Three new manganese(II) coordination complexes based on tetrazole carboxylate ligands

Syntheses, crystal structures and thermal decomposition studies of two novel Mn(ii)-MOFs with tetrazole-based carboxylic acids

“…The Mn–O distances are in the range of 2.153(5)–2.32(2) Å (Table 2), which are similar to those reported in the related Mn( ii )-MOFs. 3,11,19 The (L 1 ) 2− ligand in 1 shows only a kind of coordinated mode: each carboxylate adopts a μ 2 -bridging syn – anti bidentate fashion to connect two Mn( ii ) atoms [a tetradentate mode shown in Scheme 2], 27 while the tetrazolyl N atoms do not participate in coordination. The phenyl and two tetrazole rings in (L 1 ) 2− ligand are nearly coplanar because the phenyl ring make a dihedral angle of 4.18(2)° and 3.08(2)° with the N1-tetrazole and N5-tetrazole ring, respectively.…”

“…Consequently, the multi-functional MOFs with different dimensions (1D-3D) and interesting properties (luminescent sensing, dye adsorption, photocatalysis and proton conduction) may be constructed from the ligands and different metal ions. [3][4][5][6][7][8][9][10] In our previous work, a series of tetrazole-based carboxylic acids such as N-(1-carboxymethyltetrazole-5-yl)-N-(2 0 -carboxymethyltetrazole-5 0 -yl)amine, 11,12 1,3-bis(2-carboxymethyltetrazol-5-yl) benzene (H 2 L 1 ), [13][14][15] 1,4-bis(2-carboxymethyltetrazol-5-yl)benzene, 16 1,3,5-tri(2-carboxymethyltetrazol-5-yl)benzene, 2,14,[17][18][19] and 2-(5-(3pyridyl)tetrazol-2-yl)propionic acid (HL 2 ) [20][21][22][23][24] have been designed and successfully prepared. Their MOFs with Mg(II), Ca(II), Sr(II), Ba(II), Pb(II), Mn(II), Co(II), Zn(II), and Cd(II) ions have been synthesized and the related properties like luminescence, 2,11,16 thermal decomposition, 13,16,17,20,21,24 proton conduction 2 and anticancer activity 22,23,25 have also been researched.…”

“…In our previous work, a series of tetrazole-based carboxylic acids such as N -(1-carboxymethyltetrazole-5-yl)- N -(2′-carboxymethyltetrazole-5′-yl)amine, 11,12 1,3-bis(2-carboxymethyltetrazol-5-yl)benzene (H 2 L 1 ), 13–15 1,4-bis(2-carboxymethyltetrazol-5-yl)benzene, 16 1,3,5-tri(2-carboxymethyltetrazol-5-yl)benzene, 2,14,17–19 and 2-(5-(3-pyridyl)tetrazol-2-yl)propionic acid (HL 2 ) 20–24 have been designed and successfully prepared. Their MOFs with Mg( ii ), Ca( ii ), Sr( ii ), Ba( ii ), Pb( ii ), Mn( ii ), Co( ii ), Zn( ii ), and Cd( ii ) ions have been synthesized and the related properties like luminescence, 2,11,16 thermal decomposition, 13,16,17,20,21,24 proton conduction 2 and anticancer activity 22,23,25 have also been researched.…”

Two copper(II) compounds derived from tetrazole carboxylates for chemodynamic therapy against hepatocellular carcinoma cells

“…Coordination compounds, a class of functional materials, are attracting increasing interest owing to not only their diverse structures but also their great potential in the field of luminescence, adsorption, and catalysis ( Aromi et al, 2011 ; Wriedt et al, 2012 ; Zou et al, 2014a ; Zou et al, 2015a ; Du et al, 2015 ; Shen et al, 2016 ; Zhang et al, 2016 ; Lin et al, 2019 ; Zou et al, 2021 ). Tetrazole carboxylates are bi-functional ligands with either flexible carboxylate groups or rigid tetrazole rings that have great potential for constructing a variety of coordination architectures.…”

One pot synthesis of two cobalt(iii) Schiff base complexes with chelating pyridyltetrazolate and exploration of their bio-relevant catalytic activities

“…The chemistry of tetrazoles and their complexes, on the other hand, has received great attention now-a-days 15 for their wide range of applications in coordination chemistry, 16 medicinal chemistry 17 and material science. 18 Although several synthetic methods have been reported so far, synthesis by 1,3-dipolar cycloaddition of cyanopyridine/cyanopyrazines and metal coordinated azide is probably the best method.…”