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- Title
Gadolinium(III)-Hydroxy Ladders Trapped in Succinate Frameworks with Optimized Magnetocaloric Effect.
- Authors
Chen, Yan‐Cong; Guo, Fu‐Sheng; Zheng, Yan‐Zhen; Liu, Jun‐Liang; Leng, Ji‐Dong; Tarasenko, Róbert; Orendáč, Martin; Prokleška, Jan; Sechovský, Vladimír; Tong, Ming‐Liang
- Abstract
Two kinds of inorganic gadolinium(III)-hydroxy 'ladders', [2× n] and [3× n], were successfully trapped in succinate (suc) coordination polymers, [Gd2(OH)2(suc)2(H2O)] n ⋅ 2 n H2O ( 1) and [Gd6(OH)8(suc)5(H2O)2] n ⋅4 n H2O ( 2), respectively. Such coordination polymers could be regarded as alternating inorganic-organic hybrid materials with relatively high density. Magnetic and heat capacity studies reveal a large cryogenic magnetocaloric effect (MCE) in both compounds, namely (Δ H=70 kG) 42.8 J kg−1 K−1 for complex 1 and 48.0 J kg−1 K−1 for complex 2. The effect of the high density is evident, which gives very large volumetric MCEs up to 120 and 144 mJ cm−3 K−1 for complexes 1 and 2, respectively.
- Subjects
GADOLINIUM; MACROMOLECULES; SUCCINATES; SUCCINIC acid; MACROCYCLIC compounds
- Publication
Chemistry - A European Journal, 2013, Vol 19, Issue 40, p13504
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.201301221