Mn(III) complexes with nitro-substituted ligands—Spin states with a twist

0543235 - FZÚ 2022 RIV US eng J - Článek v odborném periodiku
Kühne, Irina A. - Gavin, L.C. - Harris, M. - Gildea, B. - Müller-Bunz, H. - Stein, M. - Morgan, G.G.
Mn(III) complexes with nitro-substituted ligands—Spin states with a twist.
Journal of Applied Physics. Roč. 129, č. 21 (2021), č. článku 213903. ISSN 0021-8979. E-ISSN 1089-7550
Institucionální podpora: RVO:68378271
Klíčová slova: manganese * Schiff base * spin crossover * spin quintet * spin triplet * substituent effect * density functional theory (DFT) calculations
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 2.877, rok: 2021
Způsob publikování: Open access

Structural, magnetic, and computational data on two new Mn(III) complex cations in lattices with five different counterions and varying levels of solvation are compared to investigate the influence of the position of the electron-withdrawing ligand nitro-substituent on the thermal spin crossover profile. The [MnL1]+ (a) and [MnL2]+ (b) complex cations were prepared by complexation of Mn(III) to the Schiff base chelates formed from condensation of 3-nitrosalicylaldehyde or 5-nitrosalicylaldehyde, respectively, with 1,2-bis(3-aminopropylamino)ethane and were crystallized with NO−3, (1a/b), ClO−4, (2a/b), PF−6, (3a/b), CF3SO−3 (4a/b), and BPh−4 (5a/b) counterions. Magnetostructural analysis reveals a minor trend in the spin state preference depending on the position of the nitro substituent where the orientation is dependent on crystal packing.
Trvalý link: http://hdl.handle.net/11104/0320491