• Issue

    European Journal of Inorganic Chemistry: Volume 2021, Issue 19

    May 20, 2021

Cover Pictures

Free Access

Front Cover: Syntheses, Molecular Structures, and Countercation-Induced Structural Transformation of Monomeric α-Keggin-Type Polyoxotungstate-Coordinated Mono- and Dipalladium(II) Complexes (Eur. J. Inorg. Chem. 19/2021)

  • Pages: 1815
  • First Published: 27 April 2021
Description unavailable

The Front Cover shows a vase (mono-lacunary α-Keggin polyoxotungstate) with one flower (N,N’-dimethylpiperazine palladium species) or two flowers (two ethylenediamine palladium species). The mono-lacunary α-Keggin polyoxotungstate structure of the mono-palladium complex undergoes a unique structural transformation to the di-lacunary γ-Keggin polyoxotungstate Cs7[γ-PW10O36] upon the addition of cesium chloride. More information can be found in the Full Paper by C. N. Kato and co-workers.

Full Papers

Syntheses, Molecular Structures, and Countercation-Induced Structural Transformation of Monomeric α-Keggin-Type Polyoxotungstate-Coordinated Mono- and Dipalladium(II) Complexes

  • Pages: 1816-1827
  • First Published: 26 March 2021
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We obtained monomeric α-Keggin-type polyoxotungstate-coordinated mono- and di-palladium(II) complexes, i. e., Cs5[α-PW11O39{PdII(Me2ppz)}] ⋅ 5H2O (Cs-1) (Me2ppz=N,N’-dimethylpiperazine), [(CH3)4N]4H[α-PW11O39{PdII(Me2ppz)}] ⋅ 8H2O (TMA-1), and Cs2.5H0.5[α-PW11O39{PdII(en)}2] ⋅ 7H2O (en=ethylenediamine) (Cs-2). A unique structural transformation of the mono-lacunary α-Keggin structure of Cs-1 to the di-lacunary γ-Keggin polyoxotungstate Cs7[γ-PW10O36] was observed upon addition of cesium chloride.

Open Access

New Strategies towards Bulky Bis(alkyl)- and Bis(silyl)- Substituted Polysilanes as Precursor Molecules for Desilylation and Dechlorination Experiments

  • Pages: 1828-1835
  • First Published: 16 April 2021
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New synthetic pathways towards a series of neutral bulky Bis(alkyl)- and Bis(silyl)- substituted polysilanes are described. Their reactivity was investigated by desilylation and dechlorination experiments. All isolated compounds were characterized by multinuclear NMR spectroscopy, mass spectrometry and X-ray crystallography.

Interlayer Silylation of Layered Octosilicate with Organoalkoxysilanes: Effects of Tetrabutylammonium Fluoride as a Catalyst and the Functional Groups of Silanes

  • Pages: 1836-1845
  • First Published: 04 April 2021
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Interlayer silylation of layered octosilicate with organotriethoxysilane was enhanced by the addition of TBAF. The F in TBAF attacks the silicon in alkoxysilanes, which increases the reactivity with SiOH groups on the layer surface. The effect of F on silylation depends on the kind of functional organic group of organotriethoxysilanes, because the interlayer accessibility is varied with functional groups.

Open Access

Solid-State Synthesis of (Ph4P)MI3 (M=Eu2+, Sr2+, Sn2+) and Investigation of Photoluminescence Properties of Green Emitting Phosphor

  • Pages: 1846-1851
  • First Published: 01 April 2021
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Solid-state preparation of hybrid compounds (Ph4P)MI3 (M=Sr2+, Eu2+ and Sn2+) was performed. The new materials (Ph4P)SrI3 and (Ph4P)EuI3 adopt the trigonal structure urn:x-wiley:14341948:media:ejic202100059:ejic202100059-math-0002 while the (Ph4P)SnI3 crystallize in monoclinic structure urn:x-wiley:14341948:media:ejic202100059:ejic202100059-math-0003 . The novel compound (Ph4P)EuI3 was found to display bright green emission peaked at 536 nm. The radiative decay time determined upon excitation at 536 nm is of 508 ns.

3D Carambola-Like CuO/TiO2 Nanotube Heterostructures via Low-Temperature Solution Process for Photocatalytic Activity

  • Pages: 1852-1857
  • First Published: 05 May 2021
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A novel 3D carambola-like CuO/TiO2 nanotube heterostructures are synthesized. The as prepared CuO/TiO2 heterostructures exhibit higher photocatalytic performance than TiO2 nanotubes. This is mainly because the unique 3D heterostructure not only offers appropriate space to allow multiple reflections of light, but it can also effectively inhibit the recombination of electron-hole pairs.

Open Access

Effect of the Additional Carboxyl Group in Half-Sandwich Organometallic 2,4-Dipicolinate Complexes on Solution Speciation and Structure

  • Pages: 1858-1868
  • First Published: 01 April 2021
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Solution stability and structure of Ru(II)(η6-toluene), Ru(II)(η6-p-cymene) and Rh(III)(η5-C5Me5) complexes of 2,4-dipicolinic acid were determined and compared to those of 2-picolinic acid revealing higher stability, and different reactivity towards chloride, bromide, 1-methylimidazole and guanosine. Three structures including a trinuclear triangular complex were resolved by single crystal X-ray diffraction.

Open Access

The Reactivity of Multidentate Schiff Base Ligands Derived from Bi- and Terphenyl Polyamines towards M(II) (M=Ni, Cu, Zn, Cd) and M(III) (M=Co, Y, Lu)

  • Pages: 1869-1889
  • First Published: 26 March 2021
Description unavailable

Metal complexes of Schiff base ligands derived from a m-terphenyl-2,2’,2’’-triamine were synthesized and studied by means of NMR spectroscopy and single-crystal X-ray diffraction analysis. The ligands were found to act as tetradentate, pentadentate, or hexadentate ligands, depending on the electronic properties of the substituents of the ligand, as well as the size and valency of the metal center.

Magnesium and Calcium Complexes of ArBIG-bian and Their Reactivity towards CO2 (ArBIG-bian=1,2-bis[(2,6-dibenzhydryl-4-methylphenyl)imino]acenaphthene)

  • Pages: 1890-1896
  • First Published: 08 April 2021
Description unavailable

Synthesis of magnesium and calcium complexes [(ArBIG-bian)ML2] (M=Mg, L=thf; M=Ca, L=dme) supported by sterically hindered ArBIG-bian ligands and their use for the capture of carbon dioxide have been reported. Bisamides readily react with CO2 to form carbamate derivatives. Product [(ArBIG-bian)(CO2)2Ca(dme)2] is the first calcium carbamate prepared by reaction of a calcium amide with carbon dioxide.

Dipyrromethane-Based PGeP Pincer Methylgermyl and Methoxidogermyl Nickel and Palladium Complexes

  • Pages: 1897-1902
  • First Published: 29 March 2021
Description unavailable

While LiOMe is only able to substitute the Ge−Cl chlorido ligand of the PGeP pincer germyl complexes 1Ni and 1Pd, LiMe is able to sequentially substitute first the Ge−Cl and then the M−Cl chlorido ligands. The regioselectivity of these reactions is orbital-controlled because the LUMO of the dichlorido complexes contains an important contribution of the Ge atom.