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• W2018886327 endingPage "5341" @default.
• W2018886327 startingPage "5332" @default.
• W2018886327 abstract "Two new Mn(III) complexes of formulas [MnL1(N3)(OMe)]2 (1) and [MnL2(N3)2]n (2) have been synthesized by using two tridentate NNO-donor Schiff base ligands HL1{(2-[(3-methylaminoethylimino)-methyl]-phenol)} and HL2 {(2-[1-(2-dimethylaminoethylimino)methyl]phenol)}, respectively. Substitution of the H atom on the secondary amine group of the N-methyldiamine fragment of the Schiff base by a methyl group leads to a drastic structural change from a methoxido-bridged dimer (1) to a single μ1,3-azido-bridged 1D helical polymer (2). Both complexes were characterized by single-crystal X-ray structural analyses and variable-temperature magnetic susceptibility measurements. The magnetic properties of compound 1 show the presence of weak ferromagnetic exchange interactions mediated by double methoxido bridges (J = 0.95 cm–1). Compound 2 shows the existence of a weak antiferromangetic coupling along the chain (J = −8.5 cm–1) through the single μ1,3-N3 bridge with a spin canting that leads to a long-range antiferromagnetic order at Tc ≈ 9.3 K and a canting leading to a weak ferromagnetic long-range order at Tc ≈ 8.5 K. It also exibits metamagnetic behavior at low temperatures with a critical field of ca.1.2 T due to the weak antiferromagnetic interchain interactions that appear in the canted ordered phase." @default.
• W2018886327 created "2016-06-24" @default.
• W2018886327 creator A5017963965 @default.
• W2018886327 creator A5038723646 @default.
• W2018886327 creator A5039178202 @default.
• W2018886327 creator A5044126077 @default.
• W2018886327 creator A5049466662 @default.
• W2018886327 date "2012-04-11" @default.
• W2018886327 modified "2023-10-17" @default.
• W2018886327 title "A Ferromagnetic Methoxido-Bridged Mn(III) Dimer and a Spin-Canted Metamagnetic μ_1,3-Azido-Bridged Chain" @default.
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