Synthesis, Structural Characterization, and Aurophilic Interactions in Gold(I) Thiolate Complexes Supported by Diphosphine Ligands

Author(s)	KUMARI Suman
Country	India
Abstract	A comprehensive study on the synthesis and structural characterization of gold(I) thiolate complexes supported by bis(diphenylphosphino)methane (dppm) and 1,2-bis(diphenylphosphino)ethane (dppe) is presented. Reactions of [dppm(AuCl)₂] and [dppe(AuCl)₂] with heteroaromatic thiols afford discrete dinuclear, tetranuclear, and polymeric gold(I) assemblies. All complexes were characterized by (1H) and (31P) NMR spectroscopy, IR spectroscopy, and single-crystal X‑ray diffraction. The structures reveal nearly linear coordination geometries at gold(I) centers and pronounced Au···Au interactions (3.07–3.25 Å), consistent with aurophilic attraction. Ligand steric and electronic effects dictate nuclearity and supramolecular aggregation. These results establish diphosphine-supported gold(I) thiolates as versatile building blocks for polynuclear gold architectures.
Keywords	Gold(I) complexes; thiolates; diphosphine ligands; aurophilic interaction; X‑ray crystallography
Field	Chemistry
Published In	Volume 7, Issue 6, November-December 2025
Published On	2025-12-31
DOI	https://doi.org/10.36948/ijfmr.2025.v07i06.64785

About IJFMR Fees & Payment Current Issue Publication Archive	Submit Research Paper Track Submission Status Publication Guidelines Publication Ethics Peer Review & Plagiarism	Join as a Reviewer Editors & Reviewers Reviewer Referral Program Get Reviewer Membership Certi.	Website/Journal Policies Usage Policy Content Policies Privacy Policy

Contact Us		+91-9687-828-838	editor@ijfmr.com

International Journal For Multidisciplinary Research