11. The structure, and hence its basicity , of sodium methoxide in solution depends on the solvent. 12. It is developed to explain the extraordinary stability of guanidinium cation and high basicity of the Guanidine. 13. Nuclephilicity and basicity are linked and the more nucleophilic a molecule becomes the greater said nucleophile s basicity. 14. Nuclephilicity and basicity are linked and the more nucleophilic a molecule becomes the greater said nucleophile s basicity . 15. Y-aromaticity is a concept developed to explain the extraordinary stability and high basicity of the guanidinium cation. 16. Alkalinity is related to the pH of a solution, ( its basicity ) but measures a different property. 17. The Edwards equation relates the nucleophilic power to " polarisability " and " basicity ". 18. This increase in basicity causes problems for S N 2 reaction mechanisms when the solvent of choice is protic. 19. H is a measure of the basicity of the nucleophile relative to protons, as defined by the equation: 20. For this reason, the basicity of amines in these aprotic solvents is almost solely governed by the electronic factors.