Results 121 to 130 of about 20,113 (257)

Stepwise Synthesis of Tetrabenzotriazaporphyrins (TBTAPs) and Their Open 2‐ and 3‐Ring Fragments

Chemistry – A European Journal, EarlyView.
Unexpected reaction pathways to porphyrin‐phthalocyanine hybrids are uncovered by the synthesis of “half‐macrocycle” fragments and subsequent macrocyclization. Rather than the expected 2:2 “ABBA” product, the 3:1 “ABBB” hybrid is isolated as the only macrocyclic product.
Jacob Gretton, Ala Alturk, Sonia Remiro‐Buenamañana, Alejandro Díaz‐Moscoso, Amirah A. Aldawsari, Maha S. Albayaa, Isabelle Chambrier, David L. Hughes, Simon J. Coles, Graham J. Tizzard, Andrew N. Cammidge   +10 more
wiley   +1 more source

Spin State in Au Porphyrins Modulated by Charge Transfer on Au(111). [PDF]

J Am Chem Soc
Li D, Kumar M, Stetsovych O, Lowe B, Sengupta R, Hayashi H, Maeda H, Jelínek P, Kawai S.   +8 more
europepmc   +1 more source

Control of Gemcitabine Activity With Blue and Red Light

Chemistry – A European Journal, EarlyView.
Treating cancer with chemotherapy is generally associated with many side effects, which can be addressed by selectively releasing the desired drugs with visible light. Sixteen new blue light‐activatable cytostatics were introduced, with the gemcitabine derivative exhibiting ideal properties.
Nils F. Kersten, Konstantin L. Stock, Marius Hyprath, Hannah Weisser, Timo Weinrich, Dieter Steinhilber, Alexander Heckel   +6 more
wiley   +1 more source

N-Confused Metalloporphyrin-Based Electrocatalysts for Oxygen Reduction. [PDF]

Molecules
Luo Y, Li Z, Xie J.
europepmc   +1 more source

Interplay of Bridge Topology and Conformation in Phenylene‐Bridged Trityl Diradicals

Chemistry – A European Journal, EarlyView.
We present a meta‐phenylene‐bridged trityl diradical that exhibits an unexpectedly weak antiferromagnetic exchange coupling J with a strong environment‐dependent magnitude. Combined VSM, EPR, DFT, and MD studies reveal that structural flexibility modulates σ‐, π‐, and through‐space exchange contributions, highlighting the crucial role of geometry in ...
Kevin Lars Kopp, Tobias Hett, Andrea Pellegrini, Stefan Grimme, Olav Schiemann   +4 more
wiley   +1 more source

Electronically Coupled, Cofacially Linked, Hypervalent Antimony(V) Porphyrin Homodimer: Synthesis, Spectroscopy, and Photochemistry. [PDF]

Inorg Chem
Poddutoori PK, Ellis P, Sharma JK, Zarrabi N, van der Est A, D'Souza F.   +5 more
europepmc   +1 more source

Coordination Chemistry of Boron Subphthalocyanine With BINOL Derivatives: Unexpected Oxidation to Oxa[4]Helicene and Properties of the Resulting Axially Coordinated Complexes Containing Oxa[4]Helicene and/or BINOL Derivatives

Chemistry – A European Journal, EarlyView.
Treatment of BINOL with a boron subphthalocyanine derivative resulted in the formation of a complex coordinated to an oxa[4]helicene derivative, which is generated via a ring‐closure reaction of BINOL. In contrast, treatment of the monomethyl ether of 1,1′‐bi‐2‐naphthol (BINOL) afforded the expected axially coordinated complex.
Shafikul Islam, Kazuyuki Asahi, Hiroyuki Nishikawa, Daiki Tauchi, Masashi Hasegawa, Ken‐ichi Sugiura   +5 more
wiley   +1 more source

Exploiting porphyrin metabolism to inhibit angiogenesis. [PDF]

Angiogenesis
De Giorgio F, Mannino G, Bonalume V, Bibi A, Martorana C, Digiovanni S, Riganti C, Genova T, Munaron L, Ruhrberg C, Fantin A, Petrillo S, Tolosano E.   +12 more
europepmc   +1 more source

Bismuth Chalcogenide‐Based Photocatalysts for Nitrogen Reduction: Recent Progress and Prospects

Chemistry – A European Journal, EarlyView.
Bismuth chalcogenides emerge as promising visible‐light photocatalysts for sustainable ammonia synthesis, driven by tunable electronic structures and strong N2 activation. Recent advances reveal how defects, doping and heterojunction design synergistically enhance charge separation and reactivity. Key challenges and future directions highlight pathways
Mukesh K. Verma, Muhammad D. Bala, Phindile B. Khoza, Tshephiso R. Papo, Mzamo L. Shozi   +4 more
wiley   +1 more source

Zwitterionic Mn(III)-Tetraphenyl Porphyrins: Water-Soluble MRI Contrast Agents with High Relaxivity. [PDF]

ChemMedChem
Ludolfs D, Spickschen LFV, Bredehöft S, Schulze VR, Oest M, Chaviano SL, Feliu N, Fischer M, Fortin MA, Frangioni JV, Maison W.   +10 more
europepmc   +1 more source