Results 151 to 160 of about 103,245 (367)

Electronic structure and charge transfer excited states of a multichromophoric antenna [PDF]

open access: yesarXiv, 2013
The electronic structure of a multichromophoric molecular complex containing two of each borondipyrromethane dye, Zn-tetraphenyl-porphyrin, bisphenyl anthracene and a fullerene are studied using density functional theory. The snowflake shaped molecule behaves like an antenna capturing photon at different frequencies and transferring the photon energy ...
arxiv  

Endogenous Near‐Infrared Chemiluminescence: Imaging‐Guided Non‐Invasive Thrombolysis and Anti‐Inflammation Based on a Heteronuclear Transition Metal Complex

open access: yesAdvanced Science, EarlyView.
Cu2Ir NPs based on a Cu‐porphyrin core and cyclometalated Ir(III) substituents achieve combined endogenous peroxynitrite‐triggered NIR chemiluminescence imaging, PTT and PDT for successfully achieving safe thrombolysis, antioxidant and anti‐inflammatory multifunctionality in one single molecule.
Ziwei Wang   +13 more
wiley   +1 more source

Color Change Effect in an Organic-Inorganic Hybrid Material Based on a Porphyrin Diacid [PDF]

open access: yesarXiv, 2016
Porphyrinic materials show a range of interesting and useful optical and electrical properties. The less well-known sub-class of porphyrin diacids has been used in this work to construct an ionic hybrid organic-inorganic material in combination with a halogenidometalate anion.
arxiv  

Understanding the mechanism stabilizing intermediate spin states in Fe(II)-Porphyrin

open access: yes, 2017
Spin fluctuations in Fe(II)-porphyrins are at the heart of heme-proteins functionality. Despite significant progress in porphyrin chemistry, the mechanisms that rule spin state stabilisation remain elusive.
Alavi, Ali, Manni, Giovanni Li
core   +2 more sources

An Electrochemically‐Driven Reconstruction Strategy to Realize Highly Crystalline Covalent Organic Frameworks for Enhanced Hydrogen Evolution Reaction

open access: yesAdvanced Science, EarlyView.
An electrochemically‐driven reconstruction strategy is proposed to convert low‐crystalline imine‐linked polymers into highly crystalline, structurally ordered COFs with enhanced HER activity, which offers new insights into the structural modulation of COFs and facilitates the design of more advanced metal‐free electrocatalysts.
Yuxin Ren   +9 more
wiley   +1 more source

Surface Charge Transfer Enhanced Cobalt‐Phthalocyanine Crystals for Efficient CO2‐to‐CO Electroreduction with Large Current Density Exceeding 1000 mA cm−2

open access: yesAdvanced Science, EarlyView.
A spray‐growth method is developed to rapidly load cobalt‐phthalocyanine crystals onto carbon paper (CoPc/CP). The electrode maintains > 90% CO selectivity across potentials (−0.57–−1.32 V vs. RHE), achieving a record JCO (−1034 mA cm−2), ultra‐high mass activity (5180 A g−1), and excellent stability (145 h@−150mA cm−2), surpassing all reported Pc ...
Tengyi Liu   +10 more
wiley   +1 more source

Derivatized porphyrins and multi-porphyrin assemblies

open access: yes, 2018
Porphyrin-containing multi-component systems have served a key role in the study of molecular assembly and supramolecular chemistry. These systems, however, are often very difficult to prepare and new synthetic strategies towards their preparation are of great interest;This work describes a series of thiol-derivatized porphyrins and the corresponding ...
openaire   +3 more sources

Surfactant‐Assisted Construction of Covalent Organic Frameworks

open access: yesAdvanced Science, EarlyView.
This paper presents a comprehensive overview of the latest advancements and future trends in the surfactant‐assisted synthesis of covalent organic frameworks. It emphasizes the crucial role of surfactants as key additives in optimizing the crystallinity, morphology, and structure of COFs, facilitating diverse regulation, and enhancing their practical ...
Youqi Li   +8 more
wiley   +1 more source

Phosphine-porphyrin conjugates : a thesis presented in partial fulfilment of the requirements for the degree of Masterate of Science in Chemistry at Massey University, New Zealand [PDF]

open access: yes, 2000
The research carried out in this thesis comprises an investigation into the synthesis and characterisation of a variety of complexed phosphine-aldehydes, complexed phosphinoporphyrins, and phosphinoferrocene conjugates.
Lun, David James
core  

Home - About - Disclaimer - Privacy