Colorless crystals of (C
6H
14N
2){
Zn[ZnB
2P
4O
15(OH)
2]·(C
6H
13N
2)Cl}
(1) were prepared frommixtures of ZnCl
2, B
2O
3, dia
za-bicyclo[2.2.2]octane (DABCO), and 85% H
3PO
4 under mildhydrothermal conditions (170
![](/im<font color=)
ages/entities/deg.gif">C). The crystal structure was determined by single-crystalX-ray diffraction (monoclinic,
P2
1/
c (No. 14),
a = 1704.3(1) pm,
b = 937.03(5) pm,
c =1619.75(8) pm,
![](/im<font color=)
ages/gifchars/beta2.gif" BORDER=0 ALIGN="middle"> = 96.894(3)
![](/im<font color=)
ages/entities/deg.gif">,
Z = 2). The crystal structure contains tetrahedral
zig
zagribbons,
![](/isubscribe/journals/cmatex/15/i26/eqn/cm0311224e10001.gif)
{[ZnB
2P
4O
15(OH)
2]
4-}, running along [010]. Additional ZnO
2NCl tetrahedra atthe borders complete the ribbons by sharing common O-corners with the
zincoborophosphatepolymer. The nitrogen atoms of the quaternary ZnO
2NCl tetrahedra belong to monoprotonated (HDABCO)
+ ions. A second (diprotonated) species, (H
2DABCO)
2+, acts as a puretemplate and is fixed to adjacent
zincoborophosphate ribbons along [100] via hydrogen bonds.The title compound
1 can be described as an adduct of (C
6H
14N
2){Zn[ZnB
2P
4O
15(OH)
2]} withdia
za-bicyclo[2.2.2]octane-hydrochloride. Thermoanalytical and X-ray powder diffractioninvestigations to high temperatures (740
![](/im<font color=)
ages/entities/deg.gif">C) show the decomposition of
1 and the formationof a NH
4[ZnBP
2O
8] polymorph as an intermediate.