The aim of green chemistry is design and development of clean and efficient methods for ‎synthesis of new materials to reduce or eliminate the use of hazardous solvents1. In this ‎regard, rapid developments in mechanochemistry as a green technology have occurred for ‎several reasons2. These methods are now a practical and environmentally‏-‏friendly ‎alternative to conventional solution-based methods and has provided a green route for the ‎preparation of a wide range of compounds including cocrystals, coordination compounds, ‎crown ethers, clusters, inclusion compounds, luminescent materials, metal-organic ‎frameworks (MOFs) and zeolitic imidazolate frameworks (ZIFs)3-4.‎‏ ‏In the present work ‎the alternative green route was examined for the preparation of new mercury (II) iodide ‎complex containing carboxamide ligand against of solution-based methods. The results ‎showed that the same products obtained based on X-ray crystallographic analysis as ‎powder and single crystal diffraction methods respectively. In this regard, the additional ‎characterization methods such as IR spectroscopy and elemental analysis were performed ‎for two compounds. Surprisingly mixing reagents manually in a pestle and mortar in ‎solvent-free condition in a shorter time, resulted in hjgher yield. ‎

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