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The reaction of bis(1,2,4-triazolyl-4-yl) (btr) and MnClO4·6H2O gave rise to a Mn(Ⅱ) complex comprised of unprecedented dinuclear Mn(Ⅱ) units, {[Mn2(btr)3(H2O)5]-(ClO4)4(H2O)2]n(1). Single-crystal X-ray diffraction analysis revealed that 1 crystallizes in the monoclinic space group C2/c. btr adopts two types of bridging modes. One serves as a μ-N1:N2 bridge through one triazolyl ring of btr forming a dinuclear Mn(Ⅱ) unit, and the other adopts an exo-bidentate mode using two nitrogen atoms from each triazolyl ring and links the dinuclear units into a 2D cationic layer. ClO4- acts as a counter anion and does not take part in coordination. Interestingly, 2D layers are packed in an ABCABC mode. ClO4- and uncoordinated water molecules locate between the adjacent layers, and extensive hydrogen bonds further stabilize the whole framework.
The reaction of bis (1,2,4-triazolyl-4-yl) (btr) and MnClO4 · 6H2O gave rise to a Mn (II) complex comprised of dinuclear Mn (H2O) 5] - (ClO4) 4 (H2O) 2] n (1). Single-crystal X-ray diffraction analysis analysis revealed that 1 crystallizes in the monoclinic space group C2 / c. Btr adoption two types of bridging modes. One serves as a μ-N1: N2 bridge through one triazolyl ring of btr forming a dinuclear Mn (II) unit, and the other adopting an exo-bidentate mode using two nitrogen atoms from each triazolyl ring and links the dinuclear units into a two-cationic layer. ClO4- acts as a counter anion and does not take part in coordination. Interestingly, 2D layers are packed in an ABCABC mode. ClO4- and uncoordinated water molecules locate between the adjacent layers, and extensive hydrogen bonds further stabilize the whole framework.