Synthesis of an ST = 7 [Mn3] Mixed-Valence Complex Based on 1,3- Propanediol Ligand Derivatives and Its One-Dimensional Assemblies

Controlled organization of high-spin complexes and single-molecule magnets is a great challenge in molecular magnetism in order to study the effect of the intercomplex magnetic interactions on the intrinsic properties of a given magnetic object. In this work, a new ST = 7 trinuclear mixedvalence Mn complex, [MnIIIMnII 2(LA)2(Br)4(CH3OH)6] *Br* (CH3OH)1.5*(H2O)0.5 (1), is reported using a pyridiniumfunctionalized 1,3-propanediol ligand (H2LABr = 1-(3-bromo- 2,2-bis(hydroxymethyl)propyl)pyridinium bromide)...

Synthesis of an <i>S</i>_T = 7 [Mn₃] Mixed-Valence Complex Based on 1,3-Propanediol Ligand Derivatives and Its One-Dimensional Assemblies

Controlled organization of high-spin complexes and single-molecule magnets is a great challenge in molecular magnetism in order to study the effect of the intercomplex magnetic interactions on the intrinsic properties of a given magnetic object. In this work, a new <i>S</i>_T = 7 trinuclear mixed-valence Mn complex, [Mn^IIIMn^II₂(L_A)₂(Br)₄(CH₃OH)₆] ·Br·(CH₃OH)_1.5·(H₂O)_0.5 (<b>1</b>), is reported using a pyridinium-functionalized 1,3-propanediol ligand (H₂L_ABr = 1-(3-bromo-2,2-bis­(hydroxymethyl)­propyl)­pyridinium bromide). Using azido anions as bridging ligands and different pyridinium-functionalized 1,3-propanediol ligands (H₂L_BBr = 1-(3-bromo-2,2-bis­(hydroxymethyl)­propyl)-4-picolinium bromide; H₂L_CBr = 1-(3-bromo-2,2-bis­(hydroxymethyl)­propyl)-3,5-lutidinium bromide), the linear [Mn^IIIMn^II₂L₂X₄]⁺ building block has been assembled into one-dimensional coordination networks: [Mn^IIIMn^II₂(L_A)₂(Br)₄(CH₃OH)₄(N₃)]·((C₂H₅)₂O)_1.25 (<b>2∞</b>), [Mn^IIIMn^II₂(L_B)₂(Br)₄(C₂H₅OH)­(CH₃OH)­(H₂O)₂(N₃)]·(H₂O)_0.25 (<b>3∞</b>), and [Mn^IIIMn^II₂(L_C)₂(Cl)_3.8(Br)_0.2(C₂H₅OH)₃(CH₃OH)­(N₃)] (<b>4∞</b>). The syntheses, characterization, crystal structures, and magnetic properties of these new [Mn₃]-based materials are reported

Rolling Up the Sheet: Constructing Metal–Organic Lamellae and Nanotubes from a [{Mn₃(propanediolato)₂}(dicyanamide)₂]_<i>n</i> Honeycomb Skeleton

Target synthesis of metal–organic nanotubes (MONTs) through a classic “rolling-up” mechanism remains a big challenge for coordination chemists. In this work, we report three 2D lamellar compounds and one (4,0) zigzag MONT based on a common honeycomb coordination skeleton. Our synthetic strategy toward sheet/tube superstructure transformation is to asymmetrically modify the inter-layer interactions by gradually increasing the size of the amine templates. Eventually, to relieve the surface tension of individual layers and to enhance surface areas and optimize host–guest interactions to accommodate bigger guests, spontaneous rolling up to form a tubular structure was achieved

Rolling Up the Sheet: Constructing Metal–Organic Lamellae and Nanotubes from a [{Mn₃(propanediolato)₂}(dicyanamide)₂]_<i>n</i> Honeycomb Skeleton

Target synthesis of metal–organic nanotubes (MONTs) through a classic “rolling-up” mechanism remains a big challenge for coordination chemists. In this work, we report three 2D lamellar compounds and one (4,0) zigzag MONT based on a common honeycomb coordination skeleton. Our synthetic strategy toward sheet/tube superstructure transformation is to asymmetrically modify the inter-layer interactions by gradually increasing the size of the amine templates. Eventually, to relieve the surface tension of individual layers and to enhance surface areas and optimize host–guest interactions to accommodate bigger guests, spontaneous rolling up to form a tubular structure was achieved

Rolling Up the Sheet: Constructing Metal–Organic Lamellae and Nanotubes from a [{Mn₃(propanediolato)₂}(dicyanamide)₂]_<i>n</i> Honeycomb Skeleton

Target synthesis of metal–organic nanotubes (MONTs) through a classic “rolling-up” mechanism remains a big challenge for coordination chemists. In this work, we report three 2D lamellar compounds and one (4,0) zigzag MONT based on a common honeycomb coordination skeleton. Our synthetic strategy toward sheet/tube superstructure transformation is to asymmetrically modify the inter-layer interactions by gradually increasing the size of the amine templates. Eventually, to relieve the surface tension of individual layers and to enhance surface areas and optimize host–guest interactions to accommodate bigger guests, spontaneous rolling up to form a tubular structure was achieved

Rolling Up the Sheet: Constructing Metal–Organic Lamellae and Nanotubes from a [{Mn₃(propanediolato)₂}(dicyanamide)₂]_<i>n</i> Honeycomb Skeleton

Target synthesis of metal–organic nanotubes (MONTs) through a classic “rolling-up” mechanism remains a big challenge for coordination chemists. In this work, we report three 2D lamellar compounds and one (4,0) zigzag MONT based on a common honeycomb coordination skeleton. Our synthetic strategy toward sheet/tube superstructure transformation is to asymmetrically modify the inter-layer interactions by gradually increasing the size of the amine templates. Eventually, to relieve the surface tension of individual layers and to enhance surface areas and optimize host–guest interactions to accommodate bigger guests, spontaneous rolling up to form a tubular structure was achieved