// try to read a Molecule
IAtomContainer mol = (AtomContainer) cor.read(new AtomContainer());
if(mol!=null )
try{
IAtomContainerSet newSet = new AtomContainerSet();
newSet.addAtomContainer(mol);
chemModel = new ChemModel();
chemModel.setMoleculeSet(newSet);
if (chemModel == null) {
error = "The object chemModel was empty unexpectedly!";
}