Superparamagnetic Ironoxide Nanoparticles via Ligand Exchange Reactions: Organic 1,2-Diols as Versatile Building Blocks for Surface Engineering

Table 1

TGA data and calculation parameters for 𝐍𝐏𝟑𝐚-𝐍𝐏𝟑𝐝, 𝐍𝐏𝟑𝐟.

Parameter	𝐍𝐏𝟑𝐚	𝐍𝐏𝟑𝐛	𝐍𝐏𝟑𝐜	𝐍𝐏𝟑𝐝	𝐍𝐏𝟑𝐟
𝑟particle	3.92 nm	3.59 nm	5.15 nm	3.92 nm	8.61 nm
𝑉particle	252.32 nm^3	193.81 nm^3	572.15 nm^3	252. nm^3	2668.95 nm^3
𝑆particle	193.10 nm^2	161.96 nm^2	333.29 nm^2	193.10 nm^2	930.49 nm^2
𝑚particle	1.24⋅10^-18 g	9.50⋅10^-19 g	2.80⋅10^-18 g	1.24⋅10^-18 g	1.31⋅10^-17 g
𝑎ligand	0.75 nm	0.29 nm	0.40 nm	0.75 nm	0.26 nm
𝑛ligand	343	1926	2083	343	14888
𝑛ligandTGA	372	1946	2098	332	15336
𝑛ironcenters	1592	1307	2899	1592	8662
𝑛outerFe2O3	2387	1961	4349	2387	12993
𝑛Fe2O3	4662	3581	10572	4662	49317
CALCmassloss	13.64 w%	43.54 w%	24.78 w%	16.76 w%	51.20 w%
TGAmassloss	14.60 w%	43.80 w%	24.91 w%	16.29 w%	51.94 w%