Quest for Extended Coordination Networks from High Connected Azido-Bridged Clusters

Two nets {[Co6(L)6(µ-1,1,1-N3)6]·H2O}n (1) and {[Co4(L)4(µ-1,1,1,1-N3)(µ-1,1-N3)2]·H+·5H2O}n (2) based on high connected µ-1,1,1 and µ-1,1,1 azido-bridged clusters were obtained with nicotinate N-oxide(L) as co-ligand. Magnetic interactions existed in 1 and 2,...

An Uneven Chain-like Ferromagnetic Copper(II) Coordination Polymer Displaying Metamagnetic Behavior and Long-Range Magnetic Ordering

Ferromagnetic coupling exists in an uneven chain-like copper(II) complex with both end-on azido and syn-syn carboxylato bridges, (Cu3(L)2(N3)4(H2O)3)n (1, HL = 6-hydroxynicotinic acid). It is the first example of one-dimensional (1D) chain-like copper(II) coordination polymer showing both metamagnetic behavior and long-range magnetic ordering (Tc = 6.7 K), thanks to the interchain hydrogen bonds, which make a three-dimensional (3D) supramolecular array of the entire molecular structure and mediate the interchain antiferromagnetic interaction.

The crystal structure of catena-poly[(μ2-2-((3-bromo-2-oxidobenzylidene)amino)acetato-κ4 O,N,O′:O′′)-(dimethylformamide-κ1 O)]zinc(II), C12H13N2O4BrZn

C12H13N2O4BrZn, monoclinic, P21/n (no. 14), a = 12.0182(12) Å, b = 6.9735(7) Å, c = 16.2510(14) Å, β = 93.572(9)°, V = 1359.3(2) Å3, Z = 4, R gt(F) = 0.0279, wR ref(F 2) = 0.0613, T = 293(2) K.

Magnetic dimensionality and the crystal structure of two copper(ii) coordination polymers containing Cu6 and Cu2 building units

The preparation, structural characterization, EPR spectroscopy and magnetic structural correlation of two Cu(ii) coordination polymers are reported.

Copper(i) iodide cluster-based lanthanide organic frameworks: synthesis and application as efficient catalysts for carboxylative cyclization of propargyl alcohols with CO2 under mild conditions

Two non-noble metal based metal–organic frameworks display different catalytic activities in the carboxylative cyclization of propargyl alcohols with CO₂ under atmospheric pressure and room temperature.

A nickel(ii)–manganese(ii)-azido layered coordination polymer showing a three-dimensional ferrimagnetic order at 35 K

The synthesis, crystal structure and magnetic properties of a two-dimensional nickel(ii)–manganese(ii)–azido system are described. It is an interesting molecular magnet because it exhibits long-range ferrimagnetic ordering at a T_c of 35 K and a hysteresis loop up to 20 K.

Ferromagnetic ordering and slow magnetic relaxation observed in a triple-bridged azido-Cu(ii) chain compound with mixed carboxylate/ethanol linkers

A triple-bridged Cu(ii) chain compound with μ-1,1-(EO)azido, syn,syn-carboxylate, and μ2-ethanol linkers exhibits slow-relaxation and long-range magnetic ordering.