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@ARTICLE{Alekseev:1005263,
      author       = {Alekseev, Evgeny and Yucheng, Hao and Langer, Eike and Bin,
                      Xiao and Kegler, Philip and Cao, Xin and Kunhong, Hu and
                      Eichel, Rüdiger-A. and Shuao, Wang},
      title        = {{U}nderstanding of the {S}tructural {C}hemistry in the
                      {U}ranium {O}xo-{T}ellurium {S}ystem under {HT}/{HP}
                      {C}onditions},
      journal      = {Frontiers in Chemistry},
      volume       = {11},
      issn         = {2296-2646},
      address      = {Lausanne},
      publisher    = {Frontiers Media},
      reportid     = {FZJ-2023-01390},
      pages        = {1152113},
      year         = {2023},
      abstract     = {The study of phase formation in the U-Te-O systems with
                      mono and divalent cations under high-temperature
                      high-pressure (HT/HP) conditions has resulted in four new
                      inorganic compounds: K2[(UO2)(Te2O7)], Mg[(UO2)(TeO3)2],
                      Sr[(UO2)(TeO3)2] and Sr[(UO2)(TeO5)]. Tellurium occurs as
                      TeIV, TeV, and TeVI in these phases which demonstrate the
                      high chemical flexibility of the system. Uranium (VI) adopts
                      a variety of coordinations, namely, UO6 in K2[(UO2)(Te2O7),
                      UO7 in Mg[(UO2)(TeO3)2] and Sr[(UO2)(TeO3)2], and UO8 in
                      Sr[(UO2)(TeO5)]. The structure of K2[(UO2)(Te2O7)] is
                      featured with one dimensional (1D) [Te2O7]4- chains along
                      the c-axis. The Te2O7 chains are further linked by UO6
                      polyhedra, forming the 3D [(UO2)(Te2O7)]2- anionic
                      frameworks. In Mg[(UO2)(TeO3)2], TeO4 disphenoids share
                      common corners with each other resulting in infinite 1D
                      chains of [(TeO3)2]4- propagating along the a-axis. These
                      chains link the uranyl bipyramids by edge sharing along two
                      edges of the disphenoids, resulting in the 2D layered
                      structure of [(UO2)(Te2O6)]2-. The structure of
                      Sr[(UO2)(TeO3)2] is based on 1D chains of
                      [(UO2)(TeO3)2]∞2− propagating into the c-axis. These
                      chains are formed by edge-sharing uranyl bipyramids which
                      are additionally fused together by two TeO4 disphenoids,
                      which also share two edges. The 3D framework structure of
                      Sr[(UO2)(TeO5)] is composed of 1D [TeO5]4− chains sharing
                      edges with UO7 bipyramids. Three tunnels based on 6-Membered
                      rings (MRs) are propagating along [001], [010] and [100]
                      directions. The HT/HP synthetic conditions for the
                      preparation of single crystalline samples and their
                      structural aspects are discussed in this work.},
      cin          = {IEK-9},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-9-20110218},
      pnm          = {1232 - Power-based Fuels and Chemicals (POF4-123)},
      pid          = {G:(DE-HGF)POF4-1232},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {36970412},
      UT           = {WOS:000958538300001},
      doi          = {10.3389/fchem.2023.1152113},
      url          = {https://juser.fz-juelich.de/record/1005263},
}