Synthesis, structure and magnetic properties of tetrakis-μ-carboxylato-bis(dodecylnicotinato)dicopper(II) complexes; crystal and molecular structure of the decyl carboxylate derivative
Dodecylnicotinate bis-adducts of binuclear copper carboxylates, of the general formula Cu2(O2CCn-1H2n-1)4(C 5H4NCOOC12H25)2, were synthesized for n = 10, 12, 14, 16, 18 and 20, and their crystal structure, thermal behavior and magnetic properties studied. The molecular structure of the decyl derivat...
Guardado en:
| Autores principales: | , , , , |
|---|---|
| Formato: | JOUR |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_01087681_v56_n4_p666_Rusjan |
| Aporte de: |
| id |
todo:paper_01087681_v56_n4_p666_Rusjan |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_01087681_v56_n4_p666_Rusjan2023-10-03T14:57:58Z Synthesis, structure and magnetic properties of tetrakis-μ-carboxylato-bis(dodecylnicotinato)dicopper(II) complexes; crystal and molecular structure of the decyl carboxylate derivative Rusjan, M. Chaia, Z. Piro, O.E. Guillon, D. Cukiernik, F.D. Dodecylnicotinate bis-adducts of binuclear copper carboxylates, of the general formula Cu2(O2CCn-1H2n-1)4(C 5H4NCOOC12H25)2, were synthesized for n = 10, 12, 14, 16, 18 and 20, and their crystal structure, thermal behavior and magnetic properties studied. The molecular structure of the decyl derivative has been determined from single-crystal X-ray diffraction data. The dimer is centrosymmetric with the CuII ions in a square-pyramidal coordination with four O-alkyl O atoms [average d(Cu - O) 1.960 (6) Å] in the basal plane and the nicotine N atom at apical positions [d(Cu - N) 2.183 (3) Å]. The copper ions, 2.615 (1) Å apart, are bridged by four O-alkyl carboxylate groups. Both the n = 20 and n = 18 homologues exhibit lamellar phases, which can be related to the supramolecular arrangement found in the n = 10 derivative. The magnetic behavior of the decyl and octadecyl dimers was studied in the 2-300 K temperature range. They exhibit a strong intramolecular antiferromagnetic interaction (Cu-Cu superexchange coupling constant J = -347 cm-1 for the decyl derivative), which can be attributed to a large overlap of the metal 3d orbitals and the oxygen lone pair orbitals of the linking carboxylate groups. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01087681_v56_n4_p666_Rusjan |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
Dodecylnicotinate bis-adducts of binuclear copper carboxylates, of the general formula Cu2(O2CCn-1H2n-1)4(C 5H4NCOOC12H25)2, were synthesized for n = 10, 12, 14, 16, 18 and 20, and their crystal structure, thermal behavior and magnetic properties studied. The molecular structure of the decyl derivative has been determined from single-crystal X-ray diffraction data. The dimer is centrosymmetric with the CuII ions in a square-pyramidal coordination with four O-alkyl O atoms [average d(Cu - O) 1.960 (6) Å] in the basal plane and the nicotine N atom at apical positions [d(Cu - N) 2.183 (3) Å]. The copper ions, 2.615 (1) Å apart, are bridged by four O-alkyl carboxylate groups. Both the n = 20 and n = 18 homologues exhibit lamellar phases, which can be related to the supramolecular arrangement found in the n = 10 derivative. The magnetic behavior of the decyl and octadecyl dimers was studied in the 2-300 K temperature range. They exhibit a strong intramolecular antiferromagnetic interaction (Cu-Cu superexchange coupling constant J = -347 cm-1 for the decyl derivative), which can be attributed to a large overlap of the metal 3d orbitals and the oxygen lone pair orbitals of the linking carboxylate groups. |
| format |
JOUR |
| author |
Rusjan, M. Chaia, Z. Piro, O.E. Guillon, D. Cukiernik, F.D. |
| spellingShingle |
Rusjan, M. Chaia, Z. Piro, O.E. Guillon, D. Cukiernik, F.D. Synthesis, structure and magnetic properties of tetrakis-μ-carboxylato-bis(dodecylnicotinato)dicopper(II) complexes; crystal and molecular structure of the decyl carboxylate derivative |
| author_facet |
Rusjan, M. Chaia, Z. Piro, O.E. Guillon, D. Cukiernik, F.D. |
| author_sort |
Rusjan, M. |
| title |
Synthesis, structure and magnetic properties of tetrakis-μ-carboxylato-bis(dodecylnicotinato)dicopper(II) complexes; crystal and molecular structure of the decyl carboxylate derivative |
| title_short |
Synthesis, structure and magnetic properties of tetrakis-μ-carboxylato-bis(dodecylnicotinato)dicopper(II) complexes; crystal and molecular structure of the decyl carboxylate derivative |
| title_full |
Synthesis, structure and magnetic properties of tetrakis-μ-carboxylato-bis(dodecylnicotinato)dicopper(II) complexes; crystal and molecular structure of the decyl carboxylate derivative |
| title_fullStr |
Synthesis, structure and magnetic properties of tetrakis-μ-carboxylato-bis(dodecylnicotinato)dicopper(II) complexes; crystal and molecular structure of the decyl carboxylate derivative |
| title_full_unstemmed |
Synthesis, structure and magnetic properties of tetrakis-μ-carboxylato-bis(dodecylnicotinato)dicopper(II) complexes; crystal and molecular structure of the decyl carboxylate derivative |
| title_sort |
synthesis, structure and magnetic properties of tetrakis-μ-carboxylato-bis(dodecylnicotinato)dicopper(ii) complexes; crystal and molecular structure of the decyl carboxylate derivative |
| url |
http://hdl.handle.net/20.500.12110/paper_01087681_v56_n4_p666_Rusjan |
| work_keys_str_mv |
AT rusjanm synthesisstructureandmagneticpropertiesoftetrakismcarboxylatobisdodecylnicotinatodicopperiicomplexescrystalandmolecularstructureofthedecylcarboxylatederivative AT chaiaz synthesisstructureandmagneticpropertiesoftetrakismcarboxylatobisdodecylnicotinatodicopperiicomplexescrystalandmolecularstructureofthedecylcarboxylatederivative AT pirooe synthesisstructureandmagneticpropertiesoftetrakismcarboxylatobisdodecylnicotinatodicopperiicomplexescrystalandmolecularstructureofthedecylcarboxylatederivative AT guillond synthesisstructureandmagneticpropertiesoftetrakismcarboxylatobisdodecylnicotinatodicopperiicomplexescrystalandmolecularstructureofthedecylcarboxylatederivative AT cukiernikfd synthesisstructureandmagneticpropertiesoftetrakismcarboxylatobisdodecylnicotinatodicopperiicomplexescrystalandmolecularstructureofthedecylcarboxylatederivative |
| _version_ |
1807319918896480256 |