Helical Nanostructures of an Optically Active Metal-Free Porphyrin with Four Optically Active Binaphthyl Moieties: Effect of Metal-Ligand Coordination on the Morphology

2010 ◽  
Vol 2010 (25) ◽  
pp. 4000-4008 ◽  
Author(s):  
Jitao Lu ◽  
Lizhen Wu ◽  
Jianzhuang Jiang ◽  
Xiaomei Zhang
Keyword(s):  
Optically Active ◽  
Metal Free ◽  
Active Metal ◽  
Ligand Coordination ◽  
Metal Ligand

Synthesis and Hollow-Sphere Nanostructures of Optically Active Metal-Free Phthalocyanine

2008 ◽  
Vol 2008 (27) ◽  
pp. 4255-4261 ◽  
Author(s):  
Wei Lv ◽  
Xiaomei Zhang ◽  
Jitao Lu ◽  
Yuexing Zhang ◽  
Xiyou Li ◽  
...  
Keyword(s):  
Hollow Sphere ◽  
Optically Active ◽  
Metal Free ◽  
Active Metal

OPTICAL LIMITING PROPERTIES OF OPTICALLY ACTIVE METAL-FREE AND METAL PHTHALOCYANINES SUBSTITUTED WITH CHIRAL BINAPHTHYL CROWN ETHER UNITS

2001 ◽  
Vol 10 (04) ◽  
pp. 423-429 ◽  
Author(s):  
HONGWEI LIU ◽  
CHUANFU CHEN ◽  
FU XI ◽  
PENG WANG ◽  
SHUANG ZHANG ◽  
...  
Keyword(s):  
Crown Ether ◽  
Optical Limiting ◽  
Optically Active ◽  
Central Metal ◽  
Metal Phthalocyanine ◽  
Metal Phthalocyanines ◽  
Limiting Behavior ◽  
Metal Free ◽  
Active Metal ◽  
532 Nm

The optical limiting properties of five optically active phthalocynines substituted with chiral binaphthyl crown ether units, (R)- and (S)- BNCE - H 2 Pc , (R)- and (S)-BNCE-CuPc, (S)-BNCE-PbPc, were investigated in solution at 532 nm with 10 ns pulses. The experimental results indicated that the (S)- and (R)-optical isomer exhibit similar optical limiting behavior and the central metal ions, Cu or Pb in the optically active metal phthalocyanine have not significantly enhanced the optical limiting behavior compared with that of the optically active metal-free phthalocyanine. In addition, the nonlinear absorption of the optically active metal-free and metal phthalocyanines was determined by the standard open aperture Z-scan technique.

scholarly journals Self-Assembled Nanomaterials Based on Complementary Sn(IV) and Zn(II)-Porphyrins, and Their Photocatalytic Degradation for Rhodamine B Dye

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3598
Author(s):  
Nirmal K. Shee ◽  
Hee-Joon Kim
Keyword(s):  
Aqueous Solution ◽  
Visible Light Irradiation ◽  
Rhodamine B ◽  
Self Assembly ◽  
The Self ◽  
Assembly Process ◽  
Absorption Bands ◽  
Ligand Coordination ◽  
Rhodamine B Dye ◽  
Metal Ligand

A series of porphyrin triads (1–6), based on the reaction of trans-dihydroxo-[5,15-bis(3-pyridyl)-10,20-bis(phenyl)porphyrinato]tin(IV) (SnP) with six different phenoxy Zn(II)-porphyrins (ZnLn), was synthesized. The cooperative metal–ligand coordination of 3-pyridyl nitrogens in the SnP with the phenoxy Zn(II)-porphyrins, followed by the self-assembly process, leads to the formation of nanostructures. The red-shifts and remarkable broadening of the absorption bands in the UV–vis spectra for the triads in CHCl3 indicate that nanoaggregates may be produced in the self-assembly process of these triads. The emission intensities of the triads were also significantly reduced due to the aggregation. Microscopic analyses of the nanostructures of the triads reveal differences due to the different substituents on the axial Zn(II)-porphyrin moieties. All these nanomaterials exhibited efficient photocatalytic performances in the degradation of rhodamine B (RhB) dye under visible light irradiation, and the degradation efficiencies of RhB in aqueous solution were observed to be 72~95% within 4 h. In addition, the efficiency of the catalyst was not impaired, showing excellent recyclability even after being applied for the degradation of RhB in up to five cycles.

scholarly journals Capable Cross-links: Polymersomes Reinforced with Catalytically Active Metal–Ligand Bonds

2015 ◽  
Vol 27 (13) ◽  
pp. 4808-4813 ◽  
Author(s):  
Ian M. Henderson ◽  
Hope A. Quintana ◽  
Julio A. Martinez ◽  
Walter F. Paxton
Keyword(s):  
Active Metal ◽  
Catalytically Active ◽  
Cross Links ◽  
Metal Ligand

Template-free multicomponent coordination-driven self-assembly of Pd(ii)/Pt(ii) molecular cages

2014 ◽  
Vol 50 (18) ◽  
pp. 2239-2248 ◽  
Author(s):  
Sandip Mukherjee ◽  
Partha Sarathi Mukherjee
Keyword(s):  
Self Assembly ◽  
Assembly Process ◽  
Molecular Cages ◽  
Recent Developments ◽  
Ligand Coordination ◽  
Template Free ◽  
Metal Ligand

This article summarizes the recent developments in the construction of multicomponent molecular hollowed-out cages through the metal–ligand coordination-driven self-assembly process, with a focus on the decreasing relevance of the use of templates.

Sign in / Sign up

Export Citation Format

Share Document