0000000000225090
AUTHOR
Andreas Schnepf
Reactions with a Metalloid Tin Cluster {Sn10[Si(SiMe3)3]4}(2-): Ligand Elimination versus Coordination Chemistry.
Chemistry that uses metalloid tin clusters as a start- ing material is of fundamental interest towards understand- ing the reactivity of such compounds. Since we identified {Sn10(Si(SiMe3)3)4} 2� 7 as an ideal candidate for such reactions, we present a further step in the understanding of metalloid tin cluster chemistry. In contrast to germanium chemistry, ligand elimination seems to be a major reaction channel, which leads to the more open metalloid cluster {Sn10(Si(SiMe3)3)3} � 9, in which the Sn core is only shielded by three Si(SiMe3)3 ligands. Compound 9 is obtained through different routes and is crystallised together with two differ- ent countercations. Besides the structural charact…
UV photoexcitation of a dissolved metalloid Ge9 cluster compound and its extensive ultrafast response.
Femtosecond pump-probe absorption spectroscopy in tetrahydrofuran solution has been used to investigate the dynamics of a metalloid cluster compound {Ge9[Si(SiMe3)3]3}(-). Upon UV photoexcitation, the transients in the near-infrared spectral region showed signatures reminiscent of excess electrons in THF (bound or quasi-free) whereas in the visible part excited state dynamics of the cluster complex dominates.
Au70S20(PPh3)12: an intermediate sized metalloid gold cluster stabilized by the Au4S4 ring motif and Au-PPh3 groups
Reducing (Ph3P)AuSC(SiMe3)3 with L-Selectride® gives the medium-sized metalloid gold cluster Au70S20(PPh3)12. Computational studies show that the phosphine bound Au-atoms not only stabilize the electronic structure of Au70S20(PPh3)12, but also behave as electron acceptors leading to auride-like gold atoms on the exterior.
CCDC 1044696: Experimental Crystal Structure Determination
Related Article: Claudio Schrenk, Birgit Gerke, Rainer Pöttgen, Andre Clayborne, Andreas Schnepf|2015|Chem.-Eur.J.|21|8222|doi:10.1002/chem.201500550
CCDC 1575582: Experimental Crystal Structure Determination
Related Article: Sebastian Kenzler, Claudio Schrenk, Andrew R. Frojd, Hannu Häkkinen, Andre Z. Clayborne, Andreas Schnepf|2018|Chem.Commun.|54|248|doi:10.1039/C7CC08014J
CCDC 1044697: Experimental Crystal Structure Determination
Related Article: Claudio Schrenk, Birgit Gerke, Rainer Pöttgen, Andre Clayborne, Andreas Schnepf|2015|Chem.-Eur.J.|21|8222|doi:10.1002/chem.201500550