PdII2L4-type coordination cages up to three nanometers in size.
نویسندگان
چکیده
The utilization of large ligands in coordination-based self-assembly represents an attractive strategy for the construction of supramolecular assemblies more than two nanometers in size. However, the implementation of this strategy is hampered by the fact that the preparation of such ligands often requires substantial synthetic effort. Herein, we describe a simple one-step protocol, which allows large bipyridyl ligands with a bent shape to be synthesized from easily accessible and/or commercially available starting materials. The ligands were used to construct PdII2L4-type coordination cages of unprecedented size. Furthermore, we provide evidence that these cages may be stabilized by close intramolecular packing of lipophilic ligand side chains. Packing effects of this kind are frequently encountered in protein assemblies, but they are seldom used as a design element in metallasupramolecular chemistry.
منابع مشابه
PdII 2L4-type coordination cages up to three nanometers in size† †Electronic supplementary information (ESI) available: Synthetic procedures and experimental details. CCDC 1511090–1511096. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c6sc04732g Click here for additional data file. Click here for additional data file.
متن کامل
Self-assembled palladium and platinum coordination cages: Photophysical studies and anticancer activity
Self-assembled coordination cages are interesting as drug delivery systems. Therefore, the synthesis of new M2L4 (M = Pd, Pt) molecular cages, derived from highly fluorescent, rigid polyaromatic ligands is reported and the first Pt2L4 cage with a ligand consisting of three pyridine moieties is described. Photophysical properties were examined showing high quantum yields of up to 48% for the m...
متن کاملThe effects of fish culture in floating cages on the seabed sediments and macrobenthos community in the southern Caspian Sea, Kelarabad
This study has been in order to investigate the effects of cage culture in the south of the Caspian Sea, Kelarabad. Sampling was in three direction of cages, East, West and South (the coast of Caspian Sea). For this purpose, four stations on each side of the cages was considered in terms of distance, the shadow (5 meters) to a distance of 1000 meters cages (control). Grain size analysis shows, ...
متن کاملA Triphasic Sorting System: Coordination Cages in Ionic Liquids.
Host-guest chemistry is usually carried out in either water or organic solvents. To investigate the utility of alternative solvents, three different coordination cages were dissolved in neat ionic liquids. By using (19) F NMR spectroscopy to monitor the presence of free and bound guest molecules, all three cages were demonstrated to be stable and capable of encapsulating guests in ionic solutio...
متن کاملCalculation of Thermodynamic Parameters of [2.4.6] Three Nitro Toluene (TNT) with Nanostructures of Fullerene and Boron Nitride Nano-cages over Different Temperatures, Using Density Functional Theory
In this study explosive substance [2.4.6] three Nitro Toluene (TNT) was attached with nanostructures of fullerene (C24) and boron nitride nano-cages (B12N12). After that using B3LYP (Becke, three-parameter, Lee-Yang-Parr), a method from density functional theory (DFT), thermodynamic parameters of TNT with foregoing nanostructures, in different conditions of temperature, were computed. To this a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Chemical science
دوره 8 3 شماره
صفحات -
تاریخ انتشار 2017