diff --git a/src/data/amber_u/CTT.frg b/src/data/amber_u/CTT.frg
new file mode 100644
index 0000000000..9740331776
--- /dev/null
+++ b/src/data/amber_u/CTT.frg
@@ -0,0 +1,14 @@
+# Fragment file for flexible CCl4
+$CCl
+    5    1    1    0
+CCl
+    1 C    CT        0    0    0    1    1   -0.388000    0.000000
+    2CL1   CL        0    0    0    1    1    0.097000    0.000000
+    3CL2   CL        0    0    0    1    1    0.097000    0.000000
+    4CL3   CL        0    0    0    1    1    0.097000    0.000000
+    5CL4   CL        0    0    0    1    1    0.097000    0.000000
+    1    2
+    1    3
+    1    4
+    1    5
+