Georgii Bogdanov

University of California, Irvine | UCI · Chemical and Biomolecular Engineering

Cephalopods are powerful sources of inspiration for the engineering of dynamic optical systems. We have drawn inspiration from cephalopod skin cells to engineer human cells to possess tunable transparency-changing and light scattering capabilities.

1,3-Dimethyl-2,3-dihydrobenzo[ d ]imidazoles, 1H , and 1,1',3,3'-tetramethyl-2,2',3,3'-tetrahydro-2,2'-bibenzo[ d ]imidazoles, 1 2 , are of interest as n-dopants for organic electron-transport materials. Salts of 2-(4-(dimethylamino)phenyl)-4,7-dimethoxy-, 2-cyclohexyl-4,7-dimethoxy-, and 2-(5-(dimethylamino)thiophen-2-yl)benzo[ d ]imidazolium ( 1g...

The current research work is about the synthesis of functionalized crystalline anilide, i.e., (Z)-4-((2-nitrophenyl)amino)-4-oxobut-2-enoic acid (NAOB) and its experimental and theoretical investigation. The single-crystal X-rays diffraction technique is employed for the crystal structure determination. The crystal structure of NAOB is compared wit...

Cephalopods (e.g., squids, octopuses, and cuttlefishes) possess remarkable dynamic camouflage abilities and therefore have emerged as powerful sources of inspiration for the engineering of dynamic optical technologies. Within this context, we have focused on the development of engineered living systems that can emulate the tunable optical character...

In the current research work, unsymmetrical acyl thiourea derivatives, 4-((3-benzoylthioureido)methyl)cyclohexane-1-carboxylic acid (BTCC) and methyl 2-(3-benzoylthioureido)benzoate (MBTB), have been synthesized efficiently. The structures of these crystalline thioureas were unambiguously confirmed by single-crystal diffractional analysis. The crys...

The title compound, C10H10FNO3, also known as [4-((4-fluorophenyl)amino)-4-oxobutanoic acid] (BFAOB), is synthesized efficiently, and its structure is confirmed by the SC-XRD technique, which indicates that two crystallographically different molecules are present in the asymmetric unit. The fluorobenzene ring is oriented at a dihedral angle of 76.0...

The antimalarial drug, pyrimethamine is not used any more for the treatment of malaria due to the resistance phenomenon, though, it can be modified for the potential reuse in medicinal chemistry. The current research article is about the possibility of obtaining novel form of the drug with better drug delivery properties by the preparation of new p...

Pyrimethamine was previously used for malaria treatment. It is not recommended nowadays for this purpose due to the developed drug resistance. In the current research work we are reporting the synthesis of pyrimethamine-based novel organic salt: 2, 4-diamino-5-(4-chlorophenyl)-6-ethylpyrimidin-1-ium 3-carboxybenzoate hydrate (1:1:1) (DECH). The org...

The title compound DBNB, C24H20N2O6, has been crystallized and studied by X-ray diffraction, spectroscopic and computational methods. In the title mol­ecule, which is based on a 1,4-distyryl-2,5-di­meth­oxy­benzene core with p-nitro-substituted terminal benzene rings, the dihedral angle between mean planes of the central fragment and the terminal p...

The two isomers 2′-(4-nitro­benzo­yloxy)aceto­phenone (systematic name: 2-acetyl­phenyl 4-nitro­benzoate) (I) and 2′-(2-nitro­benzo­yloxy)aceto­phenone (systematic name: 2-acetyl­phenyl 2-nitro­benzoate) (II), both C15H11NO5, with para and ortho positions of the nitro substituent have been crystallized and studied. It is evident that the variation...

The crystallization from different solvents of homologs of 1,3-diethyl-2-thiobarbituric acid and p-dimethylaminobenzene with different length of polymethine bridge between donor and acceptor groups (TB[n]) produced three pairs of polymorphs with number of C=C bonds in the chain n=1, 3 and 5. The homologs with the shortest (one methine unit) π-conju...

The three organic two-photon-absorbing cyclo­alkanone chromophores 2,4-bis­[4-(di­ethyl­amino)­benzyl­idene]cyclo­butanone, C26H32N2O (I), 2,5-bis­[4-(di­ethyl­amino)­benzyl­idene]cyclo­penta­none, C27H34N2O (II), and 2,6-bis­[4-(di­ethyl­amino)­benzyl­idene]cyclo­hexa­none, C28H36N2O (III), were obtained by a reaction between 4-(di­ethyl­amino)­be...

The title pull–push chromophores, 2-[4-(di­methyl­amino)­benzyl­idene]-1H-indene-1,3(2H)-dione, C18H15NO2 (ID[1]) and (E)-2-{3-[4-(di­methyl­amino)­phen­yl]allyl­idene}-1H-indene-1,3(2H)-dione, C20H17NO2 (ID[2]), have donor–π-bridge–acceptor structures. The mol­ecule with the short π-bridge, ID[1], is almost planar while for the mol­ecule with a lo...

The title compound, C4H12N⁺·C11H5N4⁻, contains one tetra­methyl­ammonium cation and one 1,1,7,7-tetra­cyano­hepta-2,4,6-trienide anion in the asymmetric unit. The anion is in an all-trans conjugated C=C bonds conformation. Two terminal C(CN)2 di­nitrile moieties are slightly twisted from the polymethine main chain to which they are attached [C(CN)2...

Two compounds, 1,3-diethyl-5-{(2E,4E)-6-[(E)-1,3,3-tri­methyl­indolin-2-yl­idene]hexa-2,4-dien-1-yl­idene}pyrimidine-2,4,6(1H,3H,5H)-trione or TMI, C25H29N3O3, and 1,3-diethyl-2-sulfanyl­idene-5-[2-(1,3,3-tri­methyl­indolin-2-yl­idene)ethyl­idene]di­hydro­pyrimidine-4,6(1H,5H)-dione or DTB, C21H25N3O2S, have been crystallized and studied. These com...

The synthesis, crystal structure studies and solvatochromic behavior of 2-{(2E,4E)-5-[4-(di­methyl­amino)­phen­yl]penta-2,4-dien-1-yl­idene}malono­nitrile, C16H15N3 (DCV[3]), and 2-{(2E,4E,6E)-7-[4-(di­methyl­amino)­phen­yl]hepta-2,4,6-trien-1-yl­idene}malono­nitrile, C18H17N3 (DCV[4]), are reported and dis­cussed in comparison with their homologs...

Structural and spectroscopic characteristics of merocyanine dyes are important because of their potential applications in optoelectronics and sensors. Herein we report synthesis, X-ray diffraction characterization of crystal structure, spectroscopic and NMR studies of four merocyanine dyes which, according to their strong donor-acceptor structure,...