Structural and magnetic properties of dinuclear Cu(II) complexes featuring triazolyl-naphthalimide ligands. Issue 11 (2nd July 2016)

• Record Type: Journal Article
• Authors: Kitchen, Jonathan A.; Zhang, Ningjin; Carter, Anthony B.; Fitzpatrick, Anthony J.; Morgan, Grace G.
• Is Part Of: Journal of coordination chemistry. Volume 69:Issue 11/13(2016)
• Page Start: 2024
• Page End: 2037
• Publication Date: 2016-07-02
• Subjects: Naphthalimide -- Cu(II) -- magnetism -- triazole -- supramolecular; Coordination compounds -- Periodicals; 541.2242
• DOI: 10.1080/00958972.2016.1193168
• Languages: English
• ISSNs: 0095-8972

Abstract

Abstract: Naphthalimide-based ligands have received significant attention for their ability to act as secondary building units for metal containing network structures. The potentially bridging 1, 2, 4-triazole containing N -(1, 2, 4-triazolyl)-1, 8-naphthalimide (L 1 ) and N -(1, 2, 4-triazolyl)-4-dimethylamino-1, 8-naphthalimide (L 2 ) were prepared, characterized, and complexed with Cu(II) salts.L 1 resulted in crystallographically characterized dinuclear complexes, [Cu2 (L 1 )4 (NO3 )4 ] and [Cu2 (L 1 )2 (OAc)4 ] when reacted with Cu(NO3 )2 and Cu2 (OAc)4, respectively. Packing interactions are dominated by π ⋯ π and anion⋯ π interactions and gave rise to structure extension through weak supramolecular interactions. Solid state EPR and magnetism measurements on [Cu2 (L 1 )4 (NO3 )4 ] revealed the expected values for a non-magnetically coupled square-based pyramidal dimer structure, while [Cu2 (L 1 )2 (OAc)4 ] showed strong anti-ferromagnetic coupling ( J Cu–Cu = −185.6 cm −1 ). Abstract :