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@ARTICLE{VelazquezGarcia:588610,
      author       = {Velazquez Garcia, Jose and Basuroy, Krishnayan and
                      Storozhuk, Darina and Wong, Joanne and Demeshko, Serhiy and
                      Meyer, Franc and Henning, Robert and Techert, Simone},
      title        = {{S}tructural {D}ynamics of a {T}hermally {S}ilent
                      {T}riiron({II}) {S}pin {C}rossover {D}efect {G}rid
                      {C}omplex},
      journal      = {Dalton transactions},
      volume       = {52},
      issn         = {0300-9246},
      address      = {London},
      publisher    = {Soc.},
      reportid     = {PUBDB-2023-04837, DESY-23-115},
      pages        = {12224 - 12234},
      year         = {2023},
      abstract     = {The structural evolution of spin crossover (SCO) complexes
                      during their spin transition at equilibrium and
                      out-of-equilibrium conditions needs to be understood to
                      enable their successful utilisation in displays, actuators
                      and memory components. In this study, diffraction techniques
                      were employed to study the structural changes accompanying
                      the temperature increase and the light irradiation of a
                      defect [2x2] triiron (II) metallogrid of the form
                      [Fe$^{II}$$_3$LH$_2$(HLH)$_2$](BF$_4$)$_4$·4MeCN (FE3),
                      L$^H$ =3,5-bis{6-(2,2’-bipyridyl)}pyrazole. Although a
                      multi-temperature crystallographic investigation on single
                      crystals evidenced that the compound does not exhibit a
                      thermal spin transition, the structural analysis of the
                      defect grid suggests that the flexibility of the grid,
                      provided by a metal-devoid vertex, leads to interesting
                      characteristics that can be used for intermolecular
                      cooperativity in related thermally responsive systems.
                      Time-resolved photocrystallography results reveal that upon
                      excitation with a ps laser pulse, the defect grid shows the
                      first two steps of the out-of-equilibrium process, namely
                      the photoinduced and elastic steps, occurring at the ps and
                      ns time scales, respectively. Similar to a previously
                      reported [2x2] tetrairon(II) metallogrid, FE3 exhibits a
                      local distortion of the entire grid during the photoinduced
                      step and a long-range distortion of the lattice during the
                      elastic step. Although the lifetime of the pure photoinduced
                      high spin (HS) state is longer in the tetranuclear grid than
                      in the defect grid, suggesting that the global nuclearity
                      plays a crucial role for the lifetime of the photoinduced
                      species, the influence of the co-crystalising solvent on the
                      lifetime of the photoinduced HS state remains unknown. This
                      study sheds light on the out-of-equilibrium dynamics of a
                      thermally silent defect triiron SCO metallogrid.},
      cin          = {FS-SCS},
      ddc          = {540},
      cid          = {I:(DE-H253)FS-SCS-20131031},
      pnm          = {633 - Life Sciences – Building Blocks of Life: Structure
                      and Function (POF4-633) / 6G3 - PETRA III (DESY) (POF4-6G3)
                      / SFB 1073 B06 - Echtzeituntersuchungen der optischen
                      Anregung in oligonuklearen Metallkomplexen mit schaltbaren
                      Spin- und Ladungszuständen (B06) (240171831) / SFB 1073 C02
                      - In-situ hochauflösende Untersuchung des aktiven Zustands
                      bei der (photo-) elektrochemischen Wasserspaltung (C02)
                      (240172646)},
      pid          = {G:(DE-HGF)POF4-633 / G:(DE-HGF)POF4-6G3 /
                      G:(GEPRIS)240171831 / G:(GEPRIS)240172646},
      experiment   = {EXP:(DE-H253)P-P11-20150101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:37656445},
      UT           = {WOS:001059780000001},
      doi          = {10.1039/D3DT02067C},
      url          = {https://bib-pubdb1.desy.de/record/588610},
}