Atomic Structure of Supramolecular Ink (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption Single crystal X-ray diffraction image of blue-emitting supramolecular ink (18C6@K)2HfBr6) reveals the atomic structure of a 1-2 nanometer unit cell. These tiny molecular “building block” structures within the ink self-assemble in solution, enabling the material to achieve stable and high-purity synthesis at low temperatures. Credit Peidong Yang and Cheng Zhu/Berkeley Lab. Courtesy of Science. Usage Restrictions Credit Peidong Yang and Cheng Zhu/Berkeley Lab. Courtesy of Science. License Original content 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.