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Abstract
The fixation of CO 2 using guanidine bases; 1,1,3,3-tetramethylguanidine (TMG) and 5,7-triazabicyclo[4.4.0] dec-5-ene (TBD) has been investigated. Solution Nuclear magnetic resonance (NMR) studies were carried out for the reaction between CO 2 and the guanidine bases at normal temperature and pressure, i.e Ca. 30 °C and 1 atm. Analysis of results obtained using 1- dimentional 13 C NMR and 2-dimentional 15 N (HMBC) both indicated successful reaction between CO 2 and TBD and also CO 2 with TMG. Both products were observed to be stable at room temperature and pressure. Based on the results obtained, it was concluded that, the CO 2 can be fixed with TMG and TBD at normal conditions of temperature and pressure. Finally it was also proposed that, the method used could be useful for the uptake and release of atmospheric CO 2 . Keywords: Carbon dioxide, Chemical fixation, Heteronuclear Multiple-Bond Correlation Tetramethylguanidine, Triazabicyclo decene
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