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Binary Polyazides of Cadmium and Mercury

机译:镉和汞的二元聚叠氮化物

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Following our interest in binary element-nitrogen compounds we report here on the synthesis and comprehensive characterization (M.p., IR/Raman, elemental analysis, N-14/Cd-133/Hg-199 NMR) of tri- and tetraazido cadmate and mercurate anions [E(N-3)((2+n))](n-) (E=Cd, Hg; n=1, 2) in a series of [Ph4P](+) and [PNP](+) ([PNP](+)=bis(triphenylphosphine)iminium) salts. The azide/chloride exchange in CH2Cl2 as well as the formation of tetrazolate salts in CH3CN solutions of the polyazido mercurates were investigated. Single crystal X-ray structures of all new compounds, and for comparison [Ph4P][Cd-2(N-3)(5)(H2O)], were determined. Moreover, the synthesis of anhydrous cadmium(II) azide and its DMSO adduct is presented for the first time. For a better understanding of structure and bonding in E(N-3)(2), [E(N-3)(3)](-) and [E(N-3)(4)](2-), theoretical calculations at the M06-2X/aug-cc-pVDZ level were carried out.
机译:在我们对二元元素氮化合物感兴趣之后,我们在此报告了三叠氮基和四叠氮基镉酸根和汞酸根阴离子的合成和全面表征(Mp,IR /拉曼,元素分析,N-14 / Cd-133 / Hg-199 NMR)一系列[Ph4P](+)和[PNP](+)中的[E(N-3)((2 + n))](n-)(E = Cd,Hg; n = 1,2)( [PNP](+)=双(三苯基膦)亚胺盐。研究了CH2Cl2中的叠氮化物/氯化物交换以及聚叠氮基汞酸盐的CH3CN溶液中四唑酸盐的形成。确定了所有新化合物的单晶X射线结构,并比较了[Ph4P] [Cd-2(N-3)(5)(H2O)]。此外,首次提出了无水叠氮化镉(II)及其DMSO加合物的合成。为了更好地理解E(N-3)(2),[E(N-3)(3)](-)和[E(N-3)(4)](2-)中的结构和键,在M06-2X / aug-cc-pVDZ级别进行了理论计算。

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