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@ARTICLE{Schmitz:873537,
      author       = {Schmitz, Sebastian and Qiu, Xinkai and Glöß, Maria and
                      van Leusen, Jan and Izarova, Natalya V. and Nadeem, Muhammad
                      Arif and Griebel, Jan and Chiechi, Ryan C. and Kögerler,
                      Paul and Monakhov, Kirill Yu.},
      title        = {{C}onductive {S}elf-{A}ssembled {M}onolayers of
                      {P}aramagnetic {{C}o{IIC}o4{III}} and {{C}o4{IIC}o2{III}}
                      {C}oordination {C}lusters on {G}old {S}urfaces},
      journal      = {Frontiers in Chemistry},
      volume       = {7},
      issn         = {2296-2646},
      address      = {Lausanne},
      publisher    = {Frontiers Media},
      reportid     = {FZJ-2020-00805},
      pages        = {681},
      year         = {2019},
      abstract     = {Two polynuclear cobalt(II,III) complexes,
                      [Co5(N3)4(N-n-bda)4(bza·SMe)2] (1) and
                      [Co6(N3)4(N-n-bda)2(bza·SMe)5(MeOH)4]Cl (2), where
                      Hbza·SMe = 4-(methylthio)benzoic acid and N-n-H2bda =
                      N-n-butyldiethanolamine, were synthesized and fully
                      characterized by various techniques. Compound 1 exhibits an
                      unusual, approximately C2-symmetric {CoIICoIII4} core of two
                      isosceles Co3 triangles with perpendicularly oriented
                      planes, sharing a central, high-spin CoII ion residing in a
                      distorted tetrahedral coordination environment. This central
                      CoII ion is connected to four outer, octahedrally
                      coordinated low-spin CoIII ions via oxo bridges. Compound 2
                      comprises a semi-circular {CoII4CoIII2} motif of four
                      non-interacting high-spin CoII and two low-spin CoIII
                      centers in octahedral coordination environments.
                      Self-assembled monolayers (SAMs) of 1 and 2 were physisorbed
                      on template-stripped gold surfaces contacted by an eutectic
                      gallium-indium (EGaIn) tip. The acquired current
                      density-voltage (I-V) data revealed that the cobalt-based
                      SAMs are more electrically robust than those of the
                      previously reported dinuclear {CuIILnIII} complexes with Ln
                      = Gd, Tb, Dy, or Y (Schmitz et al., 2018a). In addition,
                      between 170 and 220°C, the neutral, mixed-valence compound
                      1 undergoes a redox modification, yielding a {Co5}-based
                      coordination cluster (1-A) with five non-interacting,
                      high-spin octahedral CoII centers as indicated by SQUID
                      magnetometry analysis in combination with X-ray
                      photoelectron spectroscopy and infrared spectroscopy.
                      Solvothermal treatment of 1 results in a high-nuclearity
                      coordination cluster, [Co10(N3)2(N-n-bda)6(bza·SMe)6] (3),
                      containing 10 virtually non-interacting high-spin CoII
                      centers.},
      cin          = {PGI-7 / JARA-FIT / PGI-6},
      ddc          = {540},
      cid          = {I:(DE-Juel1)PGI-7-20110106 / $I:(DE-82)080009_20140620$ /
                      I:(DE-Juel1)PGI-6-20110106},
      pnm          = {524 - Controlling Collective States (POF3-524)},
      pid          = {G:(DE-HGF)POF3-524},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:31750287},
      UT           = {WOS:000502093700001},
      doi          = {10.3389/fchem.2019.00681},
      url          = {https://juser.fz-juelich.de/record/873537},
}