title: Gadolinium(III)-hydroxy ladders trapped in succinate frameworks with optimized magnetocaloric effect.
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·2nH2O (1) and [Gd6(OH)8(suc)5(H2O)2 ]n·4n 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 (ΔH=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.
authors: Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry & Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275 (P.R. China), Fax: (+86) 20-8411-2245.
authors: Yan-Cong
authors: YC
authors: Chen
authors: Fu-Sheng
authors: FS
authors: Guo
authors: Yan-Zhen
authors: YZ
authors: Zheng
authors: Jun-Liang
authors: JL
authors: Liu
authors: Ji-Dong
authors: JD
authors: Leng
authors: Róbert
authors: R
authors: Tarasenko
authors: Martin
authors: M
authors: Orendáč
authors: Jan
authors: J
authors: Prokleška
authors: Vladimír
authors: V
authors: Sechovský
authors: Ming-Liang
authors: ML
authors: Tong
keywords: coordination polymers; gadolinium; magnetic properties; magnetocaloric effect; succinate