Abstract
Two new organo-phosphate and organo-sulfate compounds were synthesized at room temperature. They have been firstly characterised by X-ray diffraction (XRD)—C
6H
5CH
2C
5H
4NH
+·H
2PO
4
− is monoclinic
P2
1/
c with following unit cell dimensions:
a
=
5.7950(3)
Å,
b
=
9.3490(18)
Å,
c
=
23.537(5)
Å and
β
=
97.328(11)°. C
6H
5CH
2C
5H
4NH
+·HSO
4
− is monoclinic
P2
1/
a with following unit cell dimensions:
a
=
8.990(6)
Å,
b
=
9.925(7)
Å,
c
=
14.081(9)
Å and
β
=
105.18(8)°. In both cases the structure consists of infinite parallel two-dimensional planes built of mutually H
2PO
4
−/HSO
4
− anions and C
6H
5CH
2C
5H
4NH
+ cations connected by strong O–H⋯O and N–H⋯O hydrogen bonds. Then, in order to detect phase transitions and watch changes in the conductivity behaviour, investigations by differential scanning calorimetry (DSC), electrical conductivity measurements were carried out. A substitution of H
2PO
4
− by HSO
4
− increases the conductivity even at room temperature.