<s>
Mercury	B-Application
is	O
a	O
freeware	O
developed	O
by	O
the	O
Cambridge	O
Crystallographic	O
Data	O
Centre	O
,	O
originally	O
designed	O
as	O
a	O
crystal	O
structure	O
visualization	O
tool	O
.	O
</s>
<s>
Mercury	B-Application
helps	O
three	O
dimensional	O
visualization	O
of	O
crystal	O
structure	O
and	O
assists	O
in	O
drawing	O
and	O
analysis	O
of	O
crystal	O
packing	O
and	O
intermolecular	O
interactions	O
.	O
</s>
<s>
Current	O
version	O
Mercury	B-Application
can	O
read	O
"	O
cif	O
"	O
,	O
"	O
.mol	O
"	O
,	O
"	O
.mol2	O
"	O
,	O
"	O
.pdb	O
"	O
,	O
"	O
.res	O
"	O
,	O
"	O
.sd	O
"	O
and	O
"	O
.xyz	O
"	O
types	O
of	O
files	O
.	O
</s>
<s>
Mercury	B-Application
has	O
its	O
own	O
file	O
format	O
with	O
filename	O
extension	O
"	O
.mryx	O
"	O
.	O
</s>
<s>
The	O
Cambridge	O
Crystallographic	O
Data	O
Centre	O
(	O
CCDC	O
)	O
developed	O
and	O
launched	O
two	O
programs	O
,	O
named	O
ConQuest	O
and	O
Mercury	B-Application
that	O
run	O
under	O
Windows	B-Application
and	O
various	O
types	O
of	O
Unix	B-Application
,	O
including	O
Linux	B-Application
.	O
</s>
<s>
ConQuest	O
as	O
a	O
search	O
interface	O
to	O
the	O
Cambridge	O
Structural	O
Database	O
(	O
CSD	O
)	O
,	O
with	O
Fortran	B-Application
code	O
that	O
performs	O
a	O
large	O
variety	O
of	O
tasks	O
,	O
such	O
as	O
two	O
dimensional	O
and	O
three-dimensional	O
substructure	O
searching	O
.	O
</s>
<s>
Mercury	B-Application
introduced	O
as	O
a	O
crystal	O
structure	O
visualizer	O
having	O
the	O
facilities	O
for	O
exploring	O
the	O
intermolecular	O
contacts	O
.	O
</s>
<s>
The	O
mercury	B-Application
program	O
entirely	O
written	O
in	O
object	O
oriented	O
C++	B-Language
.	O
</s>
<s>
The	O
C++	B-Language
Qt	B-Language
library	I-Language
is	O
used	O
for	O
building	O
the	O
GUI	B-Application
and	O
OpenGL	B-Application
for	O
three-dimensional	O
graphics	O
rendering	O
.	O
</s>
<s>
The	O
primary	O
objective	O
of	O
the	O
first	O
generation	O
Mercury	B-Application
is	O
to	O
provide	O
the	O
three	O
dimensional	O
viewing	O
of	O
crystal	O
structures	O
with	O
.MOL2	O
,	O
.PDB	O
,	O
.CIF	O
,	O
.MOL	O
file	O
formats	O
.	O
</s>
<s>
The	O
first	O
version	O
have	O
approximately	O
2800	O
users	O
signed	O
on	O
to	O
the	O
Mercury	B-Application
e-mail	O
announcement	O
list	O
.	O
</s>
<s>
Mercury	B-Application
2.0	O
launched	O
in	O
2008	O
,	O
with	O
additional	O
tools	O
to	O
interpret	O
and	O
compare	O
packing	O
trends	O
in	O
crystal	O
structures	O
.	O
</s>
<s>
Mercury	B-Application
version	O
released	O
in	O
2015	O
and	O
later	O
provides	O
an	O
additional	O
functionality	O
to	O
generate	O
3D	O
print	O
.	O
</s>
<s>
The	O
current	O
Version	O
4.0	O
of	O
Mercury	B-Application
developed	O
its	O
visual	O
interface	O
up	O
to	O
a	O
greater	O
extent	O
by	O
comparing	O
with	O
its	O
old	O
versions	O
.	O
</s>
<s>
Mercury	B-Application
is	O
available	O
as	O
a	O
free	O
download	O
software	O
and	O
full	O
version	O
Mercury	B-Application
with	O
more	O
advanced	O
features	O
available	O
with	O
a	O
CSD	O
licence	O
,	O
advanced	O
features	O
are	O
disabled	O
in	O
the	O
absence	O
of	O
such	O
a	O
licence	O
.	O
</s>
