bearing a pyrenyl group, exhibits temperature and frequency dependence of ac magnetic susceptibility, typical of single-moleculemagnets. The complex was successfully attached to single-walled carbon nanotubes (SWNTs) using pi-pi interactions, yielding a 1-SWNT conjugate. The supramolecular grafting of 1 to SWNTs was proven qualitatively and quantitatively by high-resolution transmission electron microscopy
A novel Janus-type ruthenium complex bearing both phosphonic acid and pyrene groups was tethered to both ITO and HOPG surfaces in different tethering modes. On the ITO surface, the phosphonic groups were selectively attached to the ITO, resulting in the hydrophobic surface because of the exposed pyrene groups on the top. On the other hand, on the HOPG surface, pyrene groups interacted with the HOPG surface through noncovalent interaction, resulting in a hydrophilic surface exposing phosphonic acid groups. This selectivity makes it possible to fabricate redox-active ruthenium complex and graphene composite by layer-by-layer growth of molecular units.
作者:Yoshikazu Suzuki、Paola Laurino、D. Tyler McQuade、Peter H. Seeberger
DOI:10.1002/hlca.201200487
日期:2012.12
rates. A capture/release strategy that unites the benefits of heterogeneous and homogeneous catalysis would overcome these current shortcomings. Herein, we report on a novel capture‐and‐release flowsystem that takes advantage of a non‐covalent pyrenesingle wall nanotube (SWNT) interaction. We demonstrate that a Pd complex containing one or two pyrene arms is captured and released from a SWNT column
A fluorescent pyrophosphate sensor via excimer formation in water
作者:Hong Kwan Cho、Dong Hoon Lee、Jong-In Hong
DOI:10.1039/b417845a
日期:——
A new fluorescentsensor based on a pyrene/Zn(II)-dpa (dpa = bis(2-pyridylmethyl)amine) conjugate displays excimer emission selective for pyrophosphateover other anions.