diff --git a/intermol/MoleculeType.py b/intermol/MoleculeType.py
deleted file mode 100644
index d09e0dba..00000000
--- a/intermol/MoleculeType.py
+++ /dev/null
@@ -1,85 +0,0 @@
-from orderedset import OrderedSet
-from hashmap import HashMap
-
-
-class MoleculeType(object):
-    """An abstract container for molecules of one type
-    """
-    def __init__(self, name):
-        """Initialize the MoleculeType container
-
-        Args:
-            name (str): the name of the moleculetype to add
-        """
-        self.name = name
-        self.moleculeSet = OrderedSet()
-        self.bondForceSet = HashMap()
-        self.pairForceSet = HashMap()
-        self.angleForceSet = HashMap()
-        self.dihedralForceSet = HashMap()
-        self.torsiontorsionForceSet = HashMap()
-        self.constraints = HashMap()
-        self.exclusions = HashMap()
-        self.settles = None
-        self.nrexcl = None
-
-    def addMolecule(self, molecule):
-        """Add a molecule into the moleculetype container
-
-        Args:
-            molecule (Molecule): the molecule to append
-        """
-        self.moleculeSet.add(molecule)
-
-    def removeMolecule(self, molecule):
-        """Remove a molecule from the system.
-
-        Args:
-            molecule (Molecule): remove a molecule from the moleculeType
-        """
-        self.moleculeSet.remove(molecule)
-
-    def getMolecule(self, molecule):
-        """Get a molecule from the system
-
-        Args:
-            molecule (Molecule): retrieve an equivalent molecule from the moleculetype
-        """
-        return get_equivalent(self.moleculeSet, molecule, False)
-
-    def addForce(self, force):
-        """Add a forces to the moleculeType
-
-        Args:
-            forces (AbstractForce): Add a forces or contraint to the moleculeType
-        """
-        self.forceSet.add(force)
-
-    def removeForce(self, force):
-        """Remove a forces from the moleculeType
-
-        Args:
-            forces (AbstractForce): Remove a forces from the moleculeType
-        """
-        self.forceSet.remove(force)
-
-    def getForce(self, force):
-        """Get a forces from the moleculeType
-
-        Args:
-            forces (AbstractForce): Retrieve a forces from the moleculeType
-        """
-        return get_equivalent(self.forceSet, force, False)
-
-    def setNrexcl(self, nrexcl):
-        """Set the nrexcl
-
-        Args:
-            nrexcl (int): the value for nrexcl
-        """
-        self.nrexcl = nrexcl
-
-    def getNrexcl(self):
-        """Gets the nrexcl
-        """
-        return self.nrexcl