Dinaphthoporphycenes: Synthesis and Nonlinear Optical Studies
摘要:
Naphthobipyrrole-derived porphycenes are synthesized for the first time via McMurry coupling of the beta-alkylated 2,9-diformylnaphthobipyrrole derivatives, which in turn were prepared easily from 2,3-naphthalene bishydrazine in four steps. Insertion of nickel into the porphycene core results in transformation of the rectangular N4-core into a square type geometry owing to the fusion of naphthalene moiety onto the bipyrrole entities. These porphycenes show large, intensity dependent three-photon absorption.
作者:Vladimir Roznyatovskiy、Vincent Lynch、Jonathan L. Sessler
DOI:10.1021/ol101931y
日期:2010.10.1
Naphthobipyrrole is a potentially useful building block for porphyrin and porphyrin analogue synthesis. Reported here is a simple, generalizable synthetic route to α-formylated, β-substituted naphthobipyrroles and their use in the preparation of binaphthoporphycenes. The resulting binaphthoporphycenes possess a planar geometry as determined via a single-crystal X-ray diffraction analysis; they also
Naphthobipyrrole 是卟啉和卟啉类似物合成的潜在有用构件。这里报道了一种简单、可推广的 α-甲酰化、β-取代萘并联吡咯的合成路线及其在制备双萘并卟啉中的用途。通过单晶 X 射线衍射分析确定,所得的双萘卟啉具有平面几何形状;与简单的卟啉相比,它们还显示出吸收最大值发生红移。
Bis-naphthobipyrrolylmethene derived BODIPY complex: an intense near-infrared fluorescent dye
作者:Tridib Sarma、Pradeepta K. Panda、Jun-ichiro Setsune
DOI:10.1039/c3cc44834g
日期:——
Synthesis of a novel pi-extended BODIPY derived from naphthobipyrrole is presented. This dye molecule displays very intense near-infrared (NIR) absorption (epsilon > 400,000 M(-1) cm(-1)) and emission bands (>700 nm), accompanied by high quantum yield (phif = 0.65) owing to its extended pi-conjugation along with imposed structural rigidification.
Bis(naphthobipyrrolyl)methene-derived hexapyrrolic BODIPY as a single-molecule helicate with near-infrared emission
作者:Sipra Sucharita Sahoo、Pradeepta K. Panda
DOI:10.1039/d3cc02336b
日期:——
Helically twisted bis(naphthobipyrrolyl)methene-derived open-chain hexapyrroles have been synthesized as HCl salts and the corresponding BODIPY. Their solid-state structures elucidated by single-crystal X-ray diffraction analysis clearly showed the presence of intramolecularhydrogenbonds, which were concluded to play a pivotal role in stabilizing the twisted conformation. Both molecules were observed
π-Extension in Expanded Porphyrins: Cyclo[4]naphthobipyrrole
作者:Vladimir V. Roznyatovskiy、Jong Min Lim、Vincent M. Lynch、Byung Sun Lee、Dongho Kim、Jonathan L. Sessler
DOI:10.1021/ol2023449
日期:2011.10.21
The pi-extended cyclo[4]naphthoblpyrrole la has been prepared via an Fe(III)-mediated oxidative cyclization of an alkyl-substituted naphthoblpyrrole. The structure of this new expanded porphyrin, isolated as the deprotonated sulfate salt, was characterized by spectroscopic means, as well through a single crystal X-ray diffraction analysis. Salt la displays a total of four well-resolved redox waves as determined by cyclic voltammetry. It also displays bathochromically shifted near-IR absorption maxima compared to the diprotonated forms of nonannulated cyclo[8]pyrroles.
Dinaphthoporphycenes: Synthesis and Nonlinear Optical Studies
作者:Tridib Sarma、Pradeepta K. Panda、P. T. Anusha、S. Venugopal Rao
DOI:10.1021/ol102378g
日期:2011.1.21
Naphthobipyrrole-derived porphycenes are synthesized for the first time via McMurry coupling of the beta-alkylated 2,9-diformylnaphthobipyrrole derivatives, which in turn were prepared easily from 2,3-naphthalene bishydrazine in four steps. Insertion of nickel into the porphycene core results in transformation of the rectangular N4-core into a square type geometry owing to the fusion of naphthalene moiety onto the bipyrrole entities. These porphycenes show large, intensity dependent three-photon absorption.