Synthesis, crystal structure, and magnetic properties of binuclear MnIII-azido and 1D polymeric MnII-μ1,3-thiocyanato novel species based on a neutral hexadentate Schiff base

Structural and Magnetic Properties of MnIII and CuII Tetranuclear Azido Polyoxometalate Complexes: Multifrequency High‐Field EPR Spectroscopy of Cu4 Clusters with S=1 and S=2 Ground States

“…It should also be noted that Mn III complexes with terminal [25] or bridging azido ligands [21] exhibiting stretching vibrations with very similar wave numbers have been previously reported. For complex 2 a, a strong and relatively broad asymmetric stretching vibration was observed at 2080 cm…”

{N,N′-Bis[1-(2-pyridyl)ethylidene]propane-1,2-diamine-κ4N,N′,N′′,N′′′}bis(thiocyanato-κN)manganese(II)

“…1, the Mn II atom is six-coordinated by four N atoms of the Schiff base ligand 1,2-bis(2′pyridylmethyleneamino)propane, and by two N atoms from two thiocyanate ligands, forming a distorted octahedral geometry. The coordinate bond lengths (Table 1) are comparable with those observed in other similar manganese(II) complexes with Schiff bases (Louloudi et al, 1999;Sra et al, 2000;Karmakar et al, 2005;Deoghoria et al, 2005).…”

“…For another complex containing 1,2-bis(2 0 -pyridylmethyleneamino)propane, see: Ouyang et al (2002). For related manganese(II) complexes with Schiff bases, see: Louloudi et al (1999); Sra et al (2000); Karmakar et al (2005); Deoghoria et al (2005). For the synthesis of the Schiff base, see: Gourbatsis et al (1990).…”

Hydrogen bond and π…π interaction based 3D supramolecular architecture of chiral cobalt(III) azido tridentate chelating Schiff base

“…0.15 · 0.20 · 0.30 mm 3 , F w : 376.30, Orthorhombic, P2 1 2 1 2 1 (No. 19), a = 8.0609 (9) R 1 = 0.0264, wR 2 = 0.0567, GOF = 0.984, Residual electron density (largest diff. Peak and hole) = 0.22 and À0.23 e A À3 , Weighting scheme: R 1 ¼ P jF o j À jF c jj= P jF o ; wR 2 ¼ ½ P wðF 2 o À F 2 c Þ 2 = P wðF 2 o Þ 2 1=2 , Calc.…”

“…Cobalt(II) center in the complex is oxidized by the azido anion due to stronger r donor ability that favours oxidation to cobalt(III) in presence of methanol [19]. The air-stable, moisture-insensitive complex is soluble in a range of common organic solvents but is insoluble in water.…”