Abstract
The crystal structure of (6-NH
2
C
5
H
3
NHCO
2
H)H
2
PO
4
was determined by X-ray diffraction on single crystal. The crystal symmetry is triclinic P
with unit cell dimensions a = 7.221(1) Å, b = 8.086(2) Å, c = 8.832(5) Å, α = 81.97(8)°, β = 100.52(8)°, γ = 116.32(6)°, V = 453.4(4) Å,
3
and Z = 2. The crystal structure has been solved and refined down to R = 0.030 and R
w
= 0.050, using 4129 independent reflections. The atomic arrangement contains inorganic layers parallel to the ab plane around z = 1/2. The organic groups, (6-NH
2
C
5
H
3
NHCO
2
H)
+
, are anchored between adjacent polyanions through multiple hydrogen bonds. Geometrical characteristics of the hydrogen bonds are described. Electrical conductivity measurements show that the (6-NH
2
C
5
H
3
NHCO
2
H)H
2
PO
4
has a conductivity value σ = 7.1 10
−6
Ω−1cm
−1 at 318 K with an activation energy E
a
= 0.11 eV.