A reduction series of neodymium supported by pyridine(diimine) ligands

Abstract

A series of reduced PDI neodymium complexes by the PDI ligand acting as an electron sink.

Synthesis of LnII‐in‐Cryptand Complexes by Chemical Reduction of LnIII‐in‐Cryptand Precursors: Isolation of a NdII‐in‐Cryptand Complex

“…To obtain more information about the chemistry of Ln‐in‐crypt complexes in general, we have investigated reactions of lanthanide triflates with crypt. We report here that lanthanide triflates, Ln III (OTf) 3 (Ln=Nd, Sm), form isolable Ln III ‐in‐crypt complexes that are soluble in THF, the solvent commonly used for KC 8 reductions . Reduction of these Ln III complexes with KC 8 demonstrates that chemical transformations of Ln III ‐in‐crypt to Ln II ‐in‐crypt are possible with crystallographically‐characterized precursors and products.…”

Diiminepyridine‐Supported Phosphorus(I) and Phosphorus(III) Complexes: Synthesis, Characterization, and Electrochemistry

“…Diiminepyridines (DIPs, Figure ) are among the most popular redox “non‐innocent” ligands, so‐called as the ligand can serve as an additional site for oxidation/reduction events in metal coordination complexes . In addition to widespread application in late, first‐row transition metal mediated catalysis, they are also used for their simple ability to bind early transition metals,, rare earths, and main‐group elements in a tridentate, pincer‐like fashion . With respect to the p‐block, DIP complexes are known for Groups 13, 14,, 15 and 16, centres.…”

Structural Features, Emission Analysis, and Covalency Comparison of Neodymium Acylpyrazolone Complexes using Oscillator Strengths, Covalency and Judd‐Ofelt Parameters**

“…[1][2][3][4][5][6][7][8] Due to their diverse variety of distinctive properties, they have found usage in NMR imaging, sensors, the lighting sector, fibres, display devices, lasers, and biological assays. [7] Due to the low impact of the environment on 4f electrons -which are shielded by 5s 2 and 5p 6 orbitals and ionspecific emission -lanthanides normally do not promote higher covalency with ligands. The distinctive 4f-4f electronic transition of Ln(III) is sharp because of the modest stokes shift brought on by the intrinsic nature of 4f electrons, which is protected from the 5s and 5p electrons and restricts the disruption of the 4f electrons by the ligand field.…”

“…The coordination chemistry of lanthanide ions has attracted a lot of interest over the past two decades due to their advantageous magnetic, thermal, cytotoxic, redox, and optical properties as well as their enormous coordination numbers, which enable highly complex and dimensional networks to be produced. [1][2][3][4][5][6][7][8] Due to their diverse variety of distinctive properties, they have found usage in NMR imaging, sensors, the lighting sector, fibres, display devices, lasers, and biological assays. [7] Due to the low impact of the environment on 4f electrons -which are shielded by 5s 2 and 5p 6 orbitals and ionspecific emission -lanthanides normally do not promote higher covalency with ligands.…”