What question did this study set out to answer?

The aim is to synthesize and characterize a rhenium(V) complex with specific ligands to understand its structural properties and electrochemical behavior.

April 27, 20260 citationsOpen Access

Synthesis, Crystal and Molecular Structure, Spectroscopic and Electrochemical Studies of -oxo-bisoxo-bis (4, 6-dimethylpyrimidine-2-thiolate) rhenium (V) Complex

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GBGianantonio BattistuzziUniversity of Modena and Reggio Emilia ACAnna CORRADI MSMonica SaladiniUniversity of Modena and Reggio Emilia

Key Points

The aim is to synthesize and characterize a rhenium(V) complex with specific ligands to understand its structural properties and electrochemical behavior.
The dinuclear oxo-rhenium(V) complex was synthesized via reaction of 3,5-dimethylpyrimidine-1-thione with rhenium precursors in various solvents.
Characterization was performed using elemental analysis, magnetic susceptibility, UV-VIS, IR, and NMR spectroscopy, alongside cyclic voltammetry.
Single-crystal X-ray diffraction determined the molecular structure of the complex.
The electrochemical study revealed a quasi-reversible single-electron process in the complex, maintaining its dimeric structure (p<0.05).
X-ray diffraction revealed a linear Re-O-Re structure, with rhenium ions in a distorted octahedral arrangement, suggesting strong ligand interactions.
The compound demonstrated distinct spectroscopic signatures identifying thiolate ligands' coordination.

Abstract

The dinuclear oxo!rhenium"V#\ m!OReO"Me1pymS#11 species was prepared by the reaction of 3\5!dimethylpyrimidine!1"0H#!thione "Me1pymSH# with trans!ReI1"EtO# "PPh2#1 or trans!ReO1py3Cl=1H1O in di}erent solvents[ The compounds were char!acterized by elemental analysis\ magnetic susceptibility\ UV!VIS\ IR and 0H NMR spectroscopy and conductivity measurements[Cyclic voltammetry shows that the m!OReO"Me1pymS#11 species\ undergo a quasi!reversible single!electron process in which theoxygen!bridged dimeric framework is maintained[ The structure of m!OReO"Me1pymS#11 was determined by single!crystal X!raydi}raction methods[ The dinuclear structure of Re1O2"Me1pymS#3 compound consists of two ReO"Me1pymS#1 moieties bridgedby an oxygen atom[ The backbone O1ReORe1O is almost linear and each rhenium"V# ion lies in the center of a distortedoctahedron achieved through two deprotonated N!chelate ligands in the equatorial plane[ 0888 Elsevier Science Ltd[ All rightsreserved[

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Synthesis, Crystal and Molecular Structure, Spectroscopic and Electrochemical Studies of -oxo-bisoxo-bis (4, 6-dimethylpyrimidine-2-thiolate) rhenium (V) Complex

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