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Cyano‐bridged Molecular Square: [Ni(iprtacn)Fe(phen) 2 (CN) 2 ] 2 (PF 6 ) 4 ·6CH 3 CN – Preparation, Structure, Magnetic Properties and Binding with DNA
Author(s) -
Yang YongSheng,
Ren Wei,
Yan ShiPing
Publication year - 2017
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201600435
Subject(s) - antiferromagnetism , crystallography , nickel , crystal structure , ion , chemistry , fluorescence , square pyramidal molecular geometry , metal , metal ions in aqueous solution , magnetic susceptibility , phenanthroline , stereochemistry , physics , condensed matter physics , organic chemistry , quantum mechanics
The cyano‐bridged molecular square Ni(iprtacn)] 2 [Fe(phen) 2 (CN) 2 ] 2 (PF 6 ) 4 · 6CH 3 CN ( 1 ) (iprtacn = 1,4,7‐triisopropyl‐1,4,7‐triazacyclononane, phen = 1, 10‐phenanthroline) was prepared and its crystal structure, magnetic properties, and binding with DNA were characterized. The four metal ions Ni II Fe II Ni II Fe II of the complex 1 are almost coplanar. Magnetic susceptibilities measured over the range of 2–300 K show weak antiferromagnetic interactions between the two nickel(II) ions; best fitting for the experimental data leads to J = –1.27 cm –1 . UV/Vis and fluorescence spectra show that the complex is able to displace DNA‐bound EB and bind to DNA with strong interactions.