A Facile Synthesis, Crystallographic, Spectral, Thermal, and Electrochemical Investigations of Neutral [Cu₂(Et₂dtc)₄] Dimer

Abstract

A neutral dimeric complex [Cu₂(Et₂dtc)₄] (dtc = dithiocarbamate) (1) was synthesized in single step under mild conditions. Structure of 1 has been studied using single-crystal XRD to gauge the influence of CH₃ and CH₂ groups of coordinated dithiocarbamate ligands on the association of the molecules in solid state. Evidently 1 features the ability of these groups to form intermolecular (sp³)C‒HΠ(chelate ring) and (sp³)C‒HS stacking interactions leading to fascinating 3D infinite network. Complex has been completely characterized by spectrophotometric methods, optical behavior, and thermal and cyclic voltammetry studies. Cyclic voltammetric study confirmed the binding affinity of 1 toward H₂PO^– ₄.

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Keywords:

• cyclic voltammetric study
• fluorescence
• optical band gap
• (sp³)C‒HΠ(chelate ring) interaction
• (sp³)C‒HS interaction
• TGA/DTA
• UV-visible

Acknowledgments

Mr. Verma and Dr. Singh acknowledge CSIR, New Delhi for financial support (Project No. 01/(2204)/07/EMR-II). Mr. Kadu acknowledges UGC, New Delhi for the fellowship. The authors are thankful to the CSMCRI Bhavnagar for the single crystal and Mr. Shardul Bhatt for Cyclic voltammetric analysis. Professor BVK is greatly acknowledged for providing laboratory facility and his consistent support.