diff --git a/data/wfns/13C16O/13C16O_exact_PES.txt b/data/wfns/13C16O/13C16O_PES.txt
similarity index 100%
rename from data/wfns/13C16O/13C16O_exact_PES.txt
rename to data/wfns/13C16O/13C16O_PES.txt
diff --git a/data/wfns/13C16O/13C16O_PES_distance.txt b/data/wfns/13C16O/13C16O_PES_distance.txt
new file mode 100644
index 0000000..d7a4abc
--- /dev/null
+++ b/data/wfns/13C16O/13C16O_PES_distance.txt
@@ -0,0 +1,105 @@
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diff --git a/data/wfns/CO/CO_exact_PES.txt b/data/wfns/CO/CO_PES.txt
similarity index 100%
rename from data/wfns/CO/CO_exact_PES.txt
rename to data/wfns/CO/CO_PES.txt
diff --git a/data/wfns/CO/CO_PES_distance.txt b/data/wfns/CO/CO_PES_distance.txt
new file mode 100644
index 0000000..d7a4abc
--- /dev/null
+++ b/data/wfns/CO/CO_PES_distance.txt
@@ -0,0 +1,105 @@
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diff --git a/data/wfns/DCl/DCL_PES.txt b/data/wfns/DCl/DCL_PES.txt
new file mode 100644
index 0000000..bdd84b5
--- /dev/null
+++ b/data/wfns/DCl/DCL_PES.txt
@@ -0,0 +1,105 @@
+2.55274521
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diff --git a/data/wfns/DCl/DCL_PES_distance.txt b/data/wfns/DCl/DCL_PES_distance.txt
new file mode 100644
index 0000000..d7a4abc
--- /dev/null
+++ b/data/wfns/DCl/DCL_PES_distance.txt
@@ -0,0 +1,105 @@
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diff --git a/data/wfns/DCl/DCl_exact_PES.txt b/data/wfns/DCl/DCl_exact_PES.txt
deleted file mode 100644
index 4f5f423..0000000
--- a/data/wfns/DCl/DCl_exact_PES.txt
+++ /dev/null
@@ -1,105 +0,0 @@
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diff --git a/data/wfns/DF/DF_exact_PES.txt b/data/wfns/DF/DF_PES.txt
similarity index 100%
rename from data/wfns/DF/DF_exact_PES.txt
rename to data/wfns/DF/DF_PES.txt
diff --git a/data/wfns/DF/DF_PES_distance.txt b/data/wfns/DF/DF_PES_distance.txt
new file mode 100644
index 0000000..d7a4abc
--- /dev/null
+++ b/data/wfns/DF/DF_PES_distance.txt
@@ -0,0 +1,105 @@
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diff --git a/data/wfns/F2/F2_exact_PES.txt b/data/wfns/F2/F2_PES.txt
similarity index 100%
rename from data/wfns/F2/F2_exact_PES.txt
rename to data/wfns/F2/F2_PES.txt
diff --git a/data/wfns/F2/F2_PES_distance.txt b/data/wfns/F2/F2_PES_distance.txt
new file mode 100644
index 0000000..d7a4abc
--- /dev/null
+++ b/data/wfns/F2/F2_PES_distance.txt
@@ -0,0 +1,105 @@
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diff --git a/data/wfns/HCl/HCl_exact_PES.txt b/data/wfns/HCl/HCL_PES.txt
similarity index 100%
rename from data/wfns/HCl/HCl_exact_PES.txt
rename to data/wfns/HCl/HCL_PES.txt
diff --git a/data/wfns/HCl/HCL_PES_distance.txt b/data/wfns/HCl/HCL_PES_distance.txt
new file mode 100644
index 0000000..d7a4abc
--- /dev/null
+++ b/data/wfns/HCl/HCL_PES_distance.txt
@@ -0,0 +1,105 @@
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diff --git a/data/wfns/HF/HF_exact_PES.txt b/data/wfns/HF/HF_PES.txt
similarity index 100%
rename from data/wfns/HF/HF_exact_PES.txt
rename to data/wfns/HF/HF_PES.txt
diff --git a/data/wfns/HF/HF_PES_distance.txt b/data/wfns/HF/HF_PES_distance.txt
new file mode 100644
index 0000000..d7a4abc
--- /dev/null
+++ b/data/wfns/HF/HF_PES_distance.txt
@@ -0,0 +1,105 @@
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