Observation of Perfluoromethylnitrene in Cryogenic Matrixes
Observation of Perfluoromethylnitrene in Cryogenic Matrixes
复制标题
低温基质中全氟甲基氮烯的观察
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
M. Platz
中科院分区：
文献类型：
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作者：
N. Gritsan;I. Likhotvorik;Zhendong Zhu;M. Platz
在6−10K下，CF3N3在正戊烷中的光解(2 54 Nm)产生了一个持久的电子顺磁共振谱，该谱是以8620G为中心的三重态N的典型特征，该谱(|D/HC|=1.736 cm-1)属于三重态CF3−N，与已报道的三重态NH(|D/HC|=1.863 cm-1)和CH3-N(|D/HC|=1.720 cm-1)非常相似.叠氮化物(λmax=2 5 7 nm)在2 5 4 nm光照射下分解，同时在342、347.5和35 4 nm处形成尖锐的结构吸收带。根据与CH3N光谱的相似性和含时密度泛函理论(B3LYP)的计算，将UV谱带归属于三重态Nitene CF3N。
Photolysis (254 nm) of CF3N3 in pentane at 6−10 K produced a persistent electron paramagnetic resonance spectrum typical of a triplet nitrene centered at 8620 G. The spectrum (|D/hc| = 1.736 cm-1) is attributed to triplet CF3−N, and is very similar to that of triplet NH (|D/hc| = 1.863 cm-1) and CH3-N (|D/hc| = 1.720 cm-1) which were reported previously. CF3N3 was also deposited in an argon matrix at 14 K. The azide (λmax = 257 nm) was decomposed by exposure to 254 nm light with the concurrent formation of sharp, structured absorption bands at 342, 347.5, and 354 nm. The UV bands are assigned to the triplet nitrene CF3N on the basis of its similarity to the spectrum of CH3N and time-dependent density functional theory (B3LYP) calculations.