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Description
  • The comprehensive study reported herein provides compelling evidence that anion templates are the main driving force in the formation of two novel nanoscale lanthanide hydroxide clusters, {Gd38(ClO4)6} (1) and {Gd48Cl2(NO3)} (2), characterized by single-crystal X-ray crystallography, infrared spectroscopy, and magnetic measurements. {Gd38(ClO4)6}, encapsulating six ClO4MINUS SIGN ions, features a cage core composed of twelve vertex-sharing {Gd4} tetrahedrons and one GdDOT OPERATOR  DOT OPERATOR  DOT OPERATOR  Gd pillar. When ClMINUS SIGN and NO3MINUS SIGN were incorporated in the reaction instead of ClO4MINUS SIGN , {Gd48Cl2(NO3)} is obtained with a barrel shape constituted by twelve vertex-sharing {Gd4} tetrahedrons and six {Gd5} pyramids. What is more, the cage-like {Gd38} can be dynamically converted into the barrel-shaped {Gd48} upon ClMINUS SIGN and NO3MINUS SIGN stimulus. To our knowledge, it is the first time that the linear M-O-M' fashion and the unique μ8-ClO4MINUS SIGN mode have been crystallized in pure lanthanide complex, and complex 2 represents the largest gadolinium cluster. Both of the complexes display large magnetocaloric effect in units of J kgMINUS SIGN 1 KMINUS SIGN 1 and mJ cmMINUS SIGN 3 KMINUS SIGN 1 on account of the weak antiferromagnetic exchange, the high NGd/MW ratio (magnetic density), and the relatively compact crystal lattice (mass density).
  • The comprehensive study reported herein provides compelling evidence that anion templates are the main driving force in the formation of two novel nanoscale lanthanide hydroxide clusters, {Gd38(ClO4)6} (1) and {Gd48Cl2(NO3)} (2), characterized by single-crystal X-ray crystallography, infrared spectroscopy, and magnetic measurements. {Gd38(ClO4)6}, encapsulating six ClO4MINUS SIGN ions, features a cage core composed of twelve vertex-sharing {Gd4} tetrahedrons and one GdDOT OPERATOR  DOT OPERATOR  DOT OPERATOR  Gd pillar. When ClMINUS SIGN and NO3MINUS SIGN were incorporated in the reaction instead of ClO4MINUS SIGN , {Gd48Cl2(NO3)} is obtained with a barrel shape constituted by twelve vertex-sharing {Gd4} tetrahedrons and six {Gd5} pyramids. What is more, the cage-like {Gd38} can be dynamically converted into the barrel-shaped {Gd48} upon ClMINUS SIGN and NO3MINUS SIGN stimulus. To our knowledge, it is the first time that the linear M-O-M' fashion and the unique μ8-ClO4MINUS SIGN mode have been crystallized in pure lanthanide complex, and complex 2 represents the largest gadolinium cluster. Both of the complexes display large magnetocaloric effect in units of J kgMINUS SIGN 1 KMINUS SIGN 1 and mJ cmMINUS SIGN 3 KMINUS SIGN 1 on account of the weak antiferromagnetic exchange, the high NGd/MW ratio (magnetic density), and the relatively compact crystal lattice (mass density). (en)
Title
  • Anion-templated assembly and magnetocaloric properties of a nanoscale {Gd38} cage versus a {Gd48} barrel
  • Anion-templated assembly and magnetocaloric properties of a nanoscale {Gd38} cage versus a {Gd48} barrel (en)
skos:prefLabel
  • Anion-templated assembly and magnetocaloric properties of a nanoscale {Gd38} cage versus a {Gd48} barrel
  • Anion-templated assembly and magnetocaloric properties of a nanoscale {Gd38} cage versus a {Gd48} barrel (en)
skos:notation
  • RIV/00216208:11320/13:10190696!RIV14-MSM-11320___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I, P(LM2011025)
http://linked.open...iv/cisloPeriodika
  • 19
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 61278
http://linked.open...ai/riv/idVysledku
  • RIV/00216208:11320/13:10190696
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • magnetic properties; lanthanides; cluster compounds; anion-templates (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV
  • [038335202611]
http://linked.open...i/riv/nazevZdroje
  • Chemistry - A European Journal
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 44
http://linked.open...iv/tvurceVysledku
  • Prokleška, Jan
  • Sechovský, Vladimír
  • Chen, Y.C.
  • Guo, F. S.
  • Leng, J. D.
  • Lin, W. Q.
  • Mao, L. L.
  • Orendac, Martin
  • Tarasenko, Robert
  • Tong, M. L.
issn
  • 0947-6539
number of pages
http://bibframe.org/vocab/doi
  • 10.1002/chem.201302093
http://localhost/t...ganizacniJednotka
  • 11320
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