In this report, we introduce a new strategy for controlling the stereochemistry in Ugi adducts. Instead of controlling stereochemistry directly during the Ugi reaction we have attempted to stereodefine the chiral center ...
We present a general approach in 1H-detected 13C solid-state NMR (SSNMR) for side-chain signal assignments of 10-50 nmol quantities of proteins using a combination of a high magnetic field, ultra-fast magic-angle spinning ...
We demonstrated that a cost-efficient, easy to prepare, hybrid SERS substrate-gold nanoparticles (AuNPs) on untreated Al foil (AlF) can effectively detect pharmaceuticals, such as paracetamol and clinical biomarkers, like ...
Rakymzhan, Adiya; Yakupov, Talgat A.; Yelemessova, Zarina; Bukasov, Rostislav; Yakovlev, Vladislav V.; Utegulov, Zhandos N.(Nazarbayev University School of Science and Technology, 2017-05-01)
Raman and Brillouin spectroscopic provide with a powerful way to non-invasively assess both chemical and physical (viscoelastic) properties. In this report, Brillouin microspectroscopy was used for real time analysis of ...
Convective instabilities in the advanced stages of nuclear shell burning can play
an important role in neutrino-driven supernova explosions. In our previous work, we studied
the interaction of vorticity and entropy waves ...
In recent years, functional nanoprobes with multiple imaging modalities have become an
emerging field of biomedical research. In this preliminary study, we utilized a facile hydrothermal
method for the preparation of ...
Abstract The rare earth metal Ce-doped cobalt ferrite samples CexCo1−xFe2O4 (x=0.1, 0.3, 0.5) were prepared by the sol–gel autocombustion route. The as-prepared samples were characterized by X-ray diffractometry, scanning ...
Abstract 4-Amino-2,1,3-benzothiadiazole (L) and its model complexes with Cu+, Zn2+, Ag+ and Cd2+ have been computationally investigated in order to reveal the origins of coordination preferences of this multidentate ligand. ...
Kussainova, Ardak M.; Akselrud, Lev G.; Suen, Nian-Tzu; Voss, Leonard; Stoyko, Stanislav; Bobev, Svilen(Journal of Solid State Chemistry, 2016-01-01)
Abstract The series of quaternary sulfides with general formula Ln2CuMS5 (Ln=La, Ce; M=Sb, Bi) have been synthesized by solid-state reactions. Three representative members have been structurally characterized by single-crystal ...
Abstract A novel porous sulfur/polypyrrole/multiwalled carbon nanotube composite (S/PPy/MWNT) was synthesized via in situ polymerization of pyrrole monomer with nano-sulfur and MWNT aqueous suspension followed by a low ...
Abstract We have synthesized amorphous silicon-nanomaterials displaying high capacity and stable cyclability using an original organometallic approach. The method is based on the decomposition of silicon compounds 1Si-P1-U-2016 ...
Lam, Kevin; Geiger, William E.(Journal of Organometallic Chemistry, 2016-08-15)
Abstract Three compounds have been prepared in which a 4-aminochloroquinoline moiety is covalently linked to a cyclopentadienyl manganese tricarbonyl moiety. One of these (“cymanquine”, 4) is the analogue of the potent ...
Lam, Kevin; Van Wyck, Stephen J.; Geiger, William E.(Journal of Electroanalytical Chemistry, 2017-08-15)
Abstract The anodic oxidation of a series of secondary-amine-substituted chloroquinoline derivatives, 1–5, has been studied in dichloromethane/0.05M [NBu4][B(C6F5)4]. Compounds 4 and 5 contain organometallic moieties of ...
Wang, Kunjie; Ji, Qingjuan; Li, Hongxia; Guan, Feng; Zhang, Deyi; Feng, Huixia; Fan, Haiyan(Journal of Inorganic Biochemistry, 2017-01-01)
Abstract In this work, hollow multiple-Ag-nanoclustes- C-shell nanocomposites (Ag@C) were synthesized by using silane coupling agent to graft carbon dots (CDs) with silver nanoparticles (AgNPs). CDs act as coating and ...
Sembayeva, Aliya; Berhane, Beniam; Carr, Jason A.(Tetrahedron, 2017-04-06)
Abstract Chemoenzymatic synthesis and modification of well-defined macrolactonic sophorolipid (SLML) analogues via a series of successive regioselective de-esterification/transesterification reactions is investigated. Of ...
Lam, Kevin; Geiger, William E.(Journal of Organometallic Chemistry, 2017-05-15)
The authors regret that the oxidation potentials given for compound 5 in the paper are incorrect. The correct values, referenced to ferrocene, are 0.88 V for the first oxidation and 1.14 V for the second oxidation.
Abstract We introduce a database of 20 accurate cycloreversion barrier heights of 5-membered heterocyclic rings (to be known as the CRBH20 database). In these reactions, dioxazole and oxathiazole rings are fragmented to ...
Balanay, Mannix P.; Enopia, Camille Marie G.; Lee, Sang Hee; Kim, Dong Hee(Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2015-04-05)
Abstract The use of theoretical techniques in the structural development of dye-sensitized solar cells helps in the efficient screening of the dyes. To properly rationalize the dye’s design process, benchmark calculations ...
Balanay, Mannix P.; Kim, Dong Hee(Computational and Theoretical Chemistry, 2015-03-01)
Abstract We report a computational modeling, based on DFT and TD-DFT methodologies, on the structural, electronic, and optical properties of different donor–acceptor co-polymer system in bulk heterojunction solar cells. ...
Kazakbayeva, Zhanna; Zhumagali, Shingis; Mahboob, Abdulla; O'Reilly, Robert J.(Chemical Data Collections, 2016-05-01)
Abstract Knowledge of the energies required to induce homolytic cleavage of the C–Br bonds of brominated organic molecules, a process that affords carbon-centered radicals and Br•, is of fundamental importance. Although ...