diff --git a/molecules/isobutane.xyz b/molecules/isobutane.xyz
new file mode 100755
index 0000000..b4e3e88
--- /dev/null
+++ b/molecules/isobutane.xyz
@@ -0,0 +1,16 @@
+14
+
+C       0.000000000000000      0.000000000000000      0.376949000000000
+H       0.000000000000000      0.000000000000000      1.475269000000000
+C       0.000000000000000      1.450290000000000     -0.096234000000000
+H       0.000000000000000      1.493997000000000     -1.190847000000000
+H      -0.885482000000000      1.984695000000000      0.261297000000000
+H       0.885482000000000      1.984695000000000      0.261297000000000
+C       1.255988000000000     -0.725145000000000     -0.096234000000000
+H       1.293839000000000     -0.746998000000000     -1.190847000000000
+H       2.161537000000000     -0.225498000000000      0.261297000000000
+H       1.276055000000000     -1.759198000000000      0.261297000000000
+C      -1.255988000000000     -0.725145000000000     -0.096234000000000
+H      -1.293839000000000     -0.746998000000000     -1.190847000000000
+H      -1.276055000000000     -1.759198000000000      0.261297000000000
+H      -2.161537000000000     -0.225498000000000      0.261297000000000