Synthesis and characterization of novel (oligo)thienyl-imidazo-phenanthrolines as versatile π-conjugated systems for several optical applications

Batista, Rosa Maria Ferreira; Costa, Susana P. G.; Belsley, M.; Lodeiro, Carlos; Raposo, M. Manuela M.

doi:10.1016/j.tet.2008.07.043

Cited by 86 publications

(47 citation statements)

References 110 publications

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“…Spectra obtained for the diruthenium complexes showed both acetone and water signals, and elemental analysis data matched better with predicted formulas when these solvents were considered. This observation has been reported for similar polynuclear compounds crystallized from mixed-solvent systems [20]. Fig.…”

Section: H Nmr Spectrasupporting

confidence: 87%

Metal–metal communication in diruthenium complexes of the bridging ligand bis(imidazo[4,5-f][1,10]phenanthroline)

Srinivasan

Mason

MacNeil

et al. 2011

Inorganica Chimica Acta

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Section: H Nmr Spectrasupporting

confidence: 87%

Metal–metal communication in diruthenium complexes of the bridging ligand bis(imidazo[4,5-f][1,10]phenanthroline)

Srinivasan

Mason

MacNeil

et al. 2011

Inorganica Chimica Acta

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“…Preparation of IML 3 began with lithiation and carbonylation of 2-methoxythiophene ( 26 ) in Scheme 4. 23 A Knoevenagel condensation with diethyl malonate introduced the required ester, and subsequent reduction with sodium borohydride selectively removed the reactive alkene to give diester 28 . 24,25 The esters were hydrolyzed with potassium hydroxide.…”

Section: Resultsmentioning

confidence: 99%

Design of CID-cleavable protein cross-linkers: identical mass modifications for simpler sequence analysis

et al. 2015

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The cross-linking Mass Spectrometry (XL-MS) technique has enormous potential for studying the interactions between proteins, and it can provide detailed structural information about the interaction interfaces in large protein complexes. Such information has been difficult to obtain by conventional structural methods. One of the primary impediments to the wider use of the XL-MS technique is the extreme challenge in sequencing cross-linked peptides because of their complex fragmentation patterns in MS. A recent innovation is the development of MS-cleavable cross-linkers, which allows direct sequencing of component peptides for facile identification. Sulfoxides are an intriguing class of thermally-cleavable compounds that have been shown to fragment selectively during low-energy collisional induced dissociation (CID) analysis. Current CID-cleavable cross-linkers create fragmentation patterns in MS2 of multiple peaks for each cross-linked peptide. Reducing the complexity of the fragmentation pattern in MS2 facilitates subsequent MS3 sequencing of the cross-linked peptides. The first authentic identical mass linker (IML) has now been designed, prepared, and evaluated. Multistage tandem mass spectrometry (MSn) analysis has demonstrated that the IML cross-linked peptides indeed yield one peak per peptide constituent in MS2 as predicted, thus allowing effective and sensitive MS3 analysis for unambiguous identification. Selective fragmentation for IML cross-linked peptides from the 19S proteasome complex was observed, providing a proof-of-concept demonstration for XL-MS studies on protein complexes.

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“…The subsequent explorations have gained an increasing prominence on the strength of their fruitful implementations such as various luminescent sensors or stimulants, pharmacological agents, photoactive materials of organic light emitting diode (OLED) devices and mesophasic ingredients of liquid crystals. More precisely imp derivatives, associated with their large Stokes shifts and luminescence lifetimes, have excellent photophysical applications such as efficient hole blocker and electron transporters in OLED materials and molecular switches [2][3][4][5][6][7][8][9]. They are available as multifunctional ligands in the construction of high order non-linear systems [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

A rational synthesis of a novel imidazo[4,5-f][1,10]phenanthroline templated Schiff base: Characterization, photoluminescence and DFT/TD-DFT study

Karslıoğlu¹,

Demir²,

Yilmaz³

et al. 2017

Bull. Chem. Soc. Eth.

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H-NMR, IR, elemental analysis and electrospray ionization mass spectroscopy (ESI-MS) techniques. Solid state emission spectrum of impap showed two distinct strong emission maxima with large Stokes shifts. The ground state gas phase geometry of impap was predicted by DFT calculations. Excited state properties of the molecule were examined through TD-DFT calculations conducted at the optimized geometry. Responsible transitions for the strong fluorescence of impap were assigned to single component charge transfer transitions with large oscillator strengths based on the ground state calculated molecular orbital contributions.

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Synthesis and characterization of novel (oligo)thienyl-imidazo-phenanthrolines as versatile π-conjugated systems for several optical applications

Cited by 86 publications

References 110 publications

Metal–metal communication in diruthenium complexes of the bridging ligand bis(imidazo[4,5-f][1,10]phenanthroline)

Metal–metal communication in diruthenium complexes of the bridging ligand bis(imidazo[4,5-f][1,10]phenanthroline)

Design of CID-cleavable protein cross-linkers: identical mass modifications for simpler sequence analysis

A rational synthesis of a novel imidazo[4,5-f][1,10]phenanthroline templated Schiff base: Characterization, photoluminescence and DFT/TD-DFT study

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