Jump to main content
Jump to site search

Issue 11, 2009
Previous Article Next Article

Rational design of cyanide-bridged heterometallic M(I)–Mn(II) (M = Ag, Au) one-dimensional chain complexes: synthesis, crystal structures and magnetic properties

Author affiliations

Abstract

Two mononuclear seven-coordinated macrocycle Mn(II) compounds and four new cyanide-bridged MI–MnII (M = Ag, Au) one-dimensional chain complexes have been synthesized and crystallographically characterized: [Mn(L1)Cl2] · H2O (1), [Mn(L2)Cl2]·H2O (2), [Ag(CN)2Mn(L1)][Ag(CN)2] (3), [Ag(CN)2Mn(L2)][Ag(CN)2] · 1.5H2O (4), [Au(CN)2Mn(L1)][Au(CN)2] (5) and [Au(CN)2Mn(L2)][Au(CN)2] · 1.5H2O (6). The structure of the one-dimensional complexes consists of alternating units of [Mn(L)]2+ and [M(CN)2], generating a cyanide-bridged cationic polymeric chain with [M(CN)2] as the counteranion. In all complexes, the coordination geometry of manganese ion is a slightly distorted pentagonal-bipyrimidal with the cyanide nitrogen atoms at the trans positions and N5 or N3O2 coordinating mode in the equatorial plane from ligand L1 or L2. Investigation over magnetic properties of these four one-dimensional complexes reveals the whole very weak antiferromagnetic interaction between neighbouring Mn(II) ions bridged by the long NC–M–CN unit. A best-fit to the magnetic susceptibility of these complexes leads to the magnetic coupling constant of J = −0.065(2), −0.23(3), −0.15(6) and −0.13(5) cm−1 for complex 3, 4, 5, and 6, respectively.

Graphical abstract: Rational design of cyanide-bridged heterometallic M(I)–Mn(II) (M = Ag, Au) one-dimensional chain complexes: synthesis, crystal structures and magnetic properties

Back to tab navigation

Supplementary files

Publication details

The article was received on 16 Feb 2009, accepted on 08 Jul 2009 and first published on 28 Jul 2009


Article type: Paper
DOI: 10.1039/B903174J
Citation: CrystEngComm, 2009,11, 2447-2451
  •   Request permissions

    Rational design of cyanide-bridged heterometallic M(I)–Mn(II) (M = Ag, Au) one-dimensional chain complexes: synthesis, crystal structures and magnetic properties

    D. Zhang, H. Wang, L. Tian, J. Jiang and Z. Ni, CrystEngComm, 2009, 11, 2447
    DOI: 10.1039/B903174J

Search articles by author

Spotlight

Advertisements