Supramolecular Aggregation Control in Polyoxometalates Covalently Functionalized with Oligoaromatic Groups

被引：1

作者：

Knoll, Sebastian ^{[1
]}

Haenle, Matthias ^{[1
]}

Mengele, Alexander K. ^{[1
]}

Sorsche, Dieter ^{[1
]}

Rau, Sven ^{[1
]}

Streb, Carsten ^{[1
,2
]}

机构：

[1] Ulm Univ, Inst Inorgan Chem I, Albert Einstein Allee 11, D-89081 Ulm, Germany

[2] Johannes Gutenberg Univ Mainz, Dept Chem, Duesbergweg 10-14, D-55128 Mainz, Germany

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2023年 / 29卷 / 15期

关键词：

organic-inorganic hybrid; organofunctionalization; photosensitizer; polyoxometalate; supramolecular; POST-FUNCTIONALIZATION; CATALYST DYADS; VISIBLE-LIGHT; COMPLEXES; CHEMISTRY; PHASE; AZIDE; ACTIVATION; REDUCTION; HYBRIDS;

D O I：

10.1002/chem.202203469

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

CLICK-chemistry has become a universal route to covalently link organic molecules functionalized with azides and alkynes, respectively. Here, we report how CLICK-chemistry can be used to attach oligoaromatic organic moieties to Dawson-type polyoxometalates. In step one, the lacunary Dawson anion [alpha(2)-P2W17O61](6-) is functionalized with phosphonate anchors featuring peripheral azide groups. In step two, this organic-inorganic hybrid undergoes microwave-assisted CLICK coupling. We demonstrate the versatility of this route to access a series of Dawson anions covalently functionalized with oligoaromatic groups. The supramolecular chemistry and aggregation of these systems in solution is explored, and we report distinct changes in charge-transfer behavior depending on the size of the oligoaromatic pi-system.

引用

页数：9