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Inorganic Chemistry in Asia, 2nd Edition
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Inorganic Chemistry in Asia, 2nd Edition

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Inorganic Chemistry".

Deadline for manuscript submissions: 30 June 2026 | Viewed by 1835

Special Issue Editor

Prof. Dr. Takashiro Akitsu

E-Mail Website
Guest Editor
Department of Chemistry, Faculty of Science, Tokyo University of Science, Tokyo, Japan
Interests: inorganic chemistry; coordination chemistry; schiff base; crystallography
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear colleagues,

We are pleased to announce the second edition of the Special Issue "Inorganic Chemistry in Asia" of Molecules.

Following the success of the first edition, this Special Issue will also present a high-quality collection of work from scientists in Asian countries, as well as contributions from other countries concerning the advances in inorganic chemistry in Asia (both original research articles and comprehensive review papers are welcome).

This Special Issue will discuss new knowledge or cutting-edge developments in the broadly defined inorganic chemistry research field, including coordination chemistry, organometallic chemistry, solid-state chemistry, bioinorganic chemistry, nuclear- and radiochemistry, analytical chemistry, etc. This Special Issue is a forum for the exchange of research findings and innovative ideas in the field.

Dr. Takashiro Akitsu
Guest Editor

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • inorganic chemistry
  • coordination chemistry
  • organometallic chemistry
  • solid-state chemistry
  • bioinorganic chemistry
  • nuclear- and radiochemistry
  • theoretical calculation

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Related Special Issue

Published Papers (3 papers)

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Research

17 pages, 1679 KB  
Article
Phase Separation Phenomena in Lightly Cu-Doped A-Site-Ordered Quadruple Perovskite NdMn7O12
by Alexei A. Belik, Ran Liu and Kazunari Yamaura
Molecules 2025, 30(23), 4561; https://doi.org/10.3390/molecules30234561 - 26 Nov 2025
Viewed by 136
Abstract
A-site-ordered quadruple perovskite manganites, AMn7O12, show many interesting physical phenomena, including orbital and spin modulations, spin-induced multiferroic properties, and competitions between different magnetic ground states. Doping with Cu2+ can result in colossal magnetoresistance properties, ferrimagnetism, and additional structural [...] Read more.
A-site-ordered quadruple perovskite manganites, AMn7O12, show many interesting physical phenomena, including orbital and spin modulations, spin-induced multiferroic properties, and competitions between different magnetic ground states. Doping with Cu2+ can result in colossal magnetoresistance properties, ferrimagnetism, and additional structural modulations producing electric–dipole helicoidal textures. Many previous works have focused on large-concentration doping, reaching ACu3Mn4O12 compositions. Small-concentration doping has been investigated in a limited number of systems, e.g., in BiCuxMn7−xO12. In this work, we investigated solid solutions of NdCuxMn7−xO12 with x = 0.1, 0.2, and 0.3, prepared at 6 GPa and 1500 K. Specific heat measurements detected three magnetic transitions at x = 0 (at TN3 = 9 K, TN2 = 12 K, and TN1 = 84 K) and two transitions at x = 0.1 (at TN2 = 10 K and TN1 = 78 K), while only one transition was found at x = 0.2 (TN1 = 72 K) and x = 0.3 (TN1 = 65 K). Differential scanning calorimetry (DSC) measurements showed sharp and strong peaks near TOO = 664 K at x = 0, corresponding to an orbital-order (OO) structural transition from I2/m to Im-3 symmetry. DSC anomalies were significantly broadened and their intensities were significantly reduced at x = 0.1–0.3, and structural transitions were observed near TOO = 630 K at x = 0.1, TOO = 600 K at x = 0.2, and TOO = 570 K at x = 0.3. The x = 0.1 sample clearly showed double-peak features on the DSC curves near TOO because of the presence of two close phases. High-resolution synchrotron powder X-ray diffraction studies gave strong evidence that phase separation phenomena took place in the x = 0.1–0.3 samples, where two I2/m phases with an approximate ratio of 1:1 were present (e.g., a = 7.47143 Å, b = 7.36828 Å, c = 7.46210 Å, and β = 90.9929° for one phase and a = 7.46596 Å, b = 7.37257 Å, c = 7.45756 Å, and β = 90.9328° for the second phase at x = 0.3). The Curie–Weiss temperature changed from negative (for x = 0, 0.1, and 0.2) to positive (for x = 0.3). TOO, TN1, the Curie–Weiss temperature, and magnetization (at 5 K and 70 kOe) changed almost linearly with x. Full article
(This article belongs to the Special Issue Inorganic Chemistry in Asia, 2nd Edition)
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15 pages, 2152 KB  
Article
Iron(II) and Manganese(II) Coordination Chemistry Ligated by Coplanar Tridentate Nitrogen-Donor Ligand, 2,6-bis(5-isopropyl-1H-pyrazol-3-yl)pyridine
by Kiyoshi Fujisawa, Yurika Minakawa and David James Young
Molecules 2025, 30(20), 4128; https://doi.org/10.3390/molecules30204128 - 19 Oct 2025
Viewed by 476
Abstract
Coplanar tridentate nitrogen-donor ligands have been extensively employed to stabilize transition metal complexes by chelation. Some complexes exhibit interesting structures and photoluminescent properties. In this work, 2,6-bis(5-isopropyl-1H-pyrazole-3-yl)pyridine (denoted as L), its iron(II) and manganese(II) dichlorido complexes, and its bis-chelate iron(II) [...] Read more.
Coplanar tridentate nitrogen-donor ligands have been extensively employed to stabilize transition metal complexes by chelation. Some complexes exhibit interesting structures and photoluminescent properties. In this work, 2,6-bis(5-isopropyl-1H-pyrazole-3-yl)pyridine (denoted as L), its iron(II) and manganese(II) dichlorido complexes, and its bis-chelate iron(II) complexes, viz. [FeCl2(L)]·2(MeOH) and [MnCl2(L)]·2(MeOH), and [Fe(L)2](PF6) ·5(thf), respectively, were synthesized and characterized by single-crystal X-ray structural analysis. These solid-state structures contained N–H donors that formed hydrogen bonds with the coordinated halogenide ions and lattice solvent molecules, methanol or tetrahydrofuran. The iron(II) and manganese(II) dichlorido complexes [FeCl2(L)]·2(MeOH) and [MnCl2(L)]·2(MeOH) displayed distorted trigonal pyramidal structures in the solid state. However, [FeCl2(L)]·2(MeOH) was not stable in methanol and formed the bis-chelate iron(II) complex [Fe(L)2](FeCl4). Therefore, the bis-chelate iron(II) complex [Fe(L)2](PF6)·5(thf) was also synthesized and structurally and spectroscopically authenticated. Full article
(This article belongs to the Special Issue Inorganic Chemistry in Asia, 2nd Edition)
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Graphical abstract

19 pages, 4784 KB  
Article
Investigation of the Adsorption and Reactions of Methyl Radicals on Transition Metal (M = Co, Ni, Pd, Pt) (111) Surfaces in Aqueous Suspensions
by Pankaj Kumar, Dan Meyerstein, Amir Mizrahi and Haya Kornweitz
Molecules 2025, 30(15), 3065; https://doi.org/10.3390/molecules30153065 - 22 Jul 2025
Viewed by 946
Abstract
The DFT method was used to evaluate the adsorption of methyl radicals and the evolution of ethane on the M(111) (M = Co, Ni, Pd, Pt) surfaces, eight metal atoms, in aqueous medium. A maximum of five and four radicals can be adsorbed [...] Read more.
The DFT method was used to evaluate the adsorption of methyl radicals and the evolution of ethane on the M(111) (M = Co, Ni, Pd, Pt) surfaces, eight metal atoms, in aqueous medium. A maximum of five and four radicals can be adsorbed on Co(111) and Ni(111), respectively, and six on Pd(111) and Pt(111) (top site). The ethane evolution occurs via the Langmuir–Hinshelwood (LH) or Eley–Rideal (ER) mechanisms. The production of ethane through the interaction of two adsorbed radicals is thermodynamically feasible for high coverage ratios on the four surfaces; however, kinetically, it is feasible at room temperature only on Co(111) at a coverage of (5/5) and on Pd(111) at a coverage ratio of 4/6, 5/6, and 6/6. Ethane production occurs via the ER mechanism: a collision with solvated methyl radical produces either C2H6 or CH2∗+CH4(aq). On Pd(111) the product is only C2H6, on Pt(111), both products (C2H6 or CH2∗) are plausible, and on Co(111) and Ni(111), only CH2∗+CH4(aq) is produced. Further reactions of CH2∗ with CH2∗ or CH3∗ to give C2H4∗ or C2H5∗ are thermodynamically plausible only on Pt(111); however, they are very slow due to high energy barriers, 1.48 and 1.36 eV, respectively. Full article
(This article belongs to the Special Issue Inorganic Chemistry in Asia, 2nd Edition)
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