diff --git a/potentials/MOH.nb3b.harmonic b/potentials/MOH.nb3b.harmonic
new file mode 100644
index 0000000000..1c2d2a6244
--- /dev/null
+++ b/potentials/MOH.nb3b.harmonic
@@ -0,0 +1,20 @@
+# nb3b/harmonic (nonbonded 3-body harmonic) parameters for various elements
+#
+# multiple entries can be added to this file, LAMMPS reads the ones it needs
+#
+# these entries are in LAMMPS "real" units:
+#   k [kcal/mol/rad^2], theta_0 [degrees], cutoff [Angstroms]
+#
+# format of a single entry (one or more lines):
+#   element 1 (central atom), element 2, element 3, 
+#   k_theta, theta_0, cutoff
+#
+# (ijj)-->determines cutoff for i-j distance
+# (jik)-->determines k, theta_0 for i-j-k angle term
+#
+# ielem jelem kelem	k     theta_0 cutoff
+   O     M     M  	0.00    0.00    2.80
+   O     H     H        0.00    0.00    1.20
+   O     M     H  	6.35  120.00	0.00
+   O     H     M  	6.35  120.00    0.00
+	
diff --git a/potentials/MOH.nb3bharmonic b/potentials/MOH.nb3bharmonic
new file mode 100644
index 0000000000..1c2d2a6244
--- /dev/null
+++ b/potentials/MOH.nb3bharmonic
@@ -0,0 +1,20 @@
+# nb3b/harmonic (nonbonded 3-body harmonic) parameters for various elements
+#
+# multiple entries can be added to this file, LAMMPS reads the ones it needs
+#
+# these entries are in LAMMPS "real" units:
+#   k [kcal/mol/rad^2], theta_0 [degrees], cutoff [Angstroms]
+#
+# format of a single entry (one or more lines):
+#   element 1 (central atom), element 2, element 3, 
+#   k_theta, theta_0, cutoff
+#
+# (ijj)-->determines cutoff for i-j distance
+# (jik)-->determines k, theta_0 for i-j-k angle term
+#
+# ielem jelem kelem	k     theta_0 cutoff
+   O     M     M  	0.00    0.00    2.80
+   O     H     H        0.00    0.00    1.20
+   O     M     H  	6.35  120.00	0.00
+   O     H     M  	6.35  120.00    0.00
+	
diff --git a/potentials/README b/potentials/README
index e2f19a1c28..f7e4add1c9 100644
--- a/potentials/README
+++ b/potentials/README
@@ -24,6 +24,7 @@ eam.alloy     EAM multi-element alloy, DYNAMO setfl format
 eam.fs	      Finnis-Sinclair EAM format (single element or alloy)
 meam	      modified EAM (MEAM) library and individual elements/alloys
 meam.spline   modified EAM (MEAM) spline potential
+nb3b.harmonic nonbonded 3-body harmonic potential
 reax	      ReaxFF potential (see README.reax for more info)
 sw	      Stillinger-Weber potential
 tersoff	      Tersoff potential