Pulsed laser irradiation of solid potassium cyanide (KCN) produces, besides free nitrogen and carbon atoms, the molecular species KN and KC which are potential candidates for interstellar species of potassium. Additionally, N₃, N₃⁻, KN₃, C₃, C₃⁻, and KC₃ are produced and isolated in solid noble gases as well as in solid N₂. Molecular potassium nitrene (KN) reacts with dinitrogen in neon and argon matrices after photochemical excitation (λ=470 nm) forming molecular end‐on (C_∞v) and side‐on (C_2v) potassium azide isomers. The side‐on isomer (C_2v) is thermodynamically favored at the CCSD(T)/ma‐def2‐TZVP level of theory. It can be obtained from the end‐on isomer by UV‐irradiation (λ=273 nm).

中文翻译：

---

红外光谱烧蚀氰化钾：出乎意料的简单方法，可制取多氮和聚碳酸酯

固态氰化钾（KCN）的脉冲激光辐照除产生游离氮和碳原子外，还产生了分子种KN和KC，它们是星际钾种的潜在候选物。此外，N ₃，N ₃ ^-，KN ₃，C ₃，C ₃ ^- ，和KC ₃的生产和在固体惰性气体，以及在固体N-分离₂。分子氮烯钾（KN）发生反应，在氖二氮和氩光化学激发后矩阵（λ在最终形成分子= 470纳米）（Ç _∞v）和侧组件（ç _2V）叠氮化钾异构体。在理论上CCSD（T）/ ma-def2-TZVP的水平上，侧向异构体（C _2v）在热力学上受到青睐。它可以通过紫外辐射（λ = 273 nm）从端基异构体获得。