Acenes consist of benzene molecules (IMAGE) Massachusetts Institute of Technology Caption Acenes consist of benzene molecules — rings made of carbon and hydrogen — fused together in a linear fashion. Using a new approach, the researchers created acenes that produce different colors, depending on their length and the types of chemical groups attached to the carbodicarbene. Credit MIT Usage Restrictions Credit must be given to the creator. No derivatives or adaptations of the work are permitted. License CC BY-ND Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.