Maik Finze

Jul 12, 2024 | pubs.rsc.org | Martin Luff |Maik Finze

The Tetracyanoborate Anion as Building Block for the Heterocubane Cluster Cage [Cr4{B(CN)4}4]4– The tetracyanoborate anion [B(CN)4]– (TCB) was utilized as a building block for the synthesis of polynuclear chromium carbonyl compounds upon photolytic reaction with [Cr(CO)6]. Up to four κN-coordinated cyano groups of TCB can be involved in binding to chromium, giving mixtures of [B(CN)4–x{CN–Cr(CO)5}x]− (x = 1–4; 1–4) and [{Cr(CO)4(B(CN)4)}2]2– (5).

Apr 25, 2024 | pubs.rsc.org | Matthias Lehmann |Pascal Weinberger |Maik Finze |Guinevere A Giffin

New ionic mesogens with high ionic conductivity based on a cyanoborate building block and lipophilic or hydrophilic counter ions New ionic mesogens have been prepared based on a cyanoborate head group, which is tethered to a lipophilic periphery via a short flexible spacer. As counter ions, either tetra-n-butyl ammonium cations or sodium and potassium cations stabilized by 18-crown-6 have been used.