首页|Effect of lanthanide contraction on a series of"sulfate-templated"transition-rare-earth metal clusters:Synthesis,structures and magnetic properties

Effect of lanthanide contraction on a series of"sulfate-templated"transition-rare-earth metal clusters:Synthesis,structures and magnetic properties

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
Twelve novel transition-rare-earth metal clusters,formulated as[Ni18Pr14(μ3OH)14(dmpa)10(mmt)10(SO4)4(CH3COO)16]·9CH3OH·5H2O(1,H3dmpa=dimethylolpropionic acid,and Hmmt=2-mercapto-5-methyl-1,3,4-thiadiazole)[Ni36RE102(OH)138(mmt)18(Hdmpa)30(H2dmpa)12(CH3COO)72(NO3)36(SO4)18(H2O)30]·Br6(RE=Nd(2),Sm(3),Eu(4)and Gd(5))[Ni12RE10(μ3-OH)10(dmpa)8(mmt)8(SO4)2(CH3COO)8(H2O)4]·8CH3OH·7H2O(RE=Tb(6),Dy(7),Ho(8),Er(9)and Y(10))[Ni8Pr8(μ3-OH)8(mmt)8(Hdpga)16(CH3COO)8]·8CH3OH(11,H2dpga=diphenyl-glycolic acid),and[Ni16Tb6(μ3-OH)24(mmt)8(Hdpga)4(dpga)4(CH3COO)2(NO3)4(H2O)2]·12CH3OH·5H2O(12),were synthesized sol-vothermally by using different ligand combinations and rare earth nitrates.X-ray crystal structure an-alyses reveal that complexes 1 and 12 possess sandwich-like structure.Compounds 2-5 are isostructural and feature a hexagonal structure,shaped like a"Star of David".Isostructural 6-10 present ring-like structure,as well as the cluster 11.The structural variations of these complexes can be attributed to the effect of lanthanide contraction.Moreover,the template effect of SO42-anion derived from the slow decomposition of Hmmt ligand also plays a significant role in the formation of cluster skeletons.The in-situ mechanism for the generation of sulfate anion is briefly discussed.Meanwhile,the magnetic properties of complexes 2-11 were studied which show typical antiferromagnetic interactions.

Rare earthsTransition-rare-earth metal clustersMixed-ligand strategySulfate-templatedLanthanide contractionExchange coupling

Kaipeng Bai、Pengfei Sun、Mohamed Saber Lassoued、Caihong Fan、Chang Huang、Yanzhen Zheng、Weipeng Chen

展开 >

Frontier Institute of Science and Technology,State Key Laboratory of Electrical Insulation and Power Equipment,Xi'an Key Laboratory of Electronic Devices and Materials Chemistry,School of Chemistry,Xi'an Jiaotong University,Xi'an,710054,China

Instrument Analysis Center of Xi'an Jiaotong University,Xi'an,710054,China

National Natural Science Foundation of ChinaSupport Plan of Shaanxi Province for Young Topnotch Talent and Fundamental Research Funds for Central UniversitiesState Key Laboratory of Electrical Insulation and Power Equipment

21971203EIPE23402

2024

10.1016/j.jre.2023.09.005

稀土学报(英文版)
中国稀土学会

稀土学报(英文版)

CSTPCDEI
影响因子：1.3
ISSN：1002-0721
年,卷(期)：2024.42(11)