Studies on solid state synthesis and the oxygenation property of cobalt (II) Schiff base (vanilline polyamine) complexes |
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| Authors: | Furong Xiao Lu Chen Jide Wang Ronglan Wu Fan Yue Jing Li |
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| Institution: | (1) School of Chemistry and Chemical Engineering, Xinjiang University, Urumqi, 830046, China |
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| Abstract: | Three new cobalt complexes were synthesized by solid-state reaction at room temperature and the resultant Co complexes reacted
with two equivalent oxygen molecules at room temperature to produce the oxygenated complexes Co·(L1)2·(O2)2](NO3)2·2H2O (L1 = N, N’-bis(4-hydroxyl-3-methoxy-benzyl)-diethylenetriamine), Co·(L2)2·(O2)2](NO3)2·2H2O (L2 = N, N’-bis(4-hydroxyl-3-methoxy-benzyl)-triethylenetetramine), and Co·(L3)2·(O2)2](NO3)2·2H2O (L3 = N, N’-bis(4-hydroxyl-3-methoxy-benzyl-tetraethylenepentamine). The oxygenated complexes were characterized by elemental
analysis, IR (Infrared), 1H-NMR (Nuclear Magnetic Resonance), and UV-Vis (Ultraviolet Visual) spectrometry, and TG/DTA (Thermogravimetry/Differential
Thermal Analysis) analysis, and molar conductance. The coordinated oxygen contents in the oxygenated complexes were also determined
by weight method. It was supposed that only one O2 molecule coordinated to the Co ion forming a superoxo type oxygenated complex.
Translated from Acta Chimica Sinica, 2006, 64(15): 1517–1522 (in Chinese) |
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| Keywords: | solid state reaction oxygen carrier Schiff base cobalt oxygenation property |
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