Results 121 to 130 of about 10,804 (151)
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Energetics of intrachain salt‐linkage formation in collagen
Biopolymers, 1990AbstractThe energy of formation of salt linkages between Arg or Lys with Asp or Glu in a polypeptide chain having the collagen fold have been estimated using the fully empirical energy minimization scheme AMBER. The polypeptide was considered both in an isolated and a hydrated triple helical state.
E P, Katz, C W, David
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Energetic Silver Salts with 5‐Aminotetrazole Ligands
Chemistry – A European Journal, 2009AbstractMethylation of 5‐amino‐1H‐tetrazole (1) gives 1‐methyl‐5‐amino‐1H‐tetrazole (2) and 2‐methyl‐5‐amino‐1H‐tetrazole (3). A new family of energetic silver complexes based on ligands 1, 2 and 3 with perchlorate and nitrate anions (10–15) were synthesized and characterized by using IR, Raman, and NMR (1H, 13C, 14N, and 35Cl NMR) spectroscopy ...
Konstantin, Karaghiosoff +2 more
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Energetic Salts of Cubane-1,4-Dimethylnitrocarbamate
Inorganic ChemistrySeveral salts of cubane-1,4-dimethylnitrocarbamate (CMNC) were synthesized. The divalent CMNC is deprotonated by alkaline, alkaline earth metal, and nonmetal bases to form the corresponding salts. The compounds were characterized and analyzed by multinuclear NMR and IR spectroscopy, mass spectrometry, elemental analysis, single crystal X-ray, and ...
Andreas Bartonek +2 more
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Syntheses of Energetic cyclo‐Pentazolate Salts
Chemistry – An Asian Journal, 2019AbstractThree energetic salts of cyclo‐N5− were synthesized via a metathesis reaction of barium pentazolate and sulfates which was driven by the precipitation of BaSO4. All the energetic cyclo‐N5− salts were characterized by single‐crystal X‐ray diffraction, infrared (IR), 1H and 13C multinuclear NMR spectroscopies, thermal analysis (TGA and DSC), and ...
Lili Tian +4 more
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Energetic Salts Based on Dipicrylamine and Its Amino Derivative
Chemistry - A European Journal, 2011AbstractEnergetic salts based on dipicrylamine and its amino derivative were synthesized. All salts were fully characterized by multinuclear NMR spectroscopy (1H, 13C), vibrational spectroscopy (IR), and elemental analysis. Ethylenediammonium di‐DPA (DPA=dipicrylamine) and 1,3‐diaminoguanidinium DPA were further confirmed by single‐crystal X‐ray ...
Haifeng Huang +2 more
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Energetics of cancrinite: Effect of salt inclusion
Microporous and Mesoporous Materials, 2007Abstract With its large 12-membered ring channel structure and the periodic arrangement of its e-cage, cancrinite can host molecular water and a variety of guest anions such as nitrate, carbonate, chloride, and hydroxide. A series of cancrinite samples containing varying amounts of nitrate, carbonate, and water were investigated using high ...
Qingyuan Liu +3 more
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Energetic Salts of Symmetrical Dimethylhydrazine (SDMH)
European Journal of Inorganic Chemistry, 2011AbstractN,N′‐Dimethylhydrazine and several of its salts with energetic anions were synthesized and fully characterized by elemental analysis, DSC, mass spectrometry, multinuclear NMR (1H, 13C, and 15N) spectroscopy, and vibrational (Raman, IR) spectroscopy.
Carles Miró Sabaté, Henri Delalu
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Energetic Quaternary Salts Containing Bi(1,2,4-triazoles)
Inorganic Chemistry, 2005New energetic salts (2, 3, 9, 10, and 11) were synthesized via the protonation of 4,4'-bi(1,2,4-triazole) or N-4-(1,2,4-triazole)-N-3-(4-methyl-1,2,4-triazole)amine with nitric acid or perchloric acid or 5-nitro-tetrazole. The structures of 4,4'-bi(1,2,4-triazolium) nitrate (2), N,N-dimethyl-N'-(5-methyl-tetrazole)methanimidamide (8), and N-4-(1,2,4 ...
Hong, Xue +2 more
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Simple, Nitrogen-Rich, Energetic Salts of 5-Nitrotetrazole
Inorganic Chemistry, 2008A new family (ammonium, 1, hydrazinium, 2, guanidinium, 3, aminoguanidinium, 4, diamino-guanidinium, 5, and triaminoguanidinium, 6) of simple, nitrogen-rich energetic salts based on 5-nitro-2 H-tetrazole (HNT) were synthesized. In addition, the hemihydrate of 1 (1a) and the hydrate of 6 (6a) were also isolated.
Thomas M, Klapötke +4 more
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Tetraanionic Nitrogen‐Rich Tetrazole‐Based Energetic Salts
Chemistry – An Asian Journal, 2013Abstract1,1,3,3‐Tetra(1H‐tetrazol‐5‐yl)propane‐based energetic salts were synthesized in a simple and straightforward manner. The structures of these new salts were determined by 1H and 13C NMR spectroscopy, IR spectroscopy, MS, and elemental analysis.
Dharavath, Srinivas +3 more
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