Metaphosphorous acid (HOPO) , a heavy analogue of nitrous acid (HONO), has been generated in syn‐ and anti‐ conformations in the gas phase. Surprisingly, anti‐ HOPO is highly unstable and it undergoes rapid rotamerization to syn‐HOPO via hydrogen‐atom tunneling (HAT) with a lifetime of 10 min in N₂‐matrix at 2.8 K. More information can be found in the Communication by X. Zeng et al. on page 8205.

中文翻译：

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封面：偏亚磷酸中的氢原子隧穿（Eur。J. 37/2020）

偏磷酸（ HONO）是亚硝酸的重类似物（HONO），已在气相中以顺式和反式构象生成。令人惊讶的是，抗HOPO高度不稳定，并且在2.8 K的N ₂基体中通过氢原子隧穿（HAT）经历了快速旋转化成合成HOPO，寿命为10分钟。更多信息，请参见X通讯。曾eng等。在第8205页。