We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Two Extended 5-Methyltetrazolate-Based Magnetic Complexes: Synthesis, Structure, and Magnetic Properties.
- Authors
Liu, Jing; Dong, Hui‐Ming; Yang, En‐Cui; Zhao, Xiao‐Jun
- Abstract
Two 5-methyl-tetrazolate (mtz-)-based paramagnetic metal coordination polymers, {[Cu2(H2O)2(mtz)(μ3-OH)(nip)] ·H2O} n ( 1) and [Cu(H2O)(mtz)2] n ( 2), were obtained in the presence and absence of aromatic 5-nitroisophathalate (nip2-) coligand by varying the preparation methods. Structural determinations reveal that 1 is a three-dimensional (3D) framework with corner-sharing triangular ribbons infinitely extended by ditopic nip2- connectors. In contrast, 2 is a coplanar (4,4) layer constructed from square-pyramidal CuII ions and μ-N1,N4-mtz- linkers, which is further assembled into a 3D supramolecular network by interlayer hydrogen-bonding interactions. Magnetically, spin-frustrated antiferromagnetic ordering is observed in the 3D framework of 1 and canted antiferromagnetic behavior with a slight spin-flop transition is presented in 2, which are structurally resulting from the locally Δ-ribbon in 1 and asymmetric magnetic superexchange mediated by the μ-N1,N4-mtz- bridge of 2.
- Subjects
MAGNETIC properties; PARAMAGNETIC materials; PARAMAGNETISM; COPPER; INTERMEDIATES (Chemistry); COORDINATION polymers
- Publication
Zeitschrift für Anorganische und Allgemeine Chemie, 2014, Vol 640, Issue 1, p201
- ISSN
0044-2313
- Publication type
Article
- DOI
10.1002/zaac.201300297