13C and17O NMR study of methoxy groups in chlorinated Di- and trimethoxybenzenes
作者:J. Knuutinen、E. Kolehmainen
DOI:10.1002/mrc.1260280407
日期:1990.4
and 1,4‐dimethoxybenzenes, 1,2,3‐trimethoxybenzenes and most of their chlorinated derivatives and some related brominated compounds were measured for CDCl3 solutions. The 17O NMR chemical shifts show up to 60 ppm dispersion. Comparison between the compounds with and without adjacent chlorine atoms (2,6‐di‐ and 2,4,6‐tri‐substitution) also showed a clear methoxy carbon chemical shift change. The number
One-Step Multicomponent Self-Assembly of a First-Generation Sierpiński Triangle: From Fractal Design to Chemical Reality
作者:Rajarshi Sarkar、Kai Guo、Charles N. Moorefield、Mary Jane Saunders、Chrys Wesdemiotis、George R. Newkome
DOI:10.1002/anie.201407285
日期:2014.11.3
architecture that mimics a first‐generation Sierpińskitriangle has been synthesized by multicomponent assembly and features tpyCdIItpy connectivity (tpy=terpyridine). The key terpyridine ligands were synthesized by the Suzuki cross‐coupling reaction. Mixing two different terpyridine‐based ligands and CdII in a precise stoichiometric ratio (1:1:3) produced the desired fractal architecture in near‐quantitative
METALLOTRIANGLE-BASED NANOMOLECULES AND METHODS OF MAKING THE SAME
申请人:Newkome George R.
公开号:US20160214938A1
公开(公告)日:2016-07-28
Metallotriangle-based nanomolecules are formed by a one-step self-assembly of specifically chosen shaped poly-ligand monomers, the poly-ligand monomers coordinating with metal ions through coordinating ligands. The poly-ligand monomers are defined by vertex groups having arms extending therefrom and ending in coordinating ligands. Based on the desired metallotriangle-based nanomolecule structure to be assembled, specifically shaped poly-ligand monomers and metal ions are chosen and mixed in appropriate ratios so that coordinating ligands bind to metal ions and the poly-ligand monomers thus spontaneously self-assemble into the desired metallotriangle-based nanomolecule structure.