Publications by authors named "Jibin Alex Abraham"
Article Synopsis
- - The study focuses on anionic cyclopentadienyl (Cp) and its modified version (Cp*) as important ligands for creating stable materials, including catalysts, and explores their structural counterpart, N-fused porphyrin (NFP), which has useful near-infrared (NIR) optical properties.
- - Rhodium coordination with NFP leads to the formation of Rh-1 and Rh-1-Br complexes, which display strong NIR optical properties and narrow energy gaps due to limited orbital interactions between the NFP ligands.
- - The high photothermal conversion efficiency of Rh-1 and its ligand indicates their potential use in photothermal therapy, a medical treatment that utilizes heat to destroy targeted tissues.
N-fused porphyrin (NFP) is a unique class of photostable near-infrared dyes with an 18π aromatic tetrapyrrole macrocyclic skeleton containing a tri-fused pentacyclic moiety. Here, the synthesis of an iridium complex of N-fused bilatrienone is reported as the degradation product of Ir-cyclooctadiene (cod)-induced oxidative cleavage of NFP under aerobic conditions. Similar to the native bilin chromophores, the ring-opened complex featured a broken π-conjugation circuit and exhibited a broad visible absorption band.
View Article and Find Full Text PDFIncorporating tungsten into the N3 core of a N-fused porphyrin (NFP; 1) affords high-valent tungsten(VI)-NFP complexes, WClO -1 and 21-chlorinated WClO -3. The X-ray structure of WClO -1 reveals a distorted octahedral geometry with sitting atop metal coordination. The absorption spectrum of WClO -1 displays bathochromically shifted Q-like bands beyond 1000 nm, indicating an inherently narrow HOMO-LUMO energy gap.
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