Mercury(II) cyanide complexes with alkyldiamines: solid-state/solution NMR, computational, and antimicrobial studies

摘要: Mercury cyanide complexes of alkyldiamines (1–6), [Hg(L)(CN)2] (where L = en (1,2-diaminoethane), pn (1,3-diaminopropane), N-Me-en, N, N′-Me2-en, N′-Et2-en, and N′-ipr2-en), have been synthesized characterized by elemental analysis, IR, 13C, 15N solution NMR in DMSO-d6, as well 15N, 199Hg solid-state spectroscopy. Complexes 1 2 studied computationally, built optimized GAUSSIAN03 using DFT at B3LYP level with LanL2DZ basis set. Binding modes en bn bn = 1,4-diaminobutane) toward Hg(CN)2 are completely different. show chelating binding to Hg(II), while behaves a bridging ligand form polymeric structure, [Hg(CN)2-bn]∞ [B.A. Al-Maythalony, M. Fettouhi, M.I.M. Wazeer, A.A. Isab. Inorg. Chem. Commun., 12, 540 (2009).]. The 13C the demonstrates slight shift −C≡N (0.9 2 ppm) −C–NH2 (0.25 6 ppm) carbon resonances, other resonances relatively unaffected. ...