Repozytorium
Wyszukaj
Kolekcje
Inne
Synthesis and structure of [2 x 2] molecular grid copper(II) and nickel(II) complexes with a new polydentate oxime-containing Schiff base ligand.
Autorzy
Rok wydania
2008
Czasopismo
Numer woluminu
47
Strony
5656-5665
DOI
10.1021/ic702375h
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
A new polynucleating oxime-containing Schiff base ligand, 2-hydroxyimino-N′-[1-(2-pyridyl)ethylidene]propanohydrazone (Hpop), has been synthesized and fully characterized. pH potentiometric, electrospray ionization mass spectrometric, and spectrophotometric studies of complex formation in H2O/DMSO solution confirmed the preference for polynuclear complexes with 3d metal ions. Single-crystal X-ray diffraction analyses of [Ni4(pop)4(HCOO)4]·7H2O (1), [Cu4(pop-H)4(HCOOH)4]·H2O (2), and [Cu4(pop-H)4(H2O)4]·9H2O (3) indicated the presence of a [2 × 2] molecular grid structure in all three compounds but distinct configurations of the cores: a head-to-tail ligand arrangement with overall S4 symmetry of the grid in the Cu2+ complexes as opposed to a head-to-head ligand arrangement with (noncrystallographic) C2 grid symmetry for the Ni2+ complex. A cryomagnetic study of 3 revealed intramolecular ferromagnetic exchange between copper ions in the grid, while in 1, antiferromagnetic interactions between the metal ions were observed.
Słowa kluczowe
Amides, Ions, Ligands, Metal, Molecules
Adres publiczny
https://doi.org/10.1021/ic702375h
Strona internetowa wydawcy
Podobne publikacje
Liposomal Binuclear Ir(III)–Cu(II) Coordination Compounds with Phosphino-Fluoroquinolone Conjugates for Human Prostate Carcinoma Treatment
Komarnicka Urszula K., Kozieł Sandra, Pucelik Barbara, Barzowska Agata, Siczek Miłosz, Malik Magdalena, Wojtala Daria, Niorettini Alessandro, Kyzioł Agnieszka, Sebastian Victor, Kopel Pavel, Caramori Stefano, Bieńko Alina
A new family of spin-crossover complexes based on a FeII(tetrazolyl)4(MeCN)2- type core.
Białońska Agata, Bronisz Robert, Weselski Marek
Crystal structure and characterization of manganese(II) carboxylates: 3D metal-organic frameworks.
Dobrzyńska Danuta, Jerzykiewicz Lucjan B., Jezierska Julia, Duczmal Marek