Abstract
U(VI), Np(VI), and Pu(VI) borates with the formula AnO2[B 8O11(OH)4] (An = U, Np, Pu) have been prepared via the reactions of U(VI) nitrate, Np(VI) perchlorate, or Pu(IV) or Pu(VI) nitrate with molten boric acid. These compounds are all isotypic and consist of a linear actinyl(VI) cation, AnO22+, surrounded by BO 3 triangles and BO4 tetrahedra to create an AnO 8 hexagonal bipyramidal environment. The actinyl bond lengths are consistent with actinide contraction across this series. The borate anions bridge between actinyl units to create sheets. Additional BO3 triangles and BO4 tetrahedra extend from the polyborate layers and connect these sheets together toform a three-dimensional chiral framework structure. UV-vis-NIR absorption and fluorescence spectroscopy confirms the hexavalent oxidation state in all three compounds. Bond-valence parameters are developed for Np(VI).
| Original language | English |
|---|---|
| Pages (from-to) | 2527-2533 |
| Number of pages | 7 |
| Journal | Inorganic Chemistry |
| Volume | 50 |
| Issue number | 6 |
| DOIs | |
| State | Published - Mar 21 2011 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Inorganic Chemistry
- Physical and Theoretical Chemistry
Cite this
Role of anions and reaction conditions in the preparation of uranium(VI), neptunium(VI), and plutonium(VI) borates. / Wang, Shuao; Villa, Eric; Diwu, Juan; Alekseev, Evgeny V.; Depmeier, Wulf; Albrecht-Schmitt, Thomas E.
In: Inorganic Chemistry, Vol. 50, No. 6, 21.03.2011, p. 2527-2533.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Role of anions and reaction conditions in the preparation of uranium(VI), neptunium(VI), and plutonium(VI) borates
AU - Wang, Shuao
AU - Villa, Eric
AU - Diwu, Juan
AU - Alekseev, Evgeny V.
AU - Depmeier, Wulf
AU - Albrecht-Schmitt, Thomas E.
PY - 2011/3/21
Y1 - 2011/3/21
N2 - U(VI), Np(VI), and Pu(VI) borates with the formula AnO2[B 8O11(OH)4] (An = U, Np, Pu) have been prepared via the reactions of U(VI) nitrate, Np(VI) perchlorate, or Pu(IV) or Pu(VI) nitrate with molten boric acid. These compounds are all isotypic and consist of a linear actinyl(VI) cation, AnO22+, surrounded by BO 3 triangles and BO4 tetrahedra to create an AnO 8 hexagonal bipyramidal environment. The actinyl bond lengths are consistent with actinide contraction across this series. The borate anions bridge between actinyl units to create sheets. Additional BO3 triangles and BO4 tetrahedra extend from the polyborate layers and connect these sheets together toform a three-dimensional chiral framework structure. UV-vis-NIR absorption and fluorescence spectroscopy confirms the hexavalent oxidation state in all three compounds. Bond-valence parameters are developed for Np(VI).
AB - U(VI), Np(VI), and Pu(VI) borates with the formula AnO2[B 8O11(OH)4] (An = U, Np, Pu) have been prepared via the reactions of U(VI) nitrate, Np(VI) perchlorate, or Pu(IV) or Pu(VI) nitrate with molten boric acid. These compounds are all isotypic and consist of a linear actinyl(VI) cation, AnO22+, surrounded by BO 3 triangles and BO4 tetrahedra to create an AnO 8 hexagonal bipyramidal environment. The actinyl bond lengths are consistent with actinide contraction across this series. The borate anions bridge between actinyl units to create sheets. Additional BO3 triangles and BO4 tetrahedra extend from the polyborate layers and connect these sheets together toform a three-dimensional chiral framework structure. UV-vis-NIR absorption and fluorescence spectroscopy confirms the hexavalent oxidation state in all three compounds. Bond-valence parameters are developed for Np(VI).
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U2 - 10.1021/ic102356d
DO - 10.1021/ic102356d
M3 - Article
VL - 50
SP - 2527
EP - 2533
JO - Inorganic Chemistry
JF - Inorganic Chemistry
SN - 0020-1669
IS - 6
ER -