Results 101 to 110 of about 40,631 (243)
Synthesis and reactions of organometallic porphyrins [PDF]
, 2007 This thesis reports progress in three major aspects of σ-bonded organometallic porphyrins that are described in the published papers found in chapters 4, 5 and 6.
Atefi, Farzad
core
One‐Step Access to Ultra‐Bright Macrocyclic Oligo‐BODIPYs Featuring Long‐Lived Cyclic Excitons
Angewandte Chemie, EarlyView.Strong Fluorescence Meets Long Lifetimes: A template‐free, one‐step synthesis affords a series of methylene‐bridged macrocyclic oligo‐BODIPYs combining strong fluorescence with exceptionally long fluorescence lifetimes. Steady‐state and time‐resolved optical spectroscopy reveal unique excitonic coupling conditions and unusual size‐dependent ...
Lukas J. Patalag +10 more
wiley +2 more sources
Advances in the use of metal-free tetrapyrrolic macrocycles as catalysts
Beilstein Journal of Organic ChemistryThis review provides an overview of recent progress made in the field of catalysis using metal-free tetrapyrrolic macrocycles, focusing on calix[4]pyrroles, porphyrins and corroles, which are structurally related to porphyrins.
Mandeep K. Chahal
doaj +1 more source
SYNTHESIS OF p-PHENYLENE VINYLENE DENDRONS & THEIR FUNCTIONALIZATION AND TESTING IN DYE-SENSITIZED SOLAR CELLS [PDF]
, 2013 The novel synthesis of p-phenylene vinylene dendrons utilizing a Horner-Wadsworth-Emmons based approach is described. The extended, linear π conjugation along all the dendron branches, a feature absent in most dendrimers used for light harvesting, was ...
Bell, Peter
core
Demetalation of corrole complexes: an old dream turning into reality
, 2008 Different strategies for the demetalation of corrole complexes have been developed, using copper complexes of corrole as model compounds.,Best results were obtained using the acidic mixture CHCl3/H2SO,, which allowed the almost complete removal of copper
MANDOJ, FEDERICA +11 more
core +1 more source
Angewandte Chemie, EarlyView.Here, we introduce a molecular design principle that fundamentally expands the bottom‐up synthesis of single‐atom catalysts (SACs). Coordinatively flexible polypyridyl units enable bottom‐up formation of ordered carbonaceous frameworks containing atomically dispersed Ru (∼11 wt%) by simple carbonization.
Koki Chida +13 more
wiley +2 more sources
Journal of Magnetic Resonance OpenPhotoexcited triplet states of porphyrins are of great relevance in various applications due to their high yield, long lifetime, and strong electron spin polarization.
D. Panariti +6 more
doaj +1 more source
Conformationally Switchable Copper(I) Complexes Amplify BODIPY Triplet Photosensitization
Angewandte Chemie, EarlyView.Coupling a structurally switchable Cu(I) complex to an organic light‐harvesting chromophore boosts photoinduced intersystem crossing via the transient formation of a Cu(II) intermediate. Spectroscopic, physical, computational, and photocatalytic studies support this unique new approach to solar energy upconversion.
Nisha Kamboj +4 more
wiley +2 more sources
A Mechanical sp2‐Jail for C60 Fullerene
Angewandte Chemie, EarlyView.A rigid bisporphyrin receptor with an exceptionally compact 3D cavity functions as a molecular “mechanical jail”, tightly enclosing C60 fullerene. Near‐perfect shape complementarity affords ultrahigh binding affinity while imposing a large kinetic barrier for guest exchange, rendering encapsulation effectively irreversible under ambient conditions ...
A. Priscila Gia +8 more
wiley +2 more sources