Salts with the [NiBr3(L)]− complex anion (L=1-methylimidazole, 1-methylbenzimidazole, quinoline, and triphenylphosphane) and low melting points: A comparative study
作者： Tim Peppel , Alexander Hinz , Martin Köckerling
DOI: 10.1016/J.POLY.2012.08.047
关键词: Crystallography 、 1-Methylimidazole 、 Single crystal 、 Chemistry 、 Inorganic chemistry 、 Quinoline 、 Paramagnetism 、 Ionic liquid 、 Bromide 、 Crystal structure 、 Melting point
摘要: Abstract Four new salts with low melting points of the general formula (EMIm)[NiBr3(L)] (EMIm = 1-ethyl-3-methyl-imidazolium) L = N-methylimidazole (NMIm), N-methylbenzimidazole (NMBIm), quinoline (quin), and triphenylphosphane (PPh3) were prepared characterized by means elemental analysis, IR, NMR, UV–vis spectroscopy. Magnetic properties deduced from NMR data using EVANS method. All four compounds are paramagnetic magnetic moments close to spin-only values tetrahedrally coordinated Ni(II) ion. Molecular crystal structures obtained single X-ray diffraction investigations. Melting determined have between 110 °C, (EMIm)[NiBr3(NMIm)] 168 °C, (EMIm)[NiBr3(PPh3)]. They exceed maximum temperature required call them “Ionic Liquids”. Decomposition has been found occur above 200 °C depend largely on type organic ligand Ni(II).
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sci-hub.se 参考文章(37)
A. Bencini, C. Benelli, D. Gatteschi, C. Zanchini, ESR spectra of low-symmetry high-spin cobalt(II) complexes: Part 5. Pseudotetrahedral tetra-n-butylammonium tribromo (quinoline) cobaltate(II) and the calculation of the a2 tensor Journal of Molecular Structure. ,vol. 60, pp. 401- 404 ,(1980) , 10.1016/0022-2860(80)80098-6
A. Pacault, J. Hoarau, A. Marchand, Aspects Récents DU Diamagnétisme Advances in Chemical Physics. pp. 171- 238 ,(2007) , 10.1002/9780470143490.CH5
Naida S. Gill, R. S. Nyholm, 802. Complex halides of the transition metals. Part I. Tetrahedral nickel complexes Journal of The Chemical Society (resumed). pp. 3997- 4007 ,(1959) , 10.1039/JR9590003997
Sandip K Sur, Measurement of magnetic susceptibility and magnetic moment of paramagnetic molecules in solution by high-field Fourier transform NMR spectroscopy Journal of Magnetic Resonance. ,vol. 82, pp. 169- 173 ,(1989) , 10.1016/0022-2364(89)90178-9
Tim Peppel, Martin Köckerling, Salts with the 1,3‐Dibutyl‐2,4,5‐trimethyl‐imidazolium Cation: (DBTMIm)X (X = Br, PF6) and (DBTMIm)2[MBr4] (M = Co, Ni) Zeitschrift für anorganische und allgemeine Chemie. ,vol. 636, pp. 2439- 2446 ,(2010) , 10.1002/ZAAC.201000196
B. N. Thakur, R. S. Prasad, N. K. Jha, Elbashir E. Ali, Studies on Some Substituted and Substituted Mixed Halomanganates(II) Synthesis and Reactivity in Inorganic and Metal-organic Chemistry. ,vol. 18, pp. 197- 214 ,(1988) , 10.1080/00945718808060537
Christian Roth, Tim Peppel, Koichi Fumino, Martin Köckerling, Ralf Ludwig, Die Bedeutung von Wasserstoffbrücken für die Struktur ionischer Flüssigkeiten – Einkristall‐Röntgenstrukturanalyse sowie Transmissions‐ und ATR‐Spektroskopie im Terahertz‐Bereich Angewandte Chemie. ,vol. 122, pp. 10419- 10423 ,(2010) , 10.1002/ANGE.201004955
Malcolm Gerloch, Lyall R. Hanton, Mark R. Manning, Tetrahedral complexes of nickel(II): electronic spectra, γ and π bonding, andthe electroneutrality principle Inorganica Chimica Acta. ,vol. 48, pp. 205- 214 ,(1981) , 10.1016/S0020-1693(00)90092-6
Qing-Guo Zhang, Jia-Zhen Yang, Xing-Mei Lu, Jin-Song Gui, Ming Huang, Studies on an ionic liquid based on FeCl3 and its properties Fluid Phase Equilibria. ,vol. 226, pp. 207- 211 ,(2004) , 10.1016/J.FLUID.2004.09.020
Jean Michel Savariault, Jean Galy, Juan Manuel Gutierrez-Zorrilla, Pascual Roman, Preparation et structure cristalline et moleculaire du trichloroquinoleinecuprate(II) de quinoleinium, (C9H7NH)[CuCl3(C9H7N)] Journal of Molecular Structure. ,vol. 176, pp. 313- 322 ,(1988) , 10.1016/0022-2860(88)80251-5