Four or
ganically templated uranyl phosphonates, [C
4N
2H
12][UO
2F(PO
3CH
3)]
2 (UPNO-1),[C
4N
2H
12][UO
2(PO
3CH
3)(PO
2(OH)CH
3)]
2 (UPNO-2), [C
4N
2H
12][(U
2O
4F
3)(UO
2F(H
2O))(PO
3C
6H
5)
2]·2H
2O (UPNO-3), and [C
4N
2H
12]
2[(UO
2)
5(PO
3CH
2C
6H
5)
6(PO
2(OH)CH
2C
6H
5)
2] (UPNO-4) havebeen synthesized under hydrothermal conditions. UPNO-1 contains doubly protonated piperazine templates, [C
4N
2H
12]
2+, residin
g between [UO
2F(PO
3CH
3)]
1- anionic layers. Distincthydrophobic and hydrophilic re
gions are present between [UO
2(PO
3CH
3)(PO
2(OH)CH
3)]
1-layers in UPNO-2. The template is found in the hydrophilic interlayer space only, completelyse
gre
gated from the methyl
groups of the uranyl methylphosphonate layer, which protrudeinto the hydrophobic interlayer space. UPNO-3 contains [(U
2O
4F
3)(UO
2F(H
2O))(PO
3C
6H
5)
2]
2-layers separated by both piperazine templates, [C
4N
2H
12]
2+, and phosphonate phenyl
groups,which exist in the same interlayer re
gion. In UPNO-4 the re
gion between [(UO
2)
5(PO
3CH
2C
6H
5)
6(PO
2(OH)CH
2C
6H
5)
2]
4- layers is completely hydrophobic as a result of the lar
ge numberof benzyl
groups occupyin
g the interlayer space. The template is found in voids within eachlayer. The structures of these compounds are dependent upon the reactant concentrations. Crystal data for the compounds are as follows: UPNO-1,
a = 6.9288(3) &Arin
g;,
b = 8.1174(4)&Arin
g;,
c = 14.8505(9) &Arin
g;,
ges/
gifchars/beta2.
gif" BORDER=0 ALIGN="middle"> = 91.7173(19)
ges/entities/de
g.
gif">, monoclinic
P2
1/
n (no. 14),
Z = 2; for UPNO-2,
a =10.0682(4) &Arin
g;,
b = 8.9121(3) &Arin
g;,
c = 12.9631(7) &Arin
g;,
ges/
gifchars/beta2.
gif" BORDER=0 ALIGN="middle"> = 90.4901(15)
ges/entities/de
g.
gif">, monoclinic
P2
1/
a (no. 14),
Z = 2; for UPNO-3,
a = 6.7796(1),
b = 17.2821(4) &Arin
g;,
c = 24.6754(6) &Arin
g;, orthorhombic
Pbcm(no. 57),
Z = 4; and for UPNO-4,
a = 11.4732(2) &Arin
g;,
b = 14.9097(2) &Arin
g;,
c = 15.4480(3) &Arin
g;,
ges/
gifchars/alpha.
gif" BORDER=0> =64.2307(6)
ges/entities/de
g.
gif">,
ges/
gifchars/beta2.
gif" BORDER=0 ALIGN="middle"> = 70.2105(7)
ges/entities/de
g.
gif">,
ges/
gifchars/
gamma.
gif" BORDER=0 > = 84.136(1)
ges/entities/de
g.
gif">, triclinic
Pges/entities/onemacr.
gif"> (no. 2),
Z = 2.