Homo- and Hetero-Oligonuclear Complexes of Platinum Group Metals (PGM) Coordinated by Imine Schiff Base Ligands
Chemistry of Schiff base (SB) ligands began in 1864 due to the discovery made by Hugo Schiff (Schiff, H., <i>Justus Liebigs Ann. der Chemie</i> 1864, <i>131</i> (1), 118–119). However, there is still a vivid interest in coordination compounds based on imine ligands. The aim o...
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MDPI AG
2020-05-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/21/10/3493 |
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| author | Barbara Miroslaw |
| author_facet | Barbara Miroslaw |
| author_sort | Barbara Miroslaw |
| collection | DOAJ |
| description | Chemistry of Schiff base (SB) ligands began in 1864 due to the discovery made by Hugo Schiff (Schiff, H., <i>Justus Liebigs Ann. der Chemie</i> 1864, <i>131</i> (1), 118–119). However, there is still a vivid interest in coordination compounds based on imine ligands. The aim of this paper is to review the most recent concepts on construction of homo- and hetero-oligonuclear Schiff base coordination compounds narrowed down to the less frequently considered complexes of platinum group metals (PGM). The combination of SB and PGM in oligonuclear entities has several advantages over mononuclear or polynuclear species. Such complexes usually exhibit better electroluminescent, magnetic and/or catalytic properties than mononuclear ones due to intermetallic interactions and frequently have better solubility than polymers. Various construction strategies of oligodentate imine ligands for coordination of PGM are surveyed including simple imine ligands, non-innocent 1,2-diimines, chelating imine systems with additional N/O/S atoms, classic N<sub>2</sub>O<sub>2</sub>-compartmental Schiff bases and their modifications resulting in acyclic fused ligands, macrocycles such as calixsalens, metallohelical structures, nano-sized molecular wheels and hybrid materials incorporating mesoionic species. Co-crystallization and formation of metallophilic interactions to extend the mononuclear entities up to oligonuclear coordination species are also discussed. |
| first_indexed | 2024-03-10T19:48:38Z |
| format | Article |
| id | doaj.art-655655592e814b79b5f4e14bccd34e7f |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-10T19:48:38Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-655655592e814b79b5f4e14bccd34e7f2023-11-20T00:33:57ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672020-05-012110349310.3390/ijms21103493Homo- and Hetero-Oligonuclear Complexes of Platinum Group Metals (PGM) Coordinated by Imine Schiff Base LigandsBarbara Miroslaw0Department of General and Coordination Chemistry and Crystallography, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, Pl. Marii Curie-Sklodowskiej 3, 20-031 Lublin, PolandChemistry of Schiff base (SB) ligands began in 1864 due to the discovery made by Hugo Schiff (Schiff, H., <i>Justus Liebigs Ann. der Chemie</i> 1864, <i>131</i> (1), 118–119). However, there is still a vivid interest in coordination compounds based on imine ligands. The aim of this paper is to review the most recent concepts on construction of homo- and hetero-oligonuclear Schiff base coordination compounds narrowed down to the less frequently considered complexes of platinum group metals (PGM). The combination of SB and PGM in oligonuclear entities has several advantages over mononuclear or polynuclear species. Such complexes usually exhibit better electroluminescent, magnetic and/or catalytic properties than mononuclear ones due to intermetallic interactions and frequently have better solubility than polymers. Various construction strategies of oligodentate imine ligands for coordination of PGM are surveyed including simple imine ligands, non-innocent 1,2-diimines, chelating imine systems with additional N/O/S atoms, classic N<sub>2</sub>O<sub>2</sub>-compartmental Schiff bases and their modifications resulting in acyclic fused ligands, macrocycles such as calixsalens, metallohelical structures, nano-sized molecular wheels and hybrid materials incorporating mesoionic species. Co-crystallization and formation of metallophilic interactions to extend the mononuclear entities up to oligonuclear coordination species are also discussed.https://www.mdpi.com/1422-0067/21/10/3493oligonuclear complexesplatinum group metalsPGMSchiff baseimine ligandcoordination compound |
| spellingShingle | Barbara Miroslaw Homo- and Hetero-Oligonuclear Complexes of Platinum Group Metals (PGM) Coordinated by Imine Schiff Base Ligands International Journal of Molecular Sciences oligonuclear complexes platinum group metals PGM Schiff base imine ligand coordination compound |
| title | Homo- and Hetero-Oligonuclear Complexes of Platinum Group Metals (PGM) Coordinated by Imine Schiff Base Ligands |
| title_full | Homo- and Hetero-Oligonuclear Complexes of Platinum Group Metals (PGM) Coordinated by Imine Schiff Base Ligands |
| title_fullStr | Homo- and Hetero-Oligonuclear Complexes of Platinum Group Metals (PGM) Coordinated by Imine Schiff Base Ligands |
| title_full_unstemmed | Homo- and Hetero-Oligonuclear Complexes of Platinum Group Metals (PGM) Coordinated by Imine Schiff Base Ligands |
| title_short | Homo- and Hetero-Oligonuclear Complexes of Platinum Group Metals (PGM) Coordinated by Imine Schiff Base Ligands |
| title_sort | homo and hetero oligonuclear complexes of platinum group metals pgm coordinated by imine schiff base ligands |
| topic | oligonuclear complexes platinum group metals PGM Schiff base imine ligand coordination compound |
| url | https://www.mdpi.com/1422-0067/21/10/3493 |
| work_keys_str_mv | AT barbaramiroslaw homoandheterooligonuclearcomplexesofplatinumgroupmetalspgmcoordinatedbyimineschiffbaseligands |