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| Hauptseite > Publikationsdatenbank > The FeIII[FeIII(L1)2]3 star-type single-molecule magnet > print |
| Hauptseite > Publikationsdatenbank > The FeIII[FeIII(L1)2]3 star-type single-molecule magnet > print |
| 001 | 51533 | ||
| 005 | 20180211161944.0 | ||
| 024 | 7 | _ | |2 pmid |a pmid:16751895 |
| 024 | 7 | _ | |2 DOI |a 10.1039/b515980f |
| 024 | 7 | _ | |2 WOS |a WOS:000238049000017 |
| 037 | _ | _ | |a PreJuSER-51533 |
| 041 | _ | _ | |a eng |
| 082 | _ | _ | |a 540 |
| 084 | _ | _ | |2 WoS |a Chemistry, Inorganic & Nuclear |
| 100 | 1 | _ | |a Saalfrank, R. W. |b 0 |0 P:(DE-HGF)0 |
| 245 | _ | _ | |a The FeIII[FeIII(L1)2]3 star-type single-molecule magnet |
| 260 | _ | _ | |a London |b Soc. |c 2006 |
| 300 | _ | _ | |a 2865 - 2874 |
| 336 | 7 | _ | |a Journal Article |0 PUB:(DE-HGF)16 |2 PUB:(DE-HGF) |
| 336 | 7 | _ | |a Output Types/Journal article |2 DataCite |
| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
| 336 | 7 | _ | |a JOURNAL_ARTICLE |2 ORCID |
| 336 | 7 | _ | |a article |2 DRIVER |
| 440 | _ | 0 | |a Dalton Transactions |x 1477-9226 |0 15301 |v 23 |
| 500 | _ | _ | |a Record converted from VDB: 12.11.2012 |
| 520 | _ | _ | |a Star-shaped complex [Fe(III)[Fe(III)(L1)2]3] (3) was synthesized starting from N-methyldiethanolamine H2L1 (1) and ferric chloride in the presence of sodium hydride. For 3, two different high-spin iron(III) ion sites were confirmed by Mössbauer spectroscopy at 77 K. Single-crystal X-ray structure determination revealed that 3 crystallizes with four molecules of chloroform, but, with only three molecules of dichloromethane. The unit cell of 3.4CHCl3 contains the enantiomers (delta)-[(S,S)(R,R)(R,R)] and (lambda)-[(R,R)(S,S)(S,S)], whereas in case of 3.3CH2Cl2 four independent molecules, forming pairs of the enantiomers [lambda-(R,R)(R,R)(R,R)]-3 and [lambda-(S,S)(S,S)(S,S)]-3, were observed in the unit cell. According to SQUID measurements, the antiferromagnetic intramolecular coupling of the iron(III) ions in 3 results in a S = 10/2 ground state multiplet. The anisotropy is of the easy-axis type. EPR measurements enabled an accurate determination of the ligand-field splitting parameters. The ferric star 3 is a single-molecule magnet (SMM) and shows hysteretic magnetization characteristics below a blocking temperature of about 1.2 K. However, weak intermolecular couplings, mediated in a chainlike fashion via solvent molecules, have a strong influence on the magnetic properties. Scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS) were used to determine the structural and electronic properties of star-type tetranuclear iron(III) complex 3. The molecules were deposited onto highly ordered pyrolytic graphite (HOPG). Small, regular molecule clusters, two-dimensional monolayers as well as separated single molecules were observed. In our STS measurements we found a rather large contrast at the expected locations of the metal centers of the molecules. This direct addressing of the metal centers was confirmed by DFT calculations. |
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| 700 | 1 | _ | |a Scheurer, A. |b 1 |0 P:(DE-HGF)0 |
| 700 | 1 | _ | |a Bernt, I. |b 2 |0 P:(DE-HGF)0 |
| 700 | 1 | _ | |a Heinemann, F. W. |b 3 |0 P:(DE-HGF)0 |
| 700 | 1 | _ | |a Postnikov, A. V. |b 4 |u FZJ |0 P:(DE-Juel1)VDB20976 |
| 700 | 1 | _ | |a Schünemann, V. |b 5 |0 P:(DE-HGF)0 |
| 700 | 1 | _ | |a Trautwein, A. X. |b 6 |0 P:(DE-HGF)0 |
| 700 | 1 | _ | |a Alam, M. S. |b 7 |0 P:(DE-HGF)0 |
| 700 | 1 | _ | |a Rupp, H. |b 8 |0 P:(DE-HGF)0 |
| 700 | 1 | _ | |a Müller, P. |b 9 |0 P:(DE-HGF)0 |
| 773 | _ | _ | |a 10.1039/b515980f |g p. 2865 - 2874 |p 2865 - 2874 |q 2865 - 2874 |0 PERI:(DE-600)1472887-4 |t Dalton transactions |y 2006 |x 1477-9226 |
| 856 | 7 | _ | |u http://dx.doi.org/10.1039/b515980f |
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| 915 | _ | _ | |0 StatID:(DE-HGF)0010 |a JCR/ISI refereed |
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