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@ARTICLE{Dulcevscaia:22291,
      author       = {Dulcevscaia, G.M. and Filippova, I.G. and Speldrich, M. and
                      Leusen, J. van and Kravtsov, V.C. and Baca, S.G. and
                      Kögerler, P. and Liu, S.-X. and Decurtins, S.},
      title        = {{C}luster-based {N}etworks: 1{D} and 2{D} {C}oordination
                      {P}olymers {B}ased on {{M}n{F}e2(µ3-{O})}-type {C}lusters},
      journal      = {European journal of inorganic chemistry},
      volume       = {51},
      issn         = {1434-1948},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {PreJuSER-22291},
      pages        = {5110 -5117},
      year         = {2012},
      note         = {Financial support from the Swiss National Science
                      Foundation (SCOPES $IZ73Z0_127925),$ the German Federal
                      Ministry of Education and Research (project MDA 08/022), the
                      Academy of Sciences of Moldova (project No. 09.820.05.10GF),
                      the Supreme Council for Science and Technological
                      Development of the Republic of Moldova (projects
                      09.836.05.02A and 11.817.05.03A), and the EU (POLYMAG, IIF
                      contract no. 252984) are acknowledged. We thank Prof. H.
                      Stoeckli-Evans for the collection of crystallographic data
                      sets for compound 1.},
      abstract     = {A straightforward approach to heterometallic Mn-Fe
                      cluster-based coordination polymers is presented. By
                      employing a mixed-valent μ(3)-oxo trinuclear
                      manganese(II/III) pivalate cluster, isolated as
                      [Mn(II)Mn(III)(2)O(O(2)CCMe(3))(6)(hmta)(3)]·(solvent)
                      (hmta = hexamethylenetetramine; solvent = n-propanol (1),
                      toluene (2)) in the reaction with a μ(3)-oxo trinuclear
                      iron(III) pivalate cluster compound,
                      [Fe(3)O(O(2)CCMe(3))(6)(H(2)O)(3)]O(2)CCMe(3)·2Me(3)CCO(2)H,
                      three new heterometallic {Mn(II)Fe(III)(2)} cluster-based
                      coordination polymers were obtained: the one-dimensional
                      polymer chain compounds
                      {[MnFe(2)O(O(2)CCMe(3))(6)(hmta)(2)]·0.5MeCN}(n) (3) and
                      {[MnFe(2)O(O(2)CCMe(3))(6)(hmta)(2)]·Me(3)CCO(2)H·(n-hexane)}(n)
                      (4) and the two-dimensional layer compound
                      {[MnFe(2)O(O(2)CCMe(3))(6)(hmta)(1.5)]·(toluene)}(n) (5).
                      Single-crystal X-ray diffraction analysis reveals a
                      μ(3)-oxo trinuclear pivalate cluster building block as the
                      main constituent in all polymer compounds. Different M:hmta
                      ratios in 1-5 are related to the different structural
                      functions of the N-containing ligand. In clusters 1 and 2,
                      three hmta ligands are monodentate, whereas in chains 3 and
                      4 two hmta ligands act as bridging ligands and one is a
                      monodentate ligand; in 5, all hmta molecules act as
                      bidentate bridges. Magnetic studies indicate dominant
                      antiferromagnetic interactions between the metal centers in
                      both homometallic {Mn(3)}-type clusters 1 and 2 and
                      heterometallic {MnFe(2)}-type coordination polymers 3-5.
                      Modeling of the magnetic susceptibility data to a isotropic
                      model Hamiltonian yields least-squares fits for the
                      following parameters: J(1)(Mn(II)-Mn(III)) = -6.6 cm(-1) and
                      J(2)(Mn(III)-Mn(III)) = -5.4 cm(-1) for 1; J(1) = -5.5
                      cm(-1) and J(2)(Mn(III)-Mn(III)) = -3.9 cm(-1) for 2;
                      J(1)(Mn(II)-Fe(III)) = -17.1 cm(-1) and
                      J(2)(Fe(III)-Fe(III)) = -43.7 cm(-1) for 3; J(1) = -23.8
                      cm(-1) and J(2) = -53.4 cm(-1) for 4; J(1) = -13.3 cm(-1)
                      and J(2) = -35.4 cm(-1) for 5. Intercluster coupling plays a
                      significant role in all compounds 1-5.},
      keywords     = {J (WoSType)},
      cin          = {PGI-6},
      ddc          = {540},
      cid          = {I:(DE-Juel1)PGI-6-20110106},
      pnm          = {Grundlagen für zukünftige Informationstechnologien /
                      POLYMAG - Magnetic Coordination Cluster Polymers (252984)},
      pid          = {G:(DE-Juel1)FUEK412 / G:(EU-Grant)252984},
      shelfmark    = {Chemistry, Inorganic $\&$ Nuclear},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:22524248},
      UT           = {WOS:000303952900032},
      doi          = {10.1021/ic202644t},
      url          = {https://juser.fz-juelich.de/record/22291},
}