Molecular charge-transfer complexes are examined with emphasis on their electronic states, potential energy curves and spectra. Potential energy curves are calculated for singlet and triplet states of several contact charge-transfer complexes, using the quantum chemistry method of Complete Neglect of Differential Overlap in Spectroscopy, CNDO/S. The Stoke's shifts that may be expected in these complexes are also calculated. Good agreement between the computed and experimentally avallable data is achieved. It is shown that molecular contact charge-transfer complexes form a class of lasers analogous to the well-known rare-gas halide excimers. Although such complexes have been known for years to chemists, mainly from their work on absorption spectra, their potential as laser systems has not been previously investigated. The population inversion mechanism in contact charge-transfer lasers relies on picosecond radiationless relaxation of the lower state. This is a consequence of the additional degrees of freedom inherent in these relatively large polyatomic systems. The excimer systems which have been investigated to present, on the other hand, are mostly diatomics and having only one nuclear degree of freedom, rely on the repulsive nature or thermal dissociation of the ground electronic state for sustaining a population inversion. Contact CT lasers would have radiative emission cross-sections and lifetimes -17 2 of 10 cm*' and lys in the visible or near u.v. and could, therefore, find use as storage lasers, for instance in laser driven nuclear fusion research. A pratical method for pumping such a laser is examined for one typical example and it is estimated that gains of several percent per cm may be expected.