Carbonato-bridged heteronuclear NiII2LnIII2 (Ln=Tb, Dy, Ho, Er, Tm, Yb, Lu) complexes synthesized by fixation of atmospheric CO2 – Structural and magnetic studies

Magnetic Properties of End-to-End Azide-Bridged Tetranuclear Mixed-Valence Cobalt(III)/Cobalt(II) Complexes with Reduced Schiff Base Blocking Ligands and DFT Study

“…The symmetric and antisymmetric carboxylate stretching vibrations can be observed as sharp absorption bands respectively at 1477 and 1532 cm –1 in 1 and 1470 and 1534 cm –1 in 2 . 45−46 A very strong double band observed at 2023 and 2121 cm –1 in 1 and 2028 and 2117 cm –1 in 2 confirms the presence of two types of azide groups (terminal and bridging) in both complexes.…”

Synthesis, crystal structure, and luminescence properties of a three-dimensional coordination polymer from europium(iii) carbonate hemioxalate hydrate

“…The origin of the carbonate ions is unclear at present, but a degradation product from an ox anion or atmospheric carbon dioxide would supposedly be a carbonate source. [30][31][32][33][34] It seems to be relatively rare that carbonate salts were prepared under mildly acidic conditions. An apparatus like a sealed bomb may be responsible for the trapping of volatile carbon dioxide within a crystal.…”

“…There have been several reports on CO 2 fixation to coordination compounds. [30][31][32][33][34] The present reaction can be regarded as a rare example where CO 2 was incorporated into a crystal under acidic reaction conditions. Such properties attract much attention for reducing greenhouse gases.…”

Synthesis, crystal structure and magnetic properties of octanuclear Ni4Ln4 complexes constructed using a Schiff base ligand and di-2-pyridyl ketone

“…10,19,[42][43][44] Notably, previous studies also revealed that atmospheric CO 2 can be fixed by metal complexes in a basic medium, and several 3d-4f complexes have been reported including Ni-Dy complexes. 33,45,46 Structural analysis revealed that the metallic core of 1 can be viewed as a Ni 2 Dy 2 butterfly connecting two NiDy subunits on each side. Fits of the dc magnetic susceptibilities of the Y analogue (3) revealed that magnetic coupling between Ni II on the ''body'' sites of the butterfly subunit is ferromagnetic.…”