Coordination Versatility of Pyrazole‐Based Ligands towards High‐Nuclearity Transition‐Metal and Rare‐Earth Clusters

Investigations on the reactivity of arylboronic acid with phenolic pyrazole

“…On the other hand, phenolic pyrazoles (N 2 O-type ligand) have been used as ligands for synthesizing multinuclear transition metal clusters; some of which possess interesting magnetic properties [46][47][48][49][50][51]. But the ligating ability of phenolic pyrazoles (O,N,N-donors) towards main group metals were not known.…”

Tuning the Spin States of Two Apical Iron(II) Ions in a Pentanuclear Iron(II) Cluster Helicate through the Choice of Anions

“…In this paper, guided by the supermolecular self-assembly principle, we selected a bptH ligand with two bidentate chelating sites, mainly because this ligand should also provide an appropriate ligand field favoring the occurrence of SCO [4,[22][23][24][25][26]; according to past literature, this kind of ligand could probably construct a multi-nucleus iron(II) ion ligand [27], and this accorded with our design concept of combining the spin-crossover nature and magnetic exchange to study spintronics. We used the self-assembly of this ligand with iron(II) ions with an octahedral coordination habit to obtain three Fe 5 cationic clusters [{Fe II (µ-bpt) 3 .…”

Structural, spectral and magnetic studies of two Co(II)-N-heterocyclic diphosphonates based on multinuclear units

“…Polypyridyl ligands have been intensively used as ancillary building blocks in the phosphonate coordination chemistry [6], due to their interesting electronic, photonic and magnetic properties, as well as π-stacking ability and directional H-bonding when coordinating to transition metals. Although many chemists devoted to the study of self-assembly of the CPs by means of the mixed ligands [7][8][9][10][11], low-dimensional phosphonate CPs have not been well developed based on auxiliary N-heterocyclic ligands under the solvothermal condition. So 2,2′-bipy and phen have been selected as auxiliary ligands in our work.…”