Journal of Solid State Chemistry p. 42 - 49 (2017)
Update date:2022-08-16
Topics:
Paul, Rima
Guha, Ankur K.
Saikia, Lakshi
Bora, Sanchay J.
Four new nitrito-bridged coordination polymers of formulation [Zn(NO2)2(H2O)2]n (1) and [M(bipy)(NO2)2]n [M = Zn (2), Co (3), Mn (4)] were synthesized under solvothermal condition using N,N-dimethylformamide (DMF) as a reducing solvent. Theoretical calculation suggests in situ reduction of nitrate to nitrite with high spontaneity and without any thermodynamic barrier (ΔG = ?20.4?kcal/mol). All the complexes were characterized by elemental analysis, FT-IR spectroscopy, UV–vis spectroscopy, Raman Spectroscopy, TG analysis as well as by single crystal X-ray diffraction methods. TD-DFT approach has been employed to assign the electronic transitions occurring in the cobalt(II) complex (3) and were compared with those observed experimentally. This work also describes the preliminary studies on heterogeneous oxidation of cyclohexene by 2&3 in acetonitrile medium using TBHP.
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