Substituent control of photophysical properties for excited-state intramolecular proton transfer (ESIPT) of o-LHBDI derivatives: a TD-DFT investigation.

abstract：:Density functional theory (DFT) has been applied to understand the influence of various linkages on the energetic properties and stability of the polynitro-biphenyl compounds. Structures were optimized using the B3PW91/6-31G(d,p) level, and the heats of formation (HOFs) were computed by employing the selected isodesmi...

journal_title：Journal of molecular modeling

authors： Nirwan A,Devi A,Ghule VD

更新日期：2019-09-15 00:00:00

abstract：:Cyclin-dependent kinases (Cdks) play important roles in the regulation of the cell cycle. Their inhibitors have entered clinical trials to treat cancer. Very recently, Davis et al. (Nat Struct Biol 9:745-749, 2002) have found a ligand NU6102, which has a high affinity with cyclin-dependent kinase 2 (K(i) = 6 nM) but a...

journal_title：Journal of molecular modeling

authors： Jiang Y,Zou J,Gui C

更新日期：2005-11-01 00:00:00

abstract：:Recently inulinase has regained interest due to its usage in the production of fructooligosaccharides, biofuels, and in pharmaceutical industries. Inulinases properties are experimentally reported by nomerous studies but their characteristics are just partially explained by only a few computational investigations. In ...

journal_title：Journal of molecular modeling

authors： Singh PK,Joseph J,Goyal S,Grover A,Shukla P

更新日期：2016-04-01 00:00:00

abstract：:We have examined the effects of substituents on the computed electrostatic potentials V(S)(r) and average local ionization energies I(S)(r) on the surfaces of model carbon nanotubes of the types (5,5), (6,1) and (6,0). For the (5,5) and the (6,1), the effects upon both V(S)(r) and I(S)(r) of substituting a hydroxyl gr...

journal_title：Journal of molecular modeling

authors： Politzer P,Murray JS,Lane P,Concha MC,Jin P,Peralta-Inga Z

更新日期：2005-09-01 00:00:00

abstract：:The Grand Canonical Monte Carlo method was used to analyse the phenomenon of adsorption of aromatic compounds (i.e. phenol, toluene, benzoic acid and salicylic acid) on the surface of the titania-silica (TiO2/SiO2) catalyst. We found that different types of interactions play important roles in the adsorption of molecu...

journal_title：Journal of molecular modeling

authors： Szyja B,Brodzik K

更新日期：2007-07-01 00:00:00

abstract：:Since the human body for many reasons can adapt and become resistant to drugs, it is important to develop and validate computer aided drug design (CADD) methods that could help predict binding affinity changes that can result from these resistant enzymes. The free energy perturbation (FEP) methodology is the most accu...

journal_title：Journal of molecular modeling

authors： Reddy RN,Mutyala RR,Aparoy P,Reddanna P,Reddy MR

更新日期：2010-02-01 00:00:00

abstract：:Human dihydrofolate reductase-like 1 (DHFRL1) has been identified as a second human dihydrofolate reductase (DHFR) enzyme. Although DHFRL1 have high sequence homology with human DHFR, dihydrofolate (DHF) exhibits a lowered binding affinity to DHFRL1 and the corresponding molecular mechanism is still unknown. To addres...

journal_title：Journal of molecular modeling

authors： Gao J,Cui W,Du Y,Ji M

更新日期：2013-12-01 00:00:00

abstract：:A molecular modeling strategy is proposed to describe the temperature (T) dependence of solubility parameter (δ) for the amorphous polymers which exhibit glass-rubber transition behavior. The commercial forcefield "COMPASS" is used to support the atomistic simulations of the polymer. The temperature dependence behavio...

journal_title：Journal of molecular modeling

authors： Chen X,Yuan C,Wong CK,Zhang G

更新日期：2012-06-01 00:00:00

abstract：:The concepts of polarization (induction), charge transfer and covalent bonding contributions are discussed in terms of weak interactions. They are shown to be different incarnations of the same phenomenon, so that using polarization to describe them is most consistent as it is the only real, measurable and uniquely de...

journal_title：Journal of molecular modeling

authors： Clark T

更新日期：2017-09-27 00:00:00

abstract：:Physical and chemical adsorption of CO2 on ZnO surfaces were studied by means of two different implementations of periodic density functional theory. Adsorption energies were computed and compared to values in the literature. In particular, it was found that the calculated equilibrium structure and internuclear distan...

journal_title：Journal of molecular modeling

authors： Farias SA,Longo E,Gargano R,Martins JB

更新日期：2013-05-01 00:00:00

abstract：:The efficiency and high specificity of tobacco etch virus protease (TEVp) has made it widely used for cleavage of recombinant fusion proteins. However, TEVp suffers from a few intrinsic defects such as self-cleavage, poorly expressed in E. coli and less soluble. So some mutants were designed to improve it, such as S21...

journal_title：Journal of molecular modeling

authors： Wang Y,Zhu GF,Ren SY,Han YG,Luo Y,Du LF

更新日期：2013-11-01 00:00:00

abstract：:In order to understand the mechanisms of ligand binding and the interaction between the ligand and the bovine phenol sulfotransferase, (bSULT1A1, EC 2.8.2.1) a three-dimensional (3D) model of the bSULT1A1 is generated based on the crystal structure of the estrogen sulfotransferase (PDB code 1AQU) by using the InsightI...

journal_title：Journal of molecular modeling

authors： Zheng QC,Li ZS,Xiao JF,Sun M,Zhang Y,Sun CC

更新日期：2005-03-01 00:00:00

abstract：:The mechanisms of LMnO3 (L = O-, Cl, NPH3, CH3, and Cp)-catalyzed oxidation of ethyne has been studied on the singlet and triplet hypersurfaces at the M06/6-311G(d) level of theory. For the first step, the [3 + 2] pathways to the formation of the metalla-2,5-dioxol-3-ene intermediate are kinetically and thermodynamica...

journal_title：Journal of molecular modeling

authors： Aniagyei A,Kwawu C,Harrison JJEK,Kwakye R

更新日期：2020-10-17 00:00:00

abstract：:Molecular-dynamics simulations have been used to study the diffusion of a short single model carbonic chain on the graphite (001) surface. The calculated diffusion coefficient (D) first increases, then decreases with increasing chain length (N). This abnormal behavior is similar to polymer lateral diffusion at the sol...

journal_title：Journal of molecular modeling

authors： Yang H,Lu ZY,Li ZS,Sun CC

更新日期：2006-03-01 00:00:00

abstract：:Quercetin is the most abundant flavonoid with potent antioxidant activities. In the current research, the antioxidant properties of quercetin and quercetin-DNA complex were investigated theoretically and experimentally. Free radical scavenging experiments with thiobarbituric acid-reactive substances (TBARS) and 1,1-di...

journal_title：Journal of molecular modeling

authors： Song X,Wang Y,Gao L

更新日期：2020-05-12 00:00:00

abstract：:Multicenter overlap integrals appearing in the evaluation of multicenter-multielectron integrals of central and noncentral interaction potentials are calculated using complete orthonormal sets of psi(alpha)-ETOs (alpha=1, 0, -1, -2,...). The final results are expressed in terms of two-center overlap integrals between ...

journal_title：Journal of molecular modeling

authors： Guseinov I,Aydin R,Mamedov B

更新日期：2003-10-01 00:00:00

abstract：:Fine-tuning of magnetic states via an understanding of spin injection on the edge of graphene nanoribbons should allow for greater flexibility of the design of graphene-based spintronics. On the basis of calculations, we predict that coupling constants of the exchange interaction in the series of nitroxide-functionali...

journal_title：Journal of molecular modeling

authors： Morozov V,Tretyakov E

更新日期：2019-02-09 00:00:00

abstract：:A theoretical study of a series of five glucose based glycolipid crown ethers and their complexes with Na(+) and K(+) was performed using the density functional theory with B3LYP/6-31 G* to obtain the optimized geometrical structures and electronic properties. The local nucleophilicity of the five molecules was invest...

journal_title：Journal of molecular modeling

authors： Nguan H,Ahmadi S,Hashim R

更新日期：2012-12-01 00:00:00

abstract：:The nitrogen doping and phenyl substitution effects on the geometries, molecular stacking character, electronic, and charge transport properties of tetrabenzoheptacene (TTBH) have been investigated by means of density functional theory (DFT) calculation and incoherent charge hopping model. Our results indicate that th...

journal_title：Journal of molecular modeling

authors： Guan L,Wang W,Shao R,Liu F,Yin S

更新日期：2015-05-01 00:00:00

abstract：:The B3LYP/6-31G (d) method of density functional theory (DFT) was used to study molecular geometry, electronic structure, infrared spectrum (IR) and thermodynamic properties. The heat of formation (HOF) and calculated density were estimated to evaluate the detonation properties using Kamlet-Jacobs equations. Thermal s...

journal_title：Journal of molecular modeling

authors： Zhao GZ,Lu M

更新日期：2013-01-01 00:00:00

abstract：:A mechanical molecular rotation model for liquid crystal (LC) systems is employed to evaluate phase transition temperature of fluorinated phenylbicyclohexane isomeric LC compounds. Results show that when a fluorine atom is substituted along the molecular long axis, an LC molecule acquires high rotational speed and its...

journal_title：Journal of molecular modeling

authors： Ma H,Li ZX,Shi DH,Liu YF

更新日期：2008-11-01 00:00:00

abstract：:B3LYP, PBE, M06-2X, B2PLYP, BN2PLYP-D, ωB97X-D, and MP2 levels of theory, in combination with the 6-311++G(d,p) and cc-pVTZ basis sets were comprehensively assessed for their ability to reproduce experimental FOX-7 structural and detonation data. ωB97X-D/cc-pVTZ, B3LYP/cc-pVTZ, and M06-2X/cc-pVTZ provided highly accur...

journal_title：Journal of molecular modeling

authors： Jeong K,Jeon Y,Kwon S

更新日期：2017-09-01 00:00:00

abstract：:The mechanism and kinetics of 2,2,3,3,3-pentafluoropropanol (CF₃CF₂CH₂OH) reaction with Chlorine atom (Cl) is investigated in this work. Two hydrogen abstraction channels of the title reaction are identified. The geometries of all the stationary points in the potential energy surface are obtained at the BHandHLYP/6-31...

journal_title：Journal of molecular modeling

authors： Yu AY,Zhang HX

更新日期：2013-10-01 00:00:00

abstract：:Mechanisms for the activation of water, ammonia, and other small molecules by the PCcarbeneP nickel pincer complex were studied computationally with the aid of density functional theory. The calculation results indicate that the strongly donating, nucleophilic carbene center can engage in a variety of heterolytic spli...

journal_title：Journal of molecular modeling

authors： Liu CC,Liu QL,Wu ZY,Chen YC,Xie HJ,Lei QF,Fang WJ

更新日期：2015-09-01 00:00:00

abstract：:We investigate the chemical reactivities, aromatic properties, and UV-Vis absorption spectra of four constitutional isomers of 1-butoxy-4-methoxybenzenepillar[5]arene with the DFT and TDDFT methods. These characteristics in the gas and solvent phases are discussed on the basis of electronic energy, the highest occupie...

journal_title：Journal of molecular modeling

authors： Zhang J,Ren S

更新日期：2016-09-01 00:00:00

abstract：:Prussian Blue is a paradigmatic mixed valence material and a parent compound to a broad family of electronically, optically, and magnetically active materials. Its exact composition varies greatly depending on the preparation route, leading to large variations in its electronic properties. The influence of water molec...

journal_title：Journal of molecular modeling

authors： Wojdeł JC

更新日期：2009-06-01 00:00:00

abstract：:Selective poly (ADP-ribose) polymerase (PARP)-1 inhibitor represents promising therapy against cancers with a good balance between efficacy and safety. Owing to the conserved structure between PARP-1 and PARP-2, most of the clinical and experimental drugs show equivalent inhibition against both targets. Most recently,...

journal_title：Journal of molecular modeling

authors： Cao R

更新日期：2016-04-01 00:00:00

abstract：:A high-throughput screen against Aurora A kinase revealed several promising submicromolar pyrimidine-aniline leads. The bioactive conformation found by docking these leads into the Aurora A ATP-binding site had a semicircular shape. Macrocycle formation was proposed to achieve novelty and selectivity via ring-closing ...

journal_title：Journal of molecular modeling

authors： Poulsen A,William A,Blanchard S,Nagaraj H,Williams M,Wang H,Lee A,Sun E,Teo EL,Tan E,Goh KC,Dymock B

更新日期：2013-01-01 00:00:00

abstract：:Vertical ionization energies (VIEs) of medazepam, nordazepam and their molecular subunits have been calculated using the electron propagator method in the P3/CEP-31G* approximation. Vertical electron affinities (VEAs) have been obtained with a ∆SCF procedure at the DFT-B3LYP/6-31+G* level of theory. Excellent correlat...

journal_title：Journal of molecular modeling

authors： Millefiori S,Alparone A

更新日期：2011-02-01 00:00:00

abstract：:Orvinols are potent analgesics that target opioid receptors. However, their analgesic mechanism remains unclear and no significant preference for subtype opioid receptor has been achieved. In order to find new orvinols that target the kappa-receptor, comparative 3D-QSAR studies were performed on 26 orvinol analogs usi...

journal_title：Journal of molecular modeling

authors： Li W,Tang Y,Xie Q,Sheng W,Qiu ZB

更新日期：2006-09-01 00:00:00