A Symmetric Co(N5)2(H2O)4⋅4 H2O High‐Nitrogen Compound Formed by Cobalt(II) Cation Trapping of a Cyclo‐N5− Anion. Issue 16 (22nd March 2017)

• Record Type: Journal Article
• Authors: Zhang, Chong; Yang, Chen; Hu, Bingcheng; Yu, Chuanming; Zheng, Zhansheng; Sun, Chengguo
• Is Part Of: Angewandte Chemie international edition. Volume 56:Issue 16(2017)
• Page Start: 4512
• Page End: 4514
• Publication Date: 2017-03-22
• Subjects: explosives -- high energetic density materials -- metal pentazolate anion complex -- pentazole -- polynitrogen compounds; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201701070
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: The reactions of (N5 )6 (H3 O)3 (NH4 )4 Cl with Co(NO3 )2 ⋅6 H2 O at room temperature yielded Co(N5 )2 (H2 O)4 ⋅4 H2 O as an air‐stable orange metal complex. The structure, as determined by single‐crystal X‐ray diffraction, has two planar cyclo‐N5 − rings and four bound water molecules symmetrically positioned around the central metal ion. Thermal analysis demonstrated the explosive properties of the material. Abstract : Light my fire : The metal pentazolate anion complex Co(N5 )2 (H2 O)4 ⋅4 H2 O was obtained by reacting (N5 )6 (H3 O)3 (NH4 )4 Cl with Co(NO3 )2 ⋅6 H2 O in a methanol/water solution at room temperature. Single‐crystal X‐ray crystallographic characterization and the physical properties of the comburent material are presented.