Repozytorium
Wyszukaj
Kolekcje
Inne
Synthesis and molecular structures of CuII 15-metallacrown-5 complexes with encapsulated CaII, PrIII and NdIII ions.
Autorzy
Rok wydania
2015
Czasopismo
Zeitschrift für Anorganische und Allgemeine Chemie
Numer woluminu
641
Strony
2326-2332
DOI
10.1002/zaac.201500255
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Three complexes [Ca(ClO4)(H2O)Cu5(o‐picHA‐2H)5(H2O)]ClO4 (1), [Pr(NO3)2(py)Cu5(o‐picHA‐2H)5(py)5]ClO4 (2), and [Nd(NO3)(H2O)(py)Cu5(o‐picHA‐2H)5(py)5](ClO4)2·5py (3) (o‐picHA = 2‐picolinehydroxamic acid) were synthesized in order to retrace structural trends caused by the change of the ionic radius of the central metal ion as well as to assess the effect of the axial ligands on the arrangement of metallacrowns. The complexes were characterized by elemental analysis, ESI‐mass spectrometry, IR spectroscopy, and single‐crystal X‐ray analysis. The heterometallic complexes have 15‐MC‐5 molecular topology with CaII or LnIII ion in the center of the metallamacrocyclic cavity. The Ca–O and Ln–O bond lengths follow the trend of changes of the corresponding metal ionic radii. While the CaII complex cation (without axial ligands) in 1 is almost flat, the LnIII containing cations in 2 and 3 have a “partially opened umbrella“ environment.
Słowa kluczowe
Metallacrowns, Hydroxamic acids, crystal structure, Polynuclear complexes, Lanthanides
Adres publiczny
http://dx.doi.org/10.1002/zaac.201500255
Strona internetowa wydawcy
Podobne publikacje
Synthesis and reactivity of copper(II) metallacrowns with (S)-phenylalanine and 2-picolinehydroxamic acids.
Seda Sabry H., Janczak Jan, Lisowski Jerzy
The mass spectrometric study on aminohydroxamic acids-based metallacrowns.
Cal Marta, Żabska Wanda, Stefanowicz Piotr
First examples of carbacylamidophosphate pentanuclear hydroxo-complexes : synthesis, structure, luminescence and magnetic properties.
Kariaka Nataliia S., Rusanova Julia A., Smola Sergii S., Kolotilov Sergey V., Znovjyak Katerina O., Weselski Marek, Sliva Tatiana Yu., Amirkhanov Vladimir M.