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Synthesis and Magnetic Properties of a Dimerized Trinuclear Ni String Complex, [Ni 6 Cl 2 (dpa) 8 ](I 5 ) 2 ยท0.25I 2 (dpa - = 2,2'-Dipyridylamide Anion).

Authors :
Aoki K
Otsubo K
Yoshida Y
Kimura Y
Sugimoto K
Kitagawa H
Source :
Inorganic chemistry [Inorg Chem] 2021 Nov 01; Vol. 60 (21), pp. 16029-16034. Date of Electronic Publication: 2021 Oct 19.
Publication Year :
2021

Abstract

Metal string complexes, linearly aligned transition metal arrays coordinated with the multidentate organic ligands, have gained much attention both in unique electronic/structural properties and in potential applications as conductive molecular nanowires. Here we report on a dimerized Ni <superscript>II</superscript> trinuclear complex, [Ni <subscript>6</subscript> Cl <subscript>2</subscript> (dpa) <subscript>8</subscript> ](I <subscript>5</subscript> ) <subscript>2</subscript> ·0.25I <subscript>2</subscript> (dpa <superscript>-</superscript> = 2,2'-dipyridylamide anion). X-ray structural analysis revealed that two trinuclear moieties are bridged by a Cl anion to form a dimerized string structure. This is the first example of two Ni string complexes that are connected. In the electronic absorption and Raman spectra, characteristic absorption bands and a vibration mode based on the dimer string structure were observed. In the solid state, dimer complexes align in one dimension in an MMMXMMMX (M = metal, X = halogen) manner, leading to the intra- and interdimer antiferromagnetic interactions.

Details

Language :
English
ISSN :
1520-510X
Volume :
60
Issue :
21
Database :
MEDLINE
Journal :
Inorganic chemistry
Publication Type :
Academic Journal
Accession number :
34665611
Full Text :
https://doi.org/10.1021/acs.inorgchem.1c02660