Homopolyatomic cations of the non-metals stabilized by weakly coordinating boron cluster anions

非金属的均多原子阳离子具有特殊的结构和成键情况，这对这些元素的化学性质至关重要。虽然这些阳离子的经典合成已经被详尽地研究，但现代概念和方法代表了有前途的新途径。在本项目中，将研究第16族元素（硫、硒、碲）的均多原子阳离子。此外，这些方法将转移到选定的第15族元素（磷、砷、锑）和第17族元素（溴）。在凝聚相中，阳离子将被卤代弱配位硼簇基阴离子稳定。预计这些大的和弱配位的阴离子也稳定自由基阳离子，除了双阳离子，非金属元素。合成研究将伴随着EPR光谱，电化学和量子化学研究。

Unusual structures and bonding situations characterize the homopolyatomic cations of the non-metals, which are of fundamental importance to the chemistry of these elements. While classical syntheses to those cations have been studied exhaustively, modern concepts and methods represent promising new access paths. In this project the homopolyatomic cations of the elements of group 16 (sulfur, selenium, tellurium) will be investigated. Furthermore, these methods will be transferred to selected elements of groups 15 (phosphorus, arsenic, antimony) and 17 (bromine). In condensed phase the cations will be stabilized by halogenated weakly coordinating boron cluster-based anions. It is expected that these large and weakly coordinating anions also stabilize radical cations, besides dications, of the non-metal elements. The synthetic studies will be accompanied by EPR-spectroscopic, electrochemical, and quantum-chemical investigations.