2 \begin{pspicture
}(-
4,-
3)(
4.5,
5.5)
3 \psset{lightsrc=
100 10 -
20,lightintensity=
3,viewpoint=
200 30
5 \psframe(-
4,-
3)(
4.5,
5.5)
6 {\psset{linewidth=
0.5\pslinewidth}
8 /Soufre1
{3.56 [20 16] newsphere
9 dup (Yellow) outputcolors
} def
10 /Soufre2
{3.56 [20 16] newsphere
11 {0 0.000 20.10 translatepoint3d
} solidtransform
12 dup (Yellow) outputcolors
} def
15 7.5 0.5 15 [10 10] newcylindre
16 dup (Red) outputcolors
19 0 0.5 7.5 [10 10] newcylindre
20 dup (Yellow) outputcolors
23 /Liaison
{LiaisonR LiaisonY solidfuz
} def
24 /Ox
{2.17 [20 16] newsphere
25 {0 0 15 translatepoint3d
} solidtransform
26 dup (Red) outputcolors
} def
27 /LO
{ Liaison Ox solidfuz
} def
28 /LO1
{ LO
{0 -
109.5 0 rotateOpoint3d
} solidtransform
} def
29 /LOx1
{ LO1
{0 0 120 rotateOpoint3d
} solidtransform
} def
30 % fin liaison simple S-O
32 /LiaisonD1
{Liaison
{-
0.75 0 0 translatepoint3d
} solidtransform
} def
33 /LiaisonD2
{Liaison
{0.75 0 0 translatepoint3d
} solidtransform
} def
34 /LiaisonDD
{ LiaisonD1 LiaisonD2 solidfuz
} def
35 /LiaisonDOx
{LiaisonDD Ox solidfuz
} def
36 /LiaisonDOx1
{LiaisonDOx
{0 -
109.5 0 rotateOpoint3d
} solidtransform
} def
37 /LiaisonDOx2
{LiaisonDOx1
{0 0 -
120 rotateOpoint3d
} solidtransform
} def
38 /LO12
{ LiaisonDOx1 LiaisonDOx2 solidfuz
} def
39 /LO123
{LO12 LOx1 solidfuz
} def
41 /L4
{ 0 0.5 20.10 [16 10] newcylindre
42 dup (Yellow) outputcolors
44 /S1L4
{ Soufre1 L4 solidfuz
} def
45 /S1S2L4
{ S1L4 Soufre2 solidfuz
} def
46 /S2O3
{ S1S2L4 LO123 solidfuz
} def
48 \axesIIID(
0,
0,
0)(
25,
20,
25)
}
49 \psPoint(
0,
0,
20.1)
{S2
}
50 \psPoint(-
14.14,
0,-
5)
{O1
}
51 \psPoint(
7.07,-
12.24,-
5 )
{O2
}
52 \psPoint(
7.07,
12.24,-
5 )
{O3
}
53 \pcline[linestyle=dotted
]{<->
}(O2)(O)
55 \pcline[linestyle=dotted
]{<->
}(O)(S2)
56 \aput{:U
}{\small 20,
1 pm
}
57 \pcline[linestyle=dotted
]{<->
}(O2)(O3)
58 \lput*
{:U
}{\small 24,
5 pm
}
59 \pcline[linestyle=dotted
]{<->
}(O2)(S2)
60 \lput*
{:U
}{\small 28,
8 pm
}
61 \pstMarkAngle[arrows=<->,MarkAngleRadius=
0.8,linestyle=dotted
]{O2
}{O
}{O3
}{\footnotesize 109,
4$^
{\mathrm{o
}}$
}
62 \pstMarkAngle[arrows=<->,MarkAngleRadius=
0.8,linestyle=dotted
]{O1
}{O
}{S2
}{\footnotesize 109,
5$^
{\mathrm{o
}}$
}
63 \rput(
0,-
2.5)
{$
\mathrm{S_2^
{\phantom{2}}O_3^
{2-
}}$
}