Tricyanomethane and Its Ketenimine Tautomer: Generation from Different Precursors and Analysis in Solution, Argon Matrix, and as a Single Crystal
作者:Klaus Banert、Madhu Chityala、Manfred Hagedorn、Helmut Beckers、Tony Stüker、Sebastian Riedel、Tobias Rüffer、Heinrich Lang
DOI:10.1002/anie.201704561
日期:2017.8.1
photolyzed at low temperatures to produce the corresponding 2H‐azirine and tricyanomethane, which were analyzed by low‐temperature NMR spectroscopy. The latter product was also observed after short thermolysis of the azide precursor in solution whereas irradiation of the azide isolated in an argon matrix did not lead to tricyanomethane, but to unequivocal detection of the tautomeric ketenimine by IR spectroscopy
在低温下将叠氮基亚甲基丙二腈溶液光解,生成相应的2H-叠氮基和三氰基甲烷,并通过低温NMR光谱法对其进行分析。在溶液中叠氮化物前体短时间热解后也观察到了后者的产物,而在氩气基质中分离出的叠氮化物的辐射并没有产生三氰基甲烷,而是首次通过红外光谱法明确检测了互变异构酮亚胺。当由三氰胺钾,稀硫酸和二乙醚产生的广为人知的“水醚”绿色相迅速蒸发并升华时,形成了三氰胺氢鎓和三氰甲烷的混合物,而不是先前声称的酮亚胺互变异构体。在特殊的升华条件下,