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. 2016 Mar 31;10:14. doi: 10.1186/s13065-016-0160-5

Table 1.

Logarithms of overall formation constants in the CoII(Himid)(L-α-Amac)nH2O system and UV–Vis parameters

System m l l′ h Refinement results (log10 β mll′h) σ b λ max (ε) nm (L mol−1 cm−1)
Co(H2O)2+ a6 1 0 0 −1 −8.45(3) 512 (5)
Imidazolea 0 0 1 1 7.28(1) 2.89
1 0 1 0 2.82(2) 1.49 514 (6)
1 0 2 0 4.94(2) 506 (16)
1 0 3 0 6.76(9) 491 (38)
1 0 4 0 8.29(13)
1 0 5 0 9.68(14)
Alaninea 0 1 0 1 9.75(1) 4.59
0 1 0 2 12.13(1)
1 1 0 0 4.20(1) 5.70 508 (8)
1 2 0 0 7.65(1) 491 (11)
1 3 0 0 9.92(1) 500 (19)
1 1 1 0 6.97(2) 1.32 505 (15)
1 2 1 0 9.94(4) 495 (20)
Asparagine 0 1 0 1 8.66(1) 5.99
0 1 0 2 10.96 (1)
1 1 0 0 4.25(1) 3.47 507 (8)
1 2 0 0 7.67(1) 485 (10)
1 3 0 0 9.23(1) 500 (17)
1 1 1 0 6.89(1) 2.17 503 (20)
1 2 1 0 9.70(1) 491 (22)

Temp. 25.0 ± 0.1 °C, I = 0.5 mol L−1 (KNO3). Programs: Hyperquad 2008 and HypSpec. Standard deviations at the last decimal points—in parentheses. β mll’h = [MmLlL′l′Hh]/[M]m[L]l[L′]l′[H]h, where M = Co(II), L = AmacH-1, L′ = Himid, H = proton

a Results for Co(H2O)2+6, Ala and Imidazole taken from previous paper [8]

b σ statistical residual parameter of Hyperquad [27]