Photochemistry of Tetrasulfur Tetranitride: Laser Flash Photolysis and Quantum Chemical Study
作者： Elena A. Pritchina , Daria S. Terpilovskaya , Yuri P. Tsentalovich , Matthew S. Platz , Nina P. Gritsan
DOI: 10.1021/IC3000153
关键词: Chemistry 、 Matrix isolation 、 Cyclic compound 、 Flash photolysis 、 Photochemistry 、 Photodegradation 、 Tetrasulfur tetranitride 、 Photochromism 、 Quantum yield 、 Isomerization
摘要: The photochemistry of tetrasulfur tetranitride (1) was studied in hexane solution by the laser flash photolysis technique (LFP). experimental findings were interpreted using results previous matrix isolation studies (Pritchina, E.A.; Gritsan, N.P.; Bally, T.; Zibarev, A.V. Inorg. Chem.2009, 48, 4075) and high-level quantum chemical calculations. LFP produces two primary intermediates, one which is boat-shaped 8-membered cyclic compound (2) other 6-membered S3N3 carrying an exocyclic (S)–N═S group (3). products 2 3 absorb a second photon undergo transformation to cycle (N)–S≡N (4), very unstable converts back intermediate 3. yield product formation close unity even though photodegradation 1 low (∼0.01). Thus, photochromic undergoing thermally reversible photochemical isomerization. The...
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