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Synthesis and Crystal Structure Studies of Metal Complexes

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

Deadline for manuscript submissions: 30 May 2025 | Viewed by 1185

Special Issue Editor


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Guest Editor
Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland
Interests: transition metal complexes; lanthanides complexes; X-ray analysis; inorganic chemistry; magnetic properties; luminescence

Special Issue Information

Dear Colleagues,

Have you ever wondered where science would be today if three great scientific achievements from the beginning of the 20th century were erased from the map of discoveries? In 1895, W.C. Roentgen discovered X-rays. Twenty years later, Laue noticed that these rays, passing through a crystal, are able to bend (scattered and diffracted), while Bragg and Wulff described the phenomenon of X-ray deflection on a crystal lattice. The common thread for the described achievements is three Nobel Prizes and the rapid development of crystallography and X-ray structural analysis. Thanks to X-ray structural analysis as a powerful scientific tool, it is possible to determine the crystal and molecular structure for each crystal, describe the coordination geometry of the metal center, its intermolecular interactions, etc. This, in turn, is a strong foundation for exploring the properties of compounds in every possible direction. Therefore, we eagerly invite researchers to contribute to this Special Issue of Molecules.

Dr. Anna Świtlicka
Guest Editor

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Keywords

  • synthesis
  • crystal structure
  • physical properties
  • X-ray diffraction
  • coordination complexes
  • d- and f-block metal atoms
  • functional materials
  • applications

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Published Papers (1 paper)

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Research

14 pages, 3035 KiB  
Article
Heteroleptic Complexes of Ruthenium Nitrosyl with Pyridine and Bypiridine—Synthesis and Photoisomerization
by Anastasiya O. Brovko, Natalya V. Kuratieva, Denis P. Pishchur and Gennadiy A. Kostin
Molecules 2024, 29(17), 4039; https://doi.org/10.3390/molecules29174039 - 26 Aug 2024
Viewed by 813
Abstract
The reaction of [RuNO(Py)2Cl2OH] with bipyridine in water–ethanol media results in trans-(NO, OH)-[RuNO(Py)(Bpy)ClOH]+ with an acceptable yield (60–70%) as hexafluorophosphate salt. Further treatment of the hydroxy-complex with concentrated HF quantitatively leads to trans-(NO, F)-[RuNO(Py)(Bpy)ClF]+. Despite the [...] Read more.
The reaction of [RuNO(Py)2Cl2OH] with bipyridine in water–ethanol media results in trans-(NO, OH)-[RuNO(Py)(Bpy)ClOH]+ with an acceptable yield (60–70%) as hexafluorophosphate salt. Further treatment of the hydroxy-complex with concentrated HF quantitatively leads to trans-(NO, F)-[RuNO(Py)(Bpy)ClF]+. Despite the chirality of both coordination spheres, the hexafluorophosphate salts crystallized as racemates. A NO-linkage isomerism study of the obtained complexes was performed at 80 K with different excitation wavelengths (405, 450, 488 nm). The most favorable wavelengths for the MS1 isomer (Ru-ON) formation were 405 and 450 nm, where the linkage isomer populations were 17% and 1% for [RuNO(Py)(Bpy)ClOH]PF6 and [RuNO(Py)(Bpy)ClF]PF6. The shift of the excitation wavelength to the green (488 nm) sharply decreased the MS1 population. The IR-spectral signatures of MS1 were registered. Reverse-transformation Ru-ON (MS1)-Ru-NO (GS) was investigated for [RuNO(Py)(Bpy)ClOH]PF6 using IR and DSC techniques that made it possible to determine the kinetic parameters (Ea and k0) and decay temperature. Full article
(This article belongs to the Special Issue Synthesis and Crystal Structure Studies of Metal Complexes)
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