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Six-Membered Thiolate–Thione Chelate Complexes of Group 10 Elements─Syntheses, Crystal Structures, and NMR Studies

Year: 2025

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide Imido- C, C’ -dithiodicarbonic- O, O ’-dialkyl esters (alkyl: 1 = Me, 2 = Et, 3 = i Pr) were synthesized by facile synthetic protocols. They form air-stable complexes with divalent group 10 ions (Ni[ 1 ] 2, Ni[ 2 ] 2, Ni[ 3 ] 2, Pd[ 1 ] 2, Pd[ 2 ] 2, Pd[ 3 ] 2, Pt[ 1 ] 2, Pt[ 2 ] 2, and Pt[ 3 ] 2 ). In their crystal structures, the metal center is coordinated by four sulfur atoms of two anionic ligands in a slightly distorted square planar fashion. The backbones of all complexes show distortion depending on the bulkiness of the ligand. A comparison of bond lengths in free ligands and their respective complexes reveals CS bond length extension and CN bond length shortening due to electron delocalization among the S–C–N–C–S moiety. The 13 C NMR spectra show a dominating influence of the metal center, while the effect of the different alkyl chains is negligible.

Source: ACS Omega

DOI: 10.1021/acsomega.5c06668

Authors: Hennes Günther, Stephan Hohloch, Frank Tambornino

Institutions: Philipps University of Marburg, Universität Innsbruck

Language: English

Topic: Inorganic and Organometallic Chemistry

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,935

Funder: Deutsche Forschungsgemeinschaft