<p>➀ Empa researchers successfully attached porphyrin molecules with metal centers to graphene nanoribbons with atomic precision, creating a hybrid system;</p><p>➁ The system exhibits magnetic and electronic coupling, enabling applications in molecular electronics, chemical sensors, and quantum technologies;</p><p>➂ The design allows optical and chemical tunability, with potential uses in light-emitting systems and quantum computing spin-based devices.</p>