Results 31 to 40 of about 2,989 (293)

1-(Imidazo[1,2-a]pyridin-1-ium-1-yl)-2,3,4-trioxocyclobutan-1-ide

Molbank, 2019
1-(Imidazo[1,2-a]pyridin-1-ium-1-yl)-2,3,4-trioxocyclobutan-1-ide was obtained by reaction of squaric acid with imidazo[1,2-a]pyridine in acetic anhydride.
Johann Grünefeld, Conrad Kunick, Peter G. Jones   +2 more
doaj   +1 more source

A study of dye anchoring points in half-squarylium dyes for dye-sensitized solar cells [PDF]

, 2014
This paper reports the synthesis of a series of new half-squaraine dyes (Hf-SQ) based around a common chromophoric unit consisting of linked indoline and squaric acid moieties.
Coles, S.J., Connell, A., Cooke, G., Davies, M.L., Gwenin, C.D., Holliman, P.J., Horton, P.N., Pitak, M.B., Weiss, S., Weiss, S.A.   +9 more
core   +4 more sources

2,3,4-Trioxo-1-(1H-pyrrolo[2,3-b]pyridin-7-ium-7yl)-cyclobutan-1-ide

Molbank, 2018
2,3,4-Trioxo-1-(1H-pyrrolo[2,3-b]pyridin-7-ium-7-yl)-cyclobutan-1-ide was obtained by reaction of squaric acid with 7-azaindole in acetic anhydride.
Duc Hoàng Lande, Conrad Kunick, Johann Grünefeld   +2 more
doaj   +1 more source

Squaraine-Based Optical Sensors: Designer Toolbox for Exploring Ionic and Molecular Recognitions

Chemosensors, 2021
Small molecule-based chromogenic and fluorogenic probes play an indispensable role in many sensing applications. Ideal optical chemosensors should provide selectivity and sensitivity towards a variety of analytes.
Daniel D. Ta, Sergei V. Dzyuba
doaj   +1 more source

(E)-2-(1-Cyano-2-methoxy-2-oxoethylidene)-3,4-dioxo-1-(pyridin-1-ium-1-yl)cyclobutan-1-ide

Molbank, 2017
(E)-2-(1-Cyano-2-methoxy-2-oxoethylidene)-3,4-dioxo-1-(pyridin-1-ium-1-yl)cyclobutan-1-ide was obtained by a three-component reaction of squaric acid dichloride with pyridine and methyl cyanoacetate.
Johann Grünefeld, Conrad Kunick, Peter G. Jones   +2 more
doaj   +1 more source

Pyrone-based inhibitors of metalloproteinase types 2 and 3 may work as conformation-selective inhibitors. [PDF]

, 2011
Matrix metalloproteinases are zinc-containing enzymes capable of degrading all components of the extracellular matrix. Owing to their role in human disease, matrix metalloproteinase have been the subject of extensive study.
de Oliveira, César AF, Durrant, Jacob D, McCammon, J Andrew   +2 more
core   +1 more source

Electric field induced polarization rotation in squaric acid crystals revisited

Condensed Matter Physics, 2022
Using the previously developed model we revisit the problem of the electric field induced polarization rotation in antiferroelectric crystals of squaric acid.
A. P. Moina
doaj   +1 more source

A few atoms make the difference: Synthetic, CD, NMR and computational studies on antiviral and antibacterial activities of glycopeptide antibiotic aglycon derivatives [PDF]

, 2018
K
Batta, Gyula, Bereczki, Ilona, Borbás, Anikó, Fizil, Ádám, Herczegh, Pál, Komáromi, István, Kurtán, Tibor, Mándi, Attila, Naesens, Lieve, Ostorházi, Eszter, Rozgonyi, Ferenc, Rőth, Erzsébet, Sipos, Attila, Sztaricskai, Ferenc, Vanderlinden, Evelien   +14 more
core   +1 more source

Adsorptive Properties of Poly(1-methylpyrrol-2-ylsquaraine) Particles for the Removal of Endocrine-Disrupting Chemicals from Aqueous Solutions: Batch and Fixed-Bed Column Studies [PDF]

, 2018
The adsorptive properties of poly(1-methylpyrrol-2-ylsquaraine) (PMPS) particles were investigated in batch and column adsorption experiments as alternative adsorbent for the treatment of endocrine-disrupting chemicals in water.
Dada, Horsfall, Ifelebuegu, Langergren, Nwabanne   +4 more
core   +1 more source

Ab initio simulations of hydrogen-bonded ferroelectrics: collective tunneling and the origin of geometrical isotope effects

, 2013
Ab initio simulations that account for nuclear quantum effects have been used to examine the order-disorder transition in squaric acid, a prototypical H-bonded antiferroelectric crystal.
Michaelides, A., Wikfeldt, K. T.
core   +1 more source