] rhombic unit: difference and similarity between ClO4ˉ and BF4ˉ anions",

abstract = "This research shows the coexistence and competition of intracyclic Ag-Ag, intracyclic Ag-Au, intercyclic Au-Au, Ag⋅⋅⋅X, and Au⋅⋅⋅X in the formation of the skeleton of [AuAgAuAg] rhombus. Reactions of [Au(Spy)(PPh2py)] with AgX (Xˉ = ClO4ˉ and BF4ˉ) produce the rhombus skeleton with an intracyclic Ag-Ag interaction rather an Au-Au interaction: the ClO4ˉ anion affords a discrete [AuAgAuAg] whereas the BF4ˉ affords a polymeric [AuAgAuAg] with an intercyclic Au-Au interaction (3.0245(3) {\AA}). Anion exchange of [AuAg(Spy)(BF4)0.5(PPh2py)]n(BF4)0.5n∙nCH2Cl2 with ClO4ˉ has been fully carried out, but that of [AuAg(Spy)(ClO4)(PPh2py)]2 with BF4ˉ has been in part accomplished in a mixture of MeOH : H2O (1 : 5).",

author = "Jiyeong Song and Dongwon Kim and Lee, \{Young A.\}",

note = "Publisher Copyright: {\textcopyright} The Author(s), under exclusive licence to Springer Nature Switzerland AG 2026.",

year = "2026",

month = jun,

doi = "10.1007/s11243-026-00729-y",

language = "English",

volume = "51",

journal = "Transition Metal Chemistry",

issn = "0340-4285",

number = "3",

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TY - JOUR

T1 - Competition of Au-Au, Ag-Ag, and Au-Ag interactions in formation of [AuAgAuAg] rhombic unit

T2 - difference and similarity between ClO4ˉ and BF4ˉ anions

AU - Song, Jiyeong

AU - Kim, Dongwon

AU - Lee, Young A.

PY - 2026/6

Y1 - 2026/6

N2 - This research shows the coexistence and competition of intracyclic Ag-Ag, intracyclic Ag-Au, intercyclic Au-Au, Ag⋅⋅⋅X, and Au⋅⋅⋅X in the formation of the skeleton of [AuAgAuAg] rhombus. Reactions of [Au(Spy)(PPh2py)] with AgX (Xˉ = ClO4ˉ and BF4ˉ) produce the rhombus skeleton with an intracyclic Ag-Ag interaction rather an Au-Au interaction: the ClO4ˉ anion affords a discrete [AuAgAuAg] whereas the BF4ˉ affords a polymeric [AuAgAuAg] with an intercyclic Au-Au interaction (3.0245(3) Å). Anion exchange of [AuAg(Spy)(BF4)0.5(PPh2py)]n(BF4)0.5n∙nCH2Cl2 with ClO4ˉ has been fully carried out, but that of [AuAg(Spy)(ClO4)(PPh2py)]2 with BF4ˉ has been in part accomplished in a mixture of MeOH : H2O (1 : 5).

AB - This research shows the coexistence and competition of intracyclic Ag-Ag, intracyclic Ag-Au, intercyclic Au-Au, Ag⋅⋅⋅X, and Au⋅⋅⋅X in the formation of the skeleton of [AuAgAuAg] rhombus. Reactions of [Au(Spy)(PPh2py)] with AgX (Xˉ = ClO4ˉ and BF4ˉ) produce the rhombus skeleton with an intracyclic Ag-Ag interaction rather an Au-Au interaction: the ClO4ˉ anion affords a discrete [AuAgAuAg] whereas the BF4ˉ affords a polymeric [AuAgAuAg] with an intercyclic Au-Au interaction (3.0245(3) Å). Anion exchange of [AuAg(Spy)(BF4)0.5(PPh2py)]n(BF4)0.5n∙nCH2Cl2 with ClO4ˉ has been fully carried out, but that of [AuAg(Spy)(ClO4)(PPh2py)]2 with BF4ˉ has been in part accomplished in a mixture of MeOH : H2O (1 : 5).

UR - https://www.scopus.com/pages/publications/105036129265

U2 - 10.1007/s11243-026-00729-y

DO - 10.1007/s11243-026-00729-y

M3 - Journal article

AN - SCOPUS:105036129265

SN - 0340-4285

VL - 51

JO - Transition Metal Chemistry

JF - Transition Metal Chemistry

IS - 3

M1 - 46

ER -

Competition of Au-Au, Ag-Ag, and Au-Ag interactions in formation of [AuAgAuAg] rhombic unit: difference and similarity between ClO₄ˉ and BF₄ˉ anions

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