N-substituted bis(tetrazol-5-yl)diazenes: Synthesis, spectra, X-ray molecular and crystal structures, and quantum-chemical DFT calculations
作者:Tatiyana V. Serebryanskaya、Vadim E. Matulis、Alexander S. Lyakhov、Sergei V. Voitekhovich、Pavel N. Gaponik、Oleg A. Ivashkevich
DOI:10.1002/hc.20574
日期:——
N-Substituted bis(tetrazol-5-yl)diazenes (substituents are 1-CH3 (3a), 1-Ph (3b), 2-CH3 (3c), and 2-tBu (3d)) were synthesized by oxidative coupling of corresponding 5-aminotetrazoles. All compounds were characterized with 1H and 13C NMR, IR- and UV-spectroscopy, and thermal analysis. Crystal and molecular structures of bis(1-phenyltetra- zol-5-yl)diazene (3b) and bis(2-tert-butyltetrazol-5-yl)diazene
N-取代的双(四唑-5-基)二氮烯(取代基为 1-CH3 (3a)、1-Ph (3b)、2-CH3 (3c) 和 2-tBu (3d))相应的 5-氨基四唑。所有化合物均通过 1H 和 13C NMR、IR 和 UV 光谱以及热分析进行表征。双(1-苯基四唑-5-基)二氮烯(3b)和双(2-叔丁基四唑-5-基)二氮烯(3d)的晶体和分子结构通过单晶X射线衍射确定。这些化合物的分子在固体中是反式异构体。根据X-Ray数据,3b分子是S-trans-S-trans构象异构体,而3d是S-cis-S-cis之一。对顺式和反式异构体的几何结构和相对稳定性以及化合物 3a-d 的稳定构象进行了量子化学研究。© 2010 Wiley Periodicals, Inc. 杂原子化学 21:24–35, 2010; 在线发表于 Wiley InterScience (www.interscience.wiley