A novel sandwich shaped {CoCoMo} cluster with a Co triangle encapsulated in two capped CoIIICoMoO40 fragments.,Dalton Transactions

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A novel sandwich shaped {CoCoMo} cluster with a Co triangle encapsulated in two capped CoIIICoMoO40 fragments.
Dalton Transactions ( IF 3.5 ) Pub Date : 2020-01-14 , DOI: 10.1039/c9dt04459k
Hai-Ye Li ₁ , Hua-Yu Pang , Peng-Fei Yao , Fu-Ping Huang , He-Dong Bian , Fu-Pei Liang

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A novel discrete {Co14Mo24} nanoscale cluster, {CoIII2CoII10Cl2(dpbt)3(H2O)2[CoIIMoV12O31(CH3O)9]2}·24CH3OH (1) (here, dpbt = 5,5'-di(pyridin-2-yl)-3,3'-bi(1,2,4-triazole)), with a triangular Co4 core encapsulated in two novel capped Co-substituted Keggin-type Co5Mo12O40 anions, has been isolated from alkaline methanol solution. The high-resolution electrospray ionization mass spectrum (HRESI-MS) of microcrystalline 1 in MeOH/CH2Cl2 (v : v = 2 : 1) was recorded. Two prominent overlapping peaks in the range of m/z = 2740-2840 and 1820-1880 for the discrete fragments of [CoIII2CoII12MoV24O62Cl2(dpbt)3(H2O)2(CH3O)x(OH)18-x-2H]2- (x = 9-18, F1) and [CoIII2CoII12MoV24O62Cl2(dpbt)3(H2O)2(CH3O)x(OH)19-x-2H]3- (x = 6-13, F2), respectively, are obtained, confirming the {Co14Mo24} composition in 1. In addition, weak anti-ferromagnetic interactions in 1 are observed.

中文翻译：

一种新颖的三明治形{CoCoMo}簇，其Co三角形封装在两个带帽的CoIIICoMoO40片段中。

一个新颖的离散{Co14Mo24}纳米簇，{CoIII2CoII10Cl2（dpbt）3（H2O）2 [CoIIMoV12O31（CH3O）9] 2}·24CH3OH（1）（此处dpbt = 5,5'-di（吡啶-2-基）-3,3'-bi（1,2,4-三唑）），具有三角形Co4核，被包裹在两个新颖的封端的Co-取代的Keggin型Co5Mo12O40阴离子中，已从碱性甲醇溶液中分离出来。记录了微晶1在MeOH / CH2Cl2（v：v = 2：1）中的高分辨率电喷雾电离质谱（HRESI-MS）。[CoIII2CoII12MoV24O62Cl2（dpbt）3（H2O）2（CH3O）x（OH）18-x-2H] 2-的离散片段的m / z = 2740-2840和1820-1880范围内的两个突出的重叠峰x = 9-18，F1）和[CoIII2CoII12MoV24O62Cl2（dpbt）3（H2O）2（CH3O）x（OH）19-x-2H] 3-（x = 6-13，F2）分别得到证实1中的{Co14Mo24}组成。此外，

更新日期：2020-02-10

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