Abstract The integration of organic species with inorganic units leads to the formation of hybrid materials that harness the complementary properties of both components. These organo-inorganic systems are of significant interest due to their potential for synergistic behavior. A key objective in materials chemistry is to develop straightforward and efficient synthetic strategies that combine the rigidity and stability of inorganic frameworks with the versatility and tunability of organic moieties. In this work, we report simple one-pot synthesis of a binuclear molybdenum(VI) citrate complex (C6H20N3)2[(MoO2)2O(C6H14O7)2]·4H2O, providing a streamlined route to organo-inorganic hybrid materials with potential applications in materials science. Structural characterization is performed using single crystal X-ray diffraction alongside infrared and UV-Visible spectroscopy. The compound crystallizes in the triclinic system, space group <InlineEquation ID="IEq1"> <EquationSource Format="TEX">$P\bar{1}$</EquationSource> </InlineEquation>, with the following unit cell parameters: a = 8.8654(2) Å, b = 19.9354(5) Å, c = 21.4879(5) Å, and angles α = 83.144(1)°; β = 82.590(1)°; γ = 83.423(1)°; Z = 2. Its structure is based on a binuclear 1:1 Mo-citrate complex anion [(MoO2)2O(C6H14O7)2]6–, stabilized by two organic cations (C6H20N3)3+, and accompanied by four lattice water molecules. The three-dimensional arrangement is characterized by layered assemblies oriented parallel to [103], stabilized through extensive hydrogen bonding. These layers alternate between binuclear anion, organic cation, and water molecules, forming a robust supramolecular network. Notably, this material exhibits photochromic behavior, indicating its potential for use in responsive optical systems. SEM-EDX analysis provides insight into the surface morphology and confirmes the elemental composition of the compound. Furthermore, the electrochemical characterization reveales pronounced redox activity, highlighting the compound’s potential for applications in redox-responsive systems or smart materials.

Synthesis, Structure, Photochromic and Electrochemical Behavior of a New Material Based on a Binuclear 1:1 Mo-citrate complex and the 3,3′-Diaminodipropylammonium Cations

期刊论文
发表日期：

2026年3月1日

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M. B. Diop,
S. F. Pouye,
A. Diouf,
L. Yaffa,
C. A. Kh. Diop,
M. Sidibe,
M. Angelova

摘要

Abstract

The integration of organic species with inorganic units leads to the formation of hybrid materials that harness the complementary properties of both components. These organo-inorganic systems are of significant interest due to their potential for synergistic behavior. A key objective in materials chemistry is to develop straightforward and efficient synthetic strategies that combine the rigidity and stability of inorganic frameworks with the versatility and tunability of organic moieties. In this work, we report simple one-pot synthesis of a binuclear molybdenum(VI) citrate complex (C₆H₂₀N₃)₂[(MoO₂)₂O(C₆H₁₄O₇)₂]·4H₂O, providing a streamlined route to organo-inorganic hybrid materials with potential applications in materials science. Structural characterization is performed using single crystal X-ray diffraction alongside infrared and UV-Visible spectroscopy. The compound crystallizes in the triclinic system, space group $P\bar{1}$ , with the following unit cell parameters: a = 8.8654(2) Å, b = 19.9354(5) Å, c = 21.4879(5) Å, and angles α = 83.144(1)°; β = 82.590(1)°; γ = 83.423(1)°; Z = 2. Its structure is based on a binuclear 1:1 Mo-citrate complex anion [(MoO₂)₂O(C₆H₁₄O₇)₂]^6–, stabilized by two organic cations (C₆H₂₀N₃)³⁺, and accompanied by four lattice water molecules. The three-dimensional arrangement is characterized by layered assemblies oriented parallel to [103], stabilized through extensive hydrogen bonding. These layers alternate between binuclear anion, organic cation, and water molecules, forming a robust supramolecular network. Notably, this material exhibits photochromic behavior, indicating its potential for use in responsive optical systems. SEM-EDX analysis provides insight into the surface morphology and confirmes the elemental composition of the compound. Furthermore, the electrochemical characterization reveales pronounced redox activity, highlighting the compound’s potential for applications in redox-responsive systems or smart materials.