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The systematical series of Zn-Ln trinuclear carboxylate molecular complexes with general formula [Zn2Ln(NO3)(phbz)6(L)2] (Ln = Eu, Gd, Tb; phbz is anion of 4-biphenylcarboxylic acid; L is pyridine, 2,3-lutidine or 2,2’-bipyridine)...

The interaction of heterometallic compounds [Co2La(Piv)6(NO3)(MeCN)2] (1) and [Co2La(Piv)6(NO3)(Py)2] (2) (Piv‐pivalate, Py‐pyridine) with triphenylphosphine was studied. It was shown that labile terminal molecules of MeCN in complex 1 were substituted by triphenylphosphine that led to the formation of complex [Co2La(Piv)6(NO3)(Ph3P)2] (3), whereas compound 2 in similar conditions did not undergo ligand substitution reaction. Molecular structure of compound 3 was determined by means single crystal X‐ray diffraction. The temperature dependence of the magnetic susceptibility of 3 was simulated with a model which implied only zero‐field splitting of Co(II) ions. It was found that ZFS parameters (D) for Co(II) ions in 3 were close to D value in 1. The field‐induced slow magnetic relaxation was observed for compound 3 on the result of magnetic susceptibility measurements in alternating current magnetic field.

Correction for ‘The effect of terminal N-donor aromatic ligands on the sensitization and emission of lanthanide ions in Zn2Ln (Ln = Eu, Tb) complexes with 4-biphenylcarboxylate anions’ by Stanislav N. Melnikov et al., New J. Chem., 2021, 45, 13349–13359, DOI: 10.1039/D0NJ05994C.

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