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A Giant 3d‐4f Polyoxometalate Super‐Tetrahedron with High Proton Conductivity
Small Methods ( IF 10.7 ) Pub Date : 2020-11-03 , DOI: 10.1002/smtd.202000777
Shu-Rong Li 1 , Hai-Ying Wang 1 , Hai-Feng Su 1 , Hui-Jun Chen 1 , Ming-Hao Du 1 , La-Sheng Long 1 , Xiang-Jian Kong 1 , Lan-Sun Zheng 1
Affiliation  

The assembly of gigantic heterometallic metal clusters remains a great challenge for synthetic chemistry. Herein, based on the slow release strategy of lanthanide ions and in situ formation of lacunary polyoxometalates, two giant 3d‐4f polyoxometalate inorganic clusters [LaNi12W35Sb3P3O139(OH)6]23− (LaNi12) and [La10Ni48W140Sb16P12O568(OH)24(H2O)20]86− (La10Ni48) are obtained. The nanoscopic inorganic cluster La10Ni48 possesses a super tetrahedron structure, which can be viewed as assembly from four LaNi12 molecules encapsulating a central [La6(SbO3)4(H2O)20]6+ octahedron core. This giant aesthetic La10Ni48 tetrahedron containing 214 metal ions is the largest 3d‐4f cluster reported thus far in polyoxometalate system. More interestingly, the LaNi12 and La10Ni48 display high stability in solution and La10Ni48 displays excellent proton conductivity.

中文翻译:

具有高质子电导率的巨型 3d-4f 多金属氧酸盐超四面体

巨大的异金属金属簇的组装仍然是合成化学的一大挑战。在此,基于镧系离子的缓释策略和缺位多金属氧酸盐的原位形成,两个巨大的 3d-4f 多金属氧酸盐无机簇 [LaNi 12 W 35 Sb 3 P 3 O 139 (OH) 6 ] 23− ( LaNi 12 ) 和[La 10 Ni 48 W 140 Sb 16 P 12 O 568 (OH) 24 (H 2 O) 20 ] 86− (得到La 10 Ni 48 )。纳米级无机团簇La 10 Ni 48具有超四面体结构,可以将其视为四个LaNi 12分子的组装,其中包含中心 [La 6 (SbO 3 ) 4 (H 2 O) 20 ] 6+八面体核。这个包含 214 个金属离子的巨大美学La 10 Ni 48四面体是迄今为止在多金属氧酸盐系统中报道的最大的 3d-4f 簇。更有趣的是,LaNi 12La10 Ni 48在溶液中表现出高稳定性, La 10 Ni 48表现出优异的质子传导性。
更新日期:2020-11-03
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