Fascinating 3D energetic [Ag2(N5)2(EDA)]n: filling the ethylenediamine molecules into a [Ag(N5)]n framework. Issue 10 (16th February 2022)

• Record Type: Journal Article
• Authors: Zhang, Xiaopeng; Hou, Tianyang; Lin, Qiuhan; Wang, Pengcheng; Li, Dongxue; Xu, Yuangang; Lu, Ming
• Is Part Of: CrystEngComm. Volume 24:Issue 10(2022)
• Page Start: 1900
• Page End: 1906
• Publication Date: 2022-02-16
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/d2ce00086e
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : The ethylenediamine (EDA) molecules are "filled" into [Ag(N5 )] n to synthesize an interesting 3D motif, [Ag2 (N5 )2 (EDA)] n . Moreover, the fantastic architectures and properties of the three 3D Ag–N5 frameworks are compared. Abstract : An interesting 3D energetic motif based on Ag(i ) ion, cyclo -pentazolate anion ( cyclo -N5 − ) and ethylenediamine (EDA), namely, [Ag2 (N5 )2 (EDA)] n, was prepared by embedding the ethylenediamine molecules into the [Ag(N5 )] n structure. The architecture was determined by single-crystal X-ray diffraction. The onset decomposition temperature of [Ag2 (N5 )2 (EDA)] n was 6.4 °C higher than that of [Ag(N5 )] n and 14.6 °C higher than that of [Ag3 (N5 )4 ] n · n [Ag(NH3 )2 ]. The detonation performance ( D = 6.272 km s −1, P = 23.51 GPa) of [Ag2 (N5 )2 (EDA)] n was between that of [Ag(N5 )] n and [Ag3 (N5 )4 ] n · n [Ag(NH3 )2 ]. The insertion of EDA molecules resulted in a significant reduction of the mechanical sensitivity compared with extremely sensitive [Ag(N5 )] n . It is an effective way to improve the stability of pentazolate complexes using amino-containing small molecules with cyclo -N5 − to form bi-ligand energetic metal–inorganic frameworks.