<bsecoupling help="Exciton couplings from serialized orbital files" section="sec:bsecoupling">


        <spin help="Spin type for couplings, singlet,triplet,all" default="singlet">all</spin>
        <degeneracy help="Criterium for the degeneracy of two levels" unit="eV" default="0">0</degeneracy>

       <moleculeA help="Properties of molecule A">
                <states help="Number of excitons considered" default="5">1</states>
                <occLevels help="occupied levels for CTstates" default="5">15</occLevels>
                <unoccLevels help="unoccupied levels for CTstates" default="5">15</unoccLevels>
        </moleculeA>

        <moleculeB help="Properties of molecule B">
                <states help="Number of excitons considered" default="5">1</states>
                <occLevels help="occupied levels for CTstates" default="5">15</occLevels>
                <unoccLevels help="unoccupied levels for CTstates" default="5">15</unoccLevels>
         </moleculeB>

</bsecoupling>