Manganese carboxylate complexes have been well studied in the past, due to their relevance in bioinorganic chemistry, as well as their behavior as nanoscale magnetic materials that is so-called single-molecule magnets (SMMs). SMMs are special class of magnetic materials in which magnetism is intrinsic to the molecule. Here each molecule acts as bit of magnet. Polynuclear manganese clusters often possess high spin ground states due to its availability of unpaired electrons as well as large and negative magnetoanisotropy, a combination which leads to an energy barrier for the reversal of the magnetization direction which is essential for an SMM. These polymetallic coordination complexes are also known for their architectural beauty, symmetry and high nuclearity. SMMs are particularly interesting because they have several potential applications in the future such as high density memory storage, quantum computations, magnetic refrigeration and so on. Synthesis of such polynuclear metal clusters involves the incorporation of multiple metal atoms supported by organic ligands. In this regard, alkoxide-based ligands play a pivotal role since this functionality is an excellent bridging group that fosters higher nuclearity product formation. By incorporating never explored carboxylic acids with manganese salts, herein, a new class of metal complexes with an alkoxide- based ligand, 2- (Hydroxymethyl)- pyridine  has been synthesized and studied. Synthesis, crystal structure (single crystal X-Ray), elemental and magnetic analysis, and spectroscopic (IR, UV, and <sup>1</sup>H NMR) characterizations of the synthesized complex will be discussed.

Exploring new synthetic strategies by using novel manganese carboxylate complexes along with a well-explored ligand, 2-(Hydroxymethyl)- pyridine in the area of polynuclear coordination chemistry

255th National Meeting (2018)

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