. Author manuscript; available in PMC: 2010 Oct 1.

Published in final edited form as: J Solid State Chem. 2009 Oct 1;182(10):2698–2706. doi: 10.1016/j.jssc.2009.06.042

Table 4.

¹³C NMR spectra data (δ, ppm) ^a of the free iminodiacetateligand and coordination polymers 1–3 in D₂O.

	Free ida^b (pH = 2.0)	1^b (pH = 2.0)	3^b (pH = 2.0)	2^b (pH = 7.0)	Free ida^b (pH = 7.0)
(CO₂)	173.11	173.45 (0.34)	173.84 (0.73)	181.48 (7.39)	174.09
-CH₂	51.05	51.16 (0.11)	51.48 (0.43)	55.79 (4.02)	51.77

Δδ values in brackets are chemical shifts of 1–3 compared to the corresponding carbons in the free iminodiacetate at the same pH.

¹³C NMR spectra of 1–3 in D₂O solution were taken at autogenous pH, and ¹³C NMR spectra of the corresponding free iminodiacetate at the same pH values.