Template Synthesis of Three-Dimensional Hexakisimidazolium Cages
作者:Li-Ying Sun、Narayan Sinha、Tao Yan、Yi-Shou Wang、Tristan T. Y. Tan、Le Yu、Ying-Feng Han、F. Ekkehardt Hahn
DOI:10.1002/anie.201713240
日期:2018.4.23
A procedure for the synthesis of three‐dimensional hexakisimidazolium cage compounds has been developed. The reaction of the trigonal trisimidazolium salts H3L(PF6)3, decorated with three N‐olefinic pendants, and silver oxide yielded trinuclear trisilver(I) hexacarbene molecular cylinders of the type [Ag3L2]3+ with the olefinic pendants from the two different tricarbene ligands arranged in three pairs
Novel Rhodium and Iridium Complexes Coordinated to <i>C</i><sub>3</sub>-Symmetric Tris-NHC Ligands Based on a 1,3,5-Triphenylbenzene Core. Electronic and Catalytic Properties
tris-NHC complexes of Rh and Ir in high yield. The electronic properties of the new complexes were analyzed by means of cyclic voltammetry and IR spectroscopy of the related carbonylated species. The catalytic activity of the trirhodium complex toward the addition of arylboronic acids to cyclohexen-2-one has been evaluated and compared to the activity shown by a related monometallic complex.
Process-tracing study on the post-assembly modification of poly-NHC-based metallosupramolecular cylinders with tunable aggregation-induced emission
作者:Yi-Shou Wang、Sha Bai、Yao-Yu Wang、Ying-Feng Han
DOI:10.1039/c9cc07113j
日期:——
A process-tracing and aggregation-induced emission (AIE) study of a covalent post-assembly modification (PAM) process of the AuI–CNHC cylinders was presented.
Homo- and Heteroligand Poly-NHC Metal Assemblies: Synthesis by Narcissistic and Social Self-Sorting
作者:Yi-Shou Wang、Ting Feng、Yao-Yu Wang、F. Ekkehardt Hahn、Ying-Feng Han
DOI:10.1002/anie.201810010
日期:2018.11.26
H3‐A(BF4)3 or H3‐D(BF4)3 with Ag2O yield trinuclear homoligand complexes [Ag3(L)2](BF4)3 (L=A, D). However, equimolar mixtures of H3‐A(BF4)3 and H3‐D(BF4)3 react with Ag2O under social self‐sorting to give the heteroligand assembly [Ag3(A)(D)](BF4)3. The same heteroligand assembly was obtained by transmetallation from mixtures of complexes [Ag3(A)2](BF4)3 and [Ag3(D)2](BF4)3. The transmetallation from
C
<sub>3</sub>
‐Symmetric Assemblies from Trigonal Polycarbene Ligands and M
<sup>I</sup>
Ions for the Synthesis of Three‐Dimensional Polyimidazolium Cations
作者:Le Zhang、Rajorshi Das、Chang‐Tao Li、Yao‐Yu Wang、F. Ekkehardt Hahn、Kai Hua、Li‐Ying Sun、Ying‐Feng Han
DOI:10.1002/anie.201907003
日期:2019.9.16
linking two hexakis-NHC ligands by three cyclobutane units to give complexes [Ag6 (2 a)](PF6 )6 and [Ag6 (2 b)](PF6 )6 bearing a dodecacarbene ligand. From the related nonakisimidazolium salt H9 -3(BF4 )9 , complex [Ag9 (4)](BF4 )9 bearing an octadecacarbene ligand was obtained. Removal of the templatemetals yielded very large, stable, polyimidazolium cations with 12 or 18 internal imidazolium groups.