A novel family of triangular CoII2LnIII and CoII2YIII clusters by the employment of Di-2-Pyridyl ketone
The synthesis, structural characterization and magnetic study of novel CoII/4f and CoII/YIII clusters are described. In particular, the initial employment of di-2-pyridyl ketone, (py)2CO, in mixed metal Co/4f chemistry, provided access to four triangular clusters, [CoII2MIII{(py)2C(OEt)(O)}4(NO3)(H2...
| Authors: | ; ; ; ; ; |
|---|---|
| Format: | Article |
| Status: | Published version |
| Publication date: | 2019 |
| Country: | España |
| Institution: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repository: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:2445/137298 |
| Online Access: | https://hdl.handle.net/2445/137298 |
| Access Level: | Open access |
| Keyword: | Cobalt Magnetisme Clústers metàl·lics Metalls de terres rares Magnetism Metal clusters Rare earth metals |
| _version_ | 1878730418879987712 |
|---|---|
| author | Efthymiou, Constantinos G. |
| author2 | Fhuaráin, Áine Ní Mayans Ayats, Júlia Tasiopoulos, Anastasios Perlepes, Spyros P. Papatriantafyllopoulou, Constantina |
| author2_role | author author author author author |
| author_browse | Efthymiou, Constantinos G. Fhuaráin, Áine Ní Mayans Ayats, Júlia Papatriantafyllopoulou, Constantina Perlepes, Spyros P. Tasiopoulos, Anastasios |
| author_facet | Efthymiou, Constantinos G. Fhuaráin, Áine Ní Mayans Ayats, Júlia Tasiopoulos, Anastasios Perlepes, Spyros P. Papatriantafyllopoulou, Constantina |
| author_role | author |
| collection | Recercat. Dipósit de la Recerca de Catalunya |
| description | The synthesis, structural characterization and magnetic study of novel CoII/4f and CoII/YIII clusters are described. In particular, the initial employment of di-2-pyridyl ketone, (py)2CO, in mixed metal Co/4f chemistry, provided access to four triangular clusters, [CoII2MIII{(py)2C(OEt)(O)}4(NO3)(H2O)]2[M(NO3)5](ClO4)2 (M = Gd, 1; Dy, 2; Tb, 3; Y, 4), where (py)2C(OEt)(O)− is the monoanion of the hemiketal form of (py)2CO. Clusters 1-4 are the first reported Co/4f (1-3) and Co/Y (4) species bearing (py)2CO or its derivatives, despite the fact that over 200 metal clusters bearing this ligand have been reported so far. Variable-temperature, solid-state dc and ac magnetic susceptibility studies were carried out on 1-4 and revealed the presence of weak ferromagnetic exchange interactions between the metal ions (JCo-Co = +1.3 and +0.40 cm−1 in 1 and 4, respectively; JCo-Gd = +0.09 cm−1 in 1). The ac susceptibility studies on 2 revealed nonzero, weak out-of-phase (χ''M) signals below ~5 K. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_1beb4adf3759630a550e5bd111e1e2a0 |
| institution | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| instname_str | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:recercat.cat:2445/137298 |
| publishDate | 2019 |
| publishDateSort | 2019 |
| publisher | MDPI |
| publisherStr | MDPI |
| reponame_str | Recercat. Dipósit de la Recerca de Catalunya |
| spelling | A novel family of triangular CoII2LnIII and CoII2YIII clusters by the employment of Di-2-Pyridyl ketone Efthymiou, Constantinos G. Fhuaráin, Áine Ní Mayans Ayats, Júlia Tasiopoulos, Anastasios Perlepes, Spyros P. Papatriantafyllopoulou, Constantina Cobalt Magnetisme Clústers metàl·lics Metalls de terres rares Magnetism Metal clusters Rare earth metals The synthesis, structural characterization and magnetic study of novel CoII/4f and CoII/YIII clusters are described. In particular, the initial employment of di-2-pyridyl ketone, (py)2CO, in mixed metal Co/4f chemistry, provided access to four triangular clusters, [CoII2MIII{(py)2C(OEt)(O)}4(NO3)(H2O)]2[M(NO3)5](ClO4)2 (M = Gd, 1; Dy, 2; Tb, 3; Y, 4), where (py)2C(OEt)(O)− is the monoanion of the hemiketal form of (py)2CO. Clusters 1-4 are the first reported Co/4f (1-3) and Co/Y (4) species bearing (py)2CO or its derivatives, despite the fact that over 200 metal clusters bearing this ligand have been reported so far. Variable-temperature, solid-state dc and ac magnetic susceptibility studies were carried out on 1-4 and revealed the presence of weak ferromagnetic exchange interactions between the metal ions (JCo-Co = +1.3 and +0.40 cm−1 in 1 and 4, respectively; JCo-Gd = +0.09 cm−1 in 1). The ac susceptibility studies on 2 revealed nonzero, weak out-of-phase (χ''M) signals below ~5 K. MDPI https://hdl.handle.net/2445/137298 |
| spellingShingle | A novel family of triangular CoII2LnIII and CoII2YIII clusters by the employment of Di-2-Pyridyl ketone Efthymiou, Constantinos G. Cobalt Magnetisme Clústers metàl·lics Metalls de terres rares Magnetism Metal clusters Rare earth metals |
| status_str | publishedVersion |
| title | A novel family of triangular CoII2LnIII and CoII2YIII clusters by the employment of Di-2-Pyridyl ketone |
| title_full | A novel family of triangular CoII2LnIII and CoII2YIII clusters by the employment of Di-2-Pyridyl ketone |
| title_fullStr | A novel family of triangular CoII2LnIII and CoII2YIII clusters by the employment of Di-2-Pyridyl ketone |
| title_full_unstemmed | A novel family of triangular CoII2LnIII and CoII2YIII clusters by the employment of Di-2-Pyridyl ketone |
| title_short | A novel family of triangular CoII2LnIII and CoII2YIII clusters by the employment of Di-2-Pyridyl ketone |
| title_sort | A novel family of triangular CoII2LnIII and CoII2YIII clusters by the employment of Di-2-Pyridyl ketone |
| topic | Cobalt Magnetisme Clústers metàl·lics Metalls de terres rares Magnetism Metal clusters Rare earth metals |
| topic_facet | Cobalt Magnetisme Clústers metàl·lics Metalls de terres rares Magnetism Metal clusters Rare earth metals |
| url | https://hdl.handle.net/2445/137298 |