The biomolecule chelidonic acid (H2chel, 4-oxo-4H-pyran-2,6-dicarboxylic acid) has been used to build new coordination polymers with the bridging N,N?-ligands 4,4?-bipyridine (4,4-bipy) and 1,2-bis(4-pyridyl)ethane (bpe). Four compounds have obtained as single crystals: 1D cationic [M(4,4-bipy)(OH2)4]2+ chelidonate anions water molecules in second sphere 1?[Zn(4,4-bipy)(H2O)4]chel·3H2O (2) two ...

Herein we demonstrate a novel way of modifying the colloidal stability proteins by presence hydrophobic molecules. A protein capable self-assembly into nanofibrils (PNFs) is milled with molecular material. Upon dissolution in acidic water followed heating, are converted PNFs containing dyes. When aqueous dispersions such heated, films formed at air–water interface. The contain ordered, opticall...

Sodium citrate as a highly efficient catalyst is developed for the synthesis of functionalized 2-amino-3-cyano-4H-pyrans and pyran-annulated heterocycles. This method involves one-pot three-component reaction aromatic aldehydes, malononitrile 1,3-dicarbonyl compounds with EtOH: H2O (1:1 v/v) solvent under room temperature. protocol presents several advantages such shorter time, utilization eco-...

Carbon quantum dots (CQDs), also known as carbon (CDs), are novel zero-dimensional fluorescent carbon-based nanomaterials. CQDs have attracted enormous attention around the world because of their excellent optical properties well water solubility, biocompatibility, low toxicity, eco-friendliness, and simple synthesis routes. numerous applications in bioimaging, biosensing, chemical sensing, nan...

In the title mol-ecule, C(17)H(20)O(8), the two pyran rings form a dihedral angle of 61.2 (2)°. The two hy-droxy-methyl groups are each disordered over two sets of sites in a 0.764 (3):0.236 (3) ratio. In the crystal, O-H⋯O hydrogen bonds link the mol-ecules into layers parallel to the ac plane.