Publicaties

The title complex, [Pt(C10H5N2O3)Cl(C18H33P)], was synthesized by the reaction of [PtCl(C10H5N2O3)(η2-C2H4)] and PCy3 at room temperature for 2 h with a yield of 80%. The deprotonated 5-nitro-quinoline-8-ol (C10H5N2O3 -) anion coordinates to the metal atom in a bidentate mode via its N and O atoms with a N-Pt-O bite angle of 80.0 (3)°. The tri-cyclo-hexyl-phosphine P atom is in a trans position with respect to the N atom in the square-planar ...

rsCherry was one of the first reversibly photoswitchable variants to be developed from mCherry. However, its practical applications have been limited due to several inherent drawbacks. We have recently shown that the purified protein undergoes oxygen-induced chromophore degradation in solution, resulting in the progressive loss of its fluorescence and color. In this work, we present four crystal structures of rsCherry that exhibit varying ...

BOPAM exhibits high fluorescence quantum yields, along with exceptional photostability, rendering it a promising platform for applications as fluorescence sensors. However, the development of BOPAM-based fluorophores with extended emission wavelengths remains limited, and the underlying mechanisms of fluorescence quenching via the population of dark twisted intramolecular charge transfer (1TICT) excited states are not yet fully understood. To ...

Pyrrolidine-2,3-diones are important intermediates in the synthesis of numerous nitrogen-containing heterocycles which possess a broad spectrum of biological and pharmacological activities. In this article, we report the synthesis of 4-(1-methylamino)ethylidene-1,5-disubstituted pyrrolidine-2,3-diones via a reversible transimination reaction between Schiff' base (C=N) linkage-containing pyrrolidine-2,3-dione derivatives and methylamine with ...

Two novel complexes, [Cu(T4)Cl2] and [Zn(T4)Cl2], were synthesized from 1,1'-[(3-fluoro-phen-yl)methyl-ene]bis-[3-(3-fluoro-phen-yl)imidazo[1,5-a]pyridine] (T4), and copper(II) and zinc(II) chloride, respectively. The structures of these complexes were confirmed using ESI-MS, IR and 1H NMR spectra. The results reveal mononuclear structures in which the central metal atoms are coordinated by two N atoms from the imidazole rings and two Cl ...

This study reports the crystal structures of potassium and cesium salts of adenine (K-adenine and Cs-adenine) from the perspective of the interaction of alkali cations with purine nucleobases. Unlike previously-known guanine salts, both K-adenine and Cs-adenine are anhydrous, with the counter ions (K+ and Cs+) directly coordinating to the ring nitrogens of adenine anions. In both structures, the crystal packing is predominantly determined by ...

A novel category of asymmetric boron chromophores with the attachment of two BF2 moieties denoted as BOPAM has been successfully synthesized via a one-pot three-step reaction starting from N-phenylbenzothioamide. This synthetic route results in the production of [a] and [b]benzo-fused BOPAMs along with post-functionalization of the [a]benzo-fused BOPAMs. The photophysical properties of these compounds have been systematically investigated ...

Two new zinc(II) complexes, tri-ethyl-ammonium di-chlorido-[2-(4-nitro-phen-yl)-4-phenyl-quinolin-8-olato]zinc(II), (C6H16N){Zn(C21H13N2O3)Cl2] (ZnOQ), and bis-(tri-ethyl-ammonium) {2,2'-[1,4-phenyl-enebis(nitrilo-methyl-idyne)]diphenolato}bis-[di-chlorido-zinc(II)], (C6H16N)2[Zn2(C20H14N2O2)Cl4] (ZnBS), were synthesized and their structures were determined using ESI-MS spectrometry, 1H NMR spectroscopy, and single-crystal X-ray diffraction. The ...