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Browsing by Subject "Porphyrins"

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9,10,19,20-Tetraarylporphycenes

Anju, K S; Ramakrishnan, S; Ajesh P Thomas; Suresh, E; Srinivasan, A (American Chemical Society, 2008)

meso-Tetraarylporphycenes, structural isomers of meso-tetraarylporphyrins, were synthesized by the acid-catalyzed oxidative coupling reaction for the first time which is an alternative synthetic methodology to the traditional ...
Aromatic Core Modified Decaphyrins with the largest Two-Photon absorption cross-sections: Syntheses and Characterization

Rath, H; Prabhuraja, V; Chandrashekar, T K; Nag, A; Goswami, D; Joshi, B S (American Chemical Society, 2006)

Core-modified aromatic decaphyrins with 42π conjugated electrons exhibit the highest two-photon absorption cross-section value (σ2 = 108 000 GM) known for any organic molecule, suggesting possible device applications in ...
Aromatic expanded isophlorins: Stable 30 pi annulene analogues with diverse structural features

Reddy, J S; Anand, V G (American Chemical Society, 2009)

Synthesis and structural diversity of novel aromatic expanded isophlorins are described. Expanded isophlorins are higher analogues of 20 pi isophlorin; 30 pi isophlorins are the simplest examples of expanded isophlorins. ...
Calix[n]metallocenyl[m]phyrins (n=1, 2 and m=2, 4): aryl vs. alkyl

Ramakrishnan, S; Anju, K S; Ajesh P Thomas; Suresh, E; Srinivasan, A (Royal Society of Chemistry, 2010)

The syntheses, spectral and structural characterization of metallocenes incorporated normal and expanded calixphyrins are reported.
Cyclotriphosphazene appended porphyrins and fulleropyrrolidine complexes as supramolecular multiple photosynthetic reaction centers: steady and excited states photophysical investigation

Vishnu, S N; Pareek, Y; Venugopal, K; Ravikanth, M; Ajayaghosh, A (Royal Society of Chemistry, 2014)

New multiple photosynthetic reaction centers were constructed from cyclophosphazene decorated multiporphyrin chromophores and a fulleropyrrolidine having a pyridine ligand (FPY). The excited state electron transfer in the ...
Effect of meso aryl substituents on the synthesis of core-modified expanded porphyrins

Kumar, R; Misra, R; Chandrashekar, T K (American Chemical Society, 2006)

Synthesis and characterization of core-modified [26] hexaphyrin (1.1.1.1.0.0). A meso aryl rubyrin isomer and a new 54 d-modified dodecaphyrin are reported.
Exploring anagostic interactions in 5,15-porphodimethene metal complexes

Holaday, M G D; Tarafdar, G; Arun Kumar; Reddy, M L P; Srinivasan, A (Royal Society of Chemistry, 2014)

Using a metal templating strategy, 5,15-porphodimethene metal complexes were synthesized and their structure confirmed by single crystal X-ray analysis. The anagostic interaction causes distortion, while the hydrogen bonding ...
Planar meso pentafluorophenyl core modified isophlorins

Reddy, J S; Anand, V G (American Chemical Society, 2008)

Isophlorins and its analogues bridge the structural features between porphyrins and annulenes. Invariably they are known to be unstable but can be stabilized by appropriate substituents in the core and periphery of a ...
Smaragdyrin–Azobenzene conjugates: Syntheses, structure, and spectral and electrochemical properties

Gokulnath, S; Prabhuraja, V; Sankar, J; Chandrashekar, T K (Wiley, 2007)

The syntheses, characterization, and spectral properties of smaragdyrin–azobenzene conjugates are reported. Our synthetic strategy involves linking the azobenzene group in one of the precursors to a dipyrromethane subunit, ...

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