[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is the stable isotope of hydrogen with relative atomic mass 2.014102 and a natural abundance of 0.0115 atom percent (from Greek deltaepsilonupsilontauepsilonrhoomicronnu, second). It contains a deuteron."}, {"from": "gpt", "value": "[2HH1]"}]