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1. Mild Hydrothermal Synthesis of the Complex Hafnium-Containing Fluorides Cs 2 [M(H 2 O) 6 ][Hf 2 F 12 ] (M = Ni, Co, Zn), CuHfF 6 (H 2 O) 4 , and Cs 2 Hf 3 Mn 3 F 20 Based on HfF 7 and HfF 6 Coordination Polyhedra

   https://doi.org/10.1021/acs.inorgchem.9b01958  

   Ayer, Gyanendra B. ; Klepov, Vladislav V. ; Smith, Mark D. ; zur Loye, Hans-Conrad ( September 2019 , Inorganic Chemistry)
2. Luminescence and Scintillation of [Nb 2 O 2 F 9 ] 3– -Dimer-Containing Oxide–Fluorides: Cs 10 (Nb 2 O 2 F 9 ) 3 F, Cs 9.4 K 0.6 (Nb 2 O 2 F 9 ) 3 F, and Cs 10 (Nb 2 O 2 F 9 ) 3 Cl

   https://doi.org/10.1021/acs.inorgchem.1c03787  

   Ayer, Gyanendra B. ; Morrison, Gregory ; Smith, Mark D. ; Jacobsohn, Luiz G. ; zur Loye, Hans-Conrad ( February 2022 , Inorganic Chemistry)
3. New germanate and mixed cobalt germanate salt inclusion materials: [(Rb 6 F)(Rb 4 F)][Ge 14 O 32 ] and [(Rb 6 F)(Rb 3.1 Co 0.9 F 0.96 )][Co 3.8 Ge 10.2 O 30 F 2 ]

   https://doi.org/10.1039/D0CE01099E  

   Carone, Darren ; Usman, Mohammad ; Klepov, Vladislav V. ; Smith, Mark D. ; Kocevski, Vancho ; Besmann, Theodore M. ; zur Loye, Hans-Conrad ( December 2020 , CrystEngComm)

   null (Ed.)

   Single crystals of two new germanates, [(Rb 6 F)(Rb 4 F)][Ge 14 O 32 ] and [(Rb 6 F)(Rb 3.1 Co 0.9 F 0.96 )][Co 3.8 Ge 10.2 O 30 F 2 ], were synthesized via high temperature RbCl/RbF flux growth. Both compounds crystallize in the cubic space group F 4̄3 m and possess the germanium framework of the previously reported salt inclusion material (SIM), [(Cs 6 F)(Cs 3 AgF)][Ge 14 O 32 ], related to the Ge 7 O 16 zeolitic family. These materials demonstrate the ability to accommodate a variety of salt-inclusions, and exhibit chemical flexibility enabling modifications of the framework through incorporation of Co. Alteration of the salt-inclusion led to intrinsic luminescence of [(Rb 6 F)(Rb 4 F)][Ge 14 O 32 ] while modification of the framework resulted in an unanticipated Rb/Co salt/inclusion in [(Rb 6 F)(Rb 3.1 Co 0.9 F 0.96 )][Co 3.8 Ge 10.2 O 30 F 2 ]. Fluorescence measurements were performed on [(Rb 6 F)(Rb 4 F)][Ge 14 O 32 ]. First-principles calculations in the form of density functional theory (DFT) were performed for [(Rb 6 F)(Rb 3.1 Co 0.9 F 0.96 )][Co 3.8 Ge 10.2 O 30 F 2 ] to elucidate its electronic and magnetic properties, and stability at 0 K. 

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4. Enhancing Photoluminescence and Stability of Mn-Doped Cs 2 InCl 5 ·H 2 O Microcrystals with Introduced Bi 3+ Ion

   https://doi.org/10.1021/acs.jpcc.2c08308  

   Jing, Liang ; Cen, Qingmei ; Pang, Qi ; Zhang, Jin Zhong ( February 2023 , The Journal of Physical Chemistry C)
5. Crystal structures of [Cu(phen)(H 2 O) 3 ( M F 6 )]·H 2 O ( M = Ti, Zr, Hf) and [Cu(phen)(H 2 O) 2 F] 2 [HfF 6 ]·H 2 O

   https://doi.org/10.1107/S2056989021000645  

   Nisbet, Matthew L. ; Poeppelmeier, Kenneth R. ( February 2021 , Acta Crystallographica Section E Crystallographic Communications)

   null (Ed.)

   The crystal structures of three bridged bimetallic molecular compounds, namely, triaqua-2κ 3 O -μ-fluorido-pentafluorido-1κ 5 F -(1,10-phenanthroline-2κ 2 N , N ′)copper(II)titanium(IV) monohydrate, [Cu(TiF 6 )(phen)(H 2 O) 3 ]·H 2 O (phen is 1,10-phenanthroline, C 12 H 8 N 2 ), (I), triaqua-2κ 3 O -μ-fluorido-pentafluorido-1κ 5 F -(1,10-phenanthroline-2κ 2 N , N ′)copper(II)zirconium(IV) monohydrate, [Cu(ZrF 6 )(phen)(H 2 O) 3 ]·H 2 O, (II), and triaqua-2κ 3 O -μ-fluorido-pentafluorido-1κ 5 F -(1,10-phenanthroline-2κ 2 N , N ′)copper(II)hafnium(IV) monohydrate, [Cu(HfF 6 )(phen)(H 2 O) 3 ]·H 2 O, (III), and one molecular salt, bis[diaquafluorido(1,10-phenanthroline-κ 2 N , N ′)copper(II)] hexafluoridohafnate(IV) dihydrate, [CuF(phen)(H 2 O) 2 ] 2 [HfF 6 ]·2H 2 O, (IV), are reported. The bridged bimetallic compounds adopt Λ-shaped configurations, with the octahedrally coordinated copper(II) center linked to the fluorinated early transition metal via a fluoride linkage. The extended structures of these Λ-shaped compounds are organized through both intra- and intermolecular hydrogen bonds and intermolecular π–π stacking. The salt compound [Cu(phen)(H 2 O) 2 F] 2 [HfF 6 ]·H 2 O displays an isolated square-pyramidal Cu(phen)(H 2 O) 2 F + complex linked to other cationic complexes and isolated HfF 6 2− anions through intermolecular hydrogen-bonding interactions. 

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