[Mn-18](2+) and [Mn-21](4+) single-molecule magnets

E C Sanudo, E K Brechin, C Boskovic, W Wernsdorfer, J Yoo, A Yamaguchi, T R Concolino, K A Abboud, A L Rheingold, H Ishimoto, D N Hendrickson, G Christou

Research output: Contribution to journalArticlepeer-review

Abstract

The synthesis and structural characterization of the two new Mn complexes [Mn18O14(O2CMe)(18)(heP)(4)(hepH)(2)(H2O)(2)](ClO4)(2) (1) and [Mn21O16(O2CMe)(16)(hmp)(6)(hmpH)(2)(pic)(2)(py)(H2O)](ClO4)(4) (3) are presented, together with a detailed study of their magnetic properties. Complex 1 possesses a ground-state spin of S = 13, and the ground-state spin for 3 is estimated to be S = 17/2 or 19/2. Both complexes 1 and 3 are new examples of single-molecule magnets (SMMs), displaying frequency-dependent out-of-phase AC signals, as well as magnetization vs. DC field hysteresis at temperatures below 1 K. Complex 1 straddles the classical/quantum interface by also displaying quantum tunneling of the magnetization (QTM). (C) 2003 Elsevier Science Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)2267-2271
Number of pages5
JournalPolyhedron
Volume22
Issue number14-17
DOIs
Publication statusPublished - 15 Jul 2003

Keywords

  • hysteresis
  • Mn clusters
  • quantum tunneling
  • single-molecule magnets
  • HIGH-SPIN MOLECULES
  • OXIDATION-STATE
  • MAGNETIZATION
  • MANGANESE
  • COMPLEXES
  • CLUSTER
  • FAMILY

Fingerprint

Dive into the research topics of '[Mn-18](2+) and [Mn-21](4+) single-molecule magnets'. Together they form a unique fingerprint.

Cite this