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Table 1 The constants used in the calculations for heteroligand complexes

From: Interaction of microcrystalline chitosan with graphene oxide (GO) and magnesium ions in aqueous solution

log β011 = 6.50 (LH) Protonation constant of MCCh [13, 14]
log β011 = 9.96 (L′H) The first protonation constant of GO for the OH group, determined under the conditions of the current experiment
log β012 = 12.60 (L′H2) The second protonation constant of GO for the COO group, determined under the conditions of the current experiment
log β00-1 = − 13.77 (H−1) pKw
log β10-1 = − 11.70 (MH−1) Hydrolysis constant of Mg2+ [15]
log β110 = 3.29 (6) (ML) The value obtained from previous tests for the system MCCh–Mg2+ [16]
log β111’ = 14.0 (MLL’) In this case, it was assumed that the central atom Mg2+ is surrounded by the ligand molecule L-MCCh and ligand L′-GO