NOVELTY - Composition comprises a molecular glass mixture of non-polymeric compounds exhibiting a single thermal transition free of phase separation where the molecular glass mixture is characterized as: (a) amorphous; (b) solid at about 20 degrees C; and (c) comprises at least two different compounds each different compound having at least two linking components. Each linking component joins one multi-valent organic nucleus with at least two organic nuclei. One of the multivalent organic nucleus and the organic nuclei is a charge transport, a luminescent moiety, or its combination.    USE - The composition is useful for manufacturing organic electronic device, e.g. an organic light emitting diode, a photonic device, a solar cell device, or a field-effect transistor (all claimed). It can also be used for manufacturing photoresist or molecular optoelectronic devices, including light-emitting diodes, field-effect transistors, and solar cells; and useful in advanced materials for xerography, two-photo absorption, luminescent devices, and photorefraction.    ADVANTAGE - The charge-transporting molecular glass mixtures, luminescent molecular glass mixtures, and its combinations can be purified by simple and economic techniques, and can be easily dissolved in simple organic solvents. Additionally, the charge-transporting molecular glass mixtures, luminescent molecular glass mixtures, and its combinations are volatile and stable enough for vacuum deposition coatings; have both sufficient electron-transporting and hole-transporting properties to support monolayer or simple device configuration; and have thermal properties that can be controlled independent of the structure of the core charge-transporting group, the luminescent group, or its combination.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for:    (1) a process of making a molecular glass mixture which involves pre-purifying all the starting materials by recrystallization, distillation, sublimation, or other purification methods; or a process of making a molecular glass mixture which involves: (a) reacting 2 moles equivalent of an asymmetric bisanhydride with 1 mole equivalent of a diamine to form an isomeric asymmetric mixture; where the diamine is electron-transporting, hole-transporting, luminescent, fluorescent, phosphorescent, or its combination; and (b) reacting the formed isomeric asymmetric mixture with a stoichiometric mixture of monoamines; where the monoamine mixture contains electron conductive moieties, hole conductive moieties, luminescent moieties, or its combination; and    (2) an organic electronic device where the layers contain a hole-transporting, an electron-transporting, a bipolar, a luminescent molecular glass mixture, or its combination.