当前位置: X-MOL 学术CrystEngComm › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Two new hexa-Ni-substituted polyoxometalates in the form of an isolated cluster and 1-D chain: syntheses, structures, and properties
CrystEngComm ( IF 2.6 ) Pub Date : 2020-11-01 , DOI: 10.1039/d0ce01446j
Jun-Jun Sun 1, 2, 3, 4, 5 , Yue-Lin Wang 5, 6, 7, 8 , Guo-Yu Yang 1, 2, 3, 4, 5
Affiliation  

Two new hexa-Ni-substituted polyoxometalates (POMs), [Ni63-OH)3(en)2(dien)(H2O)5(B-α-PW9O34)]·3H2O (1, en = ethylenediamine, dien = diethylenetriamine) and [Ni63-OH)3(dap)2(py)6(H2O)(B-α-PW9O34)]·H2O (2, dap = 1,3-diaminopropane, py = pyridine), were successfully isolated under hydrothermal conditions. Compounds 1 and 2 were structurally characterized via single-crystal X-ray diffraction (XRD), infrared (IR) spectrometry, powder X-ray diffraction (PXRD), and thermogravimetric analyses (TGA). Single-crystal X-ray structure analyses indicate that the {Ni6PW9} cluster units were modified via different organic ligands through Ni–N bonds, giving rise to the formation of 1 and 2. Interestingly, the formation of 1 involves new in situ ligand reactions under hydrothermal conditions: the intermolecular deamination coupling reactions of en. Compound 2 is a new Z-shaped 1-D chain, which is connected by Ni–O[double bond, length as m-dash]W bonds from two adjacent [Ni63-OH)3(dap)2(py)6(H2O)(B-α-PW9O34)] units. In addition, their photocatalytic activities, and electrochemical and magnetic properties have been investigated.

中文翻译:

分离的簇和一维链形式的两种新的六价镍取代多金属氧酸盐:合成,结构和性质

两个新的六-镍-取代多金属氧酸盐(多金属氧酸盐),[镍6(μ 3 -OH)3(烯)2(二烯)(H 2 O)5(B-α-PW 9 ö 34)]·3H 2 ö (1,EN =乙二胺,二烯=二亚乙基)和[镍6(μ 3 -OH)3(DAP)2(PY)6(H 2 O)(B-α-PW 9 ö 34)]·H 2 ö (2,dap = 1,3-二氨基丙烷,py =吡啶)在水热条件下成功分离。化合物通过单晶X射线衍射(XRD),红外(IR)光谱,粉末X射线衍射(PXRD)和热重分析(TGA)在结构上表征图12。单晶X射线结构分析表明{Ni 6 PW 9 }簇单元通过不同的有机配体通过Ni–N键被修饰,从而形成12。有趣的是,1的形成涉及在水热条件下新的原位配体反应:en的分子间脱氨偶联反应。化合物2是一种新的Z形1-d链,这是由Ni-O系连接[双键,长度为m-破折号]W¯¯键从两个相邻[镍6(μ 3 -OH)3(DAP)2(PY)6(H 2 O)(B-α -PW 9 O 34)]单位。另外,还研究了它们的光催化活性以及电化学和磁性。
更新日期:2020-11-19
down
wechat
bug