Calixarene building block bis(2-hydroxyphenyl)methane (2HDPM) and hydrogen-bonded 2HDPM-H₂O complex in electronic excited state.

abstract：:The binding geometry of fluorouracil/cucurbit[n]urils (CB[n]s) complexes with n = 5-8 is investigated using the first-principles van der Waals density functional (vdW-DF) method, involving full geometry optimization. Such host-guest complexes are typically calculated using conventional DFT method, which significantly ...

journal_title：Journal of molecular modeling

authors： Sabet M,Ganji MD

更新日期：2013-09-01 00:00:00

abstract：:In the present investigation, the first hyperpolarizability of alkali and alkaline earth metal derivatives of cyclooctatetraene (COT) has been calculated using BHHLYP and CAM-B3LYP functional for 6-311++G(d,p), 6-311++G(3df,3pd), and aug-pc 2 basis sets. Introduction of Na/K atoms at the axial position of COT and Li, ...

journal_title：Journal of molecular modeling

authors： Roy RS,Mondal A,Nandi PK

更新日期：2017-03-01 00:00:00

abstract：:Molecular modeling of the La(III) complex of 3,3'-(benzylidene)bis(4-hydroxycoumarin) (PhDC) was performed using density functional theory (DFT) methods at B3LYP/6-31G(d) and BP86/TZP levels. Both Stuttgart-Dresden effective core potential and ZORA approximation were applied to the La(III) center. The electron density...

journal_title：Journal of molecular modeling

authors： Mihaylov T,Trendafilova N,Georgieva I

更新日期：2008-05-01 00:00:00

abstract：:Effects of substituents on anion binding in different urea based receptors have been examined using density functional (B3LYP/6-311+G**) level of theory. The complexes formed by a variety of substituted urea with a halide anion (fluoride) and an oxy-anion (acetate) have been calculated. The stronger complexes were pre...

journal_title：Journal of molecular modeling

authors： Ghosh A,Jose DA,Das A,Ganguly B

更新日期：2010-09-01 00:00:00

abstract：:In this work, we investigate the ground- and excited-state structures as well as the optical properties of a series of five formazanate dyes using state-of-the-art density-based and wavefunction-based methods. The present work is the first to evaluate the properties of formazanate-BF2 dyes with wavefunction-correlated...

journal_title：Journal of molecular modeling

authors： Laurent AD,Otten E,Le Guennic B,Jacquemin D

更新日期：2016-11-01 00:00:00

abstract：:The geometric and electronic structure of tetracyanoethylene (TCNE)-aniline (donor-acceptor type) complex has been investigated in gas phase using ab initio and time dependent density functional theory calculations. Both the above calculations predict a composed structure for the complex, in which the interacting site...

journal_title：Journal of molecular modeling

authors： Manna T,Bhattacharya S

更新日期：2009-08-01 00:00:00

abstract：:First principles calculations have been performed for C60@C180 carbon double-layer endofullerenes with up to: three diatomic radioiodine molecules (131I2), two potassium radio-iodide (K131I), and three sodium radio-iodide (Na131I) inside. The plane-wave pseudopotential (PP) method within the general gradient approxima...

journal_title：Journal of molecular modeling

authors： Valderrama A,Reynoso R,Gómez RW,Quintana M,Romero M

更新日期：2017-12-04 00:00:00

abstract：:Ethanol and water are the solvents most commonly used to extract flavonoids from propolis. Do hydrogen-bonding interactions exist between flavonoids and ethanol/water? In this work, this question was addressed by using density functional theory (DFT) to provide information on the hydrogen-bonding interactions between ...

journal_title：Journal of molecular modeling

authors： Zheng YZ,Zhou Y,Liang Q,Chen DF,Guo R

更新日期：2016-04-01 00:00:00

abstract：:Periplasmic binding proteins are the initial receptors for the transport of various substrates over the inner membrane of gram-negative bacteria. The binding proteins are composed of two domains, and the substrate is entrapped between these domains. For several of the binding proteins it has been established that a cl...

journal_title：Journal of molecular modeling

authors： Siuda I,Thøgersen L

更新日期：2013-11-01 00:00:00

abstract：:Electronic properties of Fe(2-10) clusters and their ions are described by an all-electron ab initio density functional theory computational analysis using the Handy's OPTX exchange and the gradient-corrected correlation functional of Perdew, Burke and Ernzerhof with a triple-zeta valence basis set plus polarization f...

journal_title：Journal of molecular modeling

authors： Cervantes-Salguero K,Seminario JM

更新日期：2012-09-01 00:00:00

abstract：:Protein folding is a fundamental topic in molecular biology. Conventional experimental techniques for protein structure identification or protein folding recognition require strict laboratory requirements and heavy operating burdens, which have largely limited their applications. Alternatively, computer-aided techniqu...

journal_title：Journal of molecular modeling

authors： Li B,Lin M,Liu Q,Li Y,Zhou C

更新日期：2015-10-01 00:00:00

abstract：:Ionic liquids (ILs) have been extensively studied and are considered green solvents capable of replacing traditional organic solvents. In this study, seven 1,2,3-triazolium derivative ILs have been synthesized. In order to study the effect of the cation nature on the ILs cytotoxicity, their structures were first ident...

journal_title：Journal of molecular modeling

authors： Glanzmann N,Carmo AML,Antinarelli LMR,Coimbra ES,Costa LAS,da Silva AD

更新日期：2018-06-14 00:00:00

abstract：:The biological toxicity of uranyl ion (UO (2) (2+) ) lies in interacting with proteins and disrupting their native functions. The structural and functional consequences of UO (2) (2+) interacting with cytochrome b (5) (cyt b (5)), a small membrane heme protein, and its heme axial ligand His39Ser variant, cyt b (5) H39...

journal_title：Journal of molecular modeling

authors： Wan D,Liao LF,Zhao MM,Wu ML,Wu YM,Lin YW

更新日期：2012-03-01 00:00:00

abstract：:In this study, the binding of Bovine serum albumin (BSA) with three flavonoids, kaempferol-3-O-a-L-rhamnopyranosyl-(1-3)-a-L-rhamnopyranosyl-(1-6)-b-D-galacto- pyranoside (drug 1),kaempfol-7-O-rhamnosyl-3-O-rutinoside (drug 2)andkaempferide-7-O-(4"-O-acetylrhamnosyl)-3-O-ruti- noside (drug 3) is investigated by molecu...

journal_title：Journal of molecular modeling

authors： Niu X,Gao X,Wang H,Wang X,Wang S

更新日期：2013-03-01 00:00:00

abstract：:The ONIOM2 (B3LYP/6-31G (d, p): PM3) and B3LYP/6-31G (d, p) methods were applied to investigate the interaction between STI-571 and abelson tyrosine kinase binding site. The complex of N-[4-methyl-3-(4-pyridin-3-yl-pyrimidin-2-ylamino)- phenyl]-benzamide (part of STI-571) and related 16 amino acid residues were found ...

journal_title：Journal of molecular modeling

authors： Xiong YZ,Chen PY

更新日期：2008-11-01 00:00:00

abstract：:Cystic fibrosis (CF), the most common lethal genetic disease among Caucasians, is caused by mutations in cystic fibrosis transmembrane conductance regulator (CFTR). CFTR's main role is to transport chloride ions across epithelial cell membranes. It also regulates many cell functions. However, the exact role of CFTR in...

journal_title：Journal of molecular modeling

authors： Siwiak M,Edelman A,Zielenkiewicz P

更新日期：2012-01-01 00:00:00

abstract：:Both [5]-circulene and [7]-circulene can be selected to design the molecular tweezers theoretically using the DFT method. Leaning on the cyclic polymerization mechanism, we obtain four new tweezer compounds. Theoretical results offer that tweezer compound (I) is additionally stable than other compounds because it has ...

journal_title：Journal of molecular modeling

authors： Issa AA,Obayes HR

更新日期：2020-09-29 00:00:00

abstract：:A novel mechanism for switching a molecular junction based on a proton transfer reaction triggered by an external electrostatic field is proposed. As a specific example to demonstrate the feasibility of the mechanism, the tautomers [2,5-(4-hydroxypyridine)] and {2,5-[4(1H)-pyridone]} are considered. Employing a combin...

journal_title：Journal of molecular modeling

authors： Hofmeister C,Härtle R,Rubio-Pons O,Coto PB,Sobolewski AL,Thoss M

更新日期：2014-04-01 00:00:00

abstract：:The C-terminus tail (G144-T149) of the hyperthermophile Sulfolobus tokodaii (Sto-RNase HI) plays an important role in this protein's hyperstabilization and may therefore be a good protein stability tag. Detailed understanding of the structural and dynamic effects of C-terminus tail deletion is required for gaining ins...

journal_title：Journal of molecular modeling

authors： Chen L,Zhang JL,Zheng QC,Chu WT,Xue Q,Zhang HX,Sun CC

更新日期：2013-06-01 00:00:00

abstract：:4-hydroxybenzoate oligoprenyltransferase of E. coli, encoded in the gene ubiA, is an important key enzyme in the biosynthetic pathway to ubiquinone. It catalyzes the prenylation of 4-hydroxybenzoic acid in position 3 using an oligoprenyl diphosphate as a second substrate. Up to now, no X-ray structure of this oligopre...

journal_title：Journal of molecular modeling

authors： Bräuer L,Brandt W,Wessjohann LA

更新日期：2004-12-01 00:00:00

abstract：:The ability to accurately predict the oxidation and reduction potentials of molecules is very useful in various fields and applications. Quantum mechanical calculations can be used to access this information, yet sometimes the usefulness of these calculations can be limited because of the computational requirements fo...

journal_title：Journal of molecular modeling

authors： Méndez-Hernández DD,Tarakeshwar P,Gust D,Moore TA,Moore AL,Mujica V

更新日期：2013-07-01 00:00:00

abstract：:Chemokine receptor 2 (CCR2) is a G-protein coupled receptor (GPCR) and a crucial target for various inflammatory and autoimmune diseases. The structure based antagonists design for many GPCRs, including CCR2, is restricted by the lack of an experimental three dimensional structure. Homology modeling is widely used for...

journal_title：Journal of molecular modeling

authors： Kim JH,Lim JW,Lee SW,Kim K,No KT

更新日期：2011-10-01 00:00:00

abstract：:Acylthiocarbamates (ATCs) have been identified as a class of potent non-nucleoside HIV-1 reverse transcriptase (RT) inhibitors. A computational strategy based on molecular docking studies followed by comparative molecular fields analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA) was used t...

journal_title：Journal of molecular modeling

authors： Cichero E,Cesarini S,Spallarossa A,Mosti L,Fossa P

更新日期：2009-07-01 00:00:00

abstract：:In the past several years, halogen bonds have been shown to be relevant in crystal engineering and biomedical applications. One of the reasons for the utility of these types of noncovalent interactions in the development of, for example, pharmaceutical ligands is that their strengths and geometric properties are very ...

journal_title：Journal of molecular modeling

authors： Riley KE,Murray JS,Fanfrlík J,Rezáč J,Solá RJ,Concha MC,Ramos FM,Politzer P

更新日期：2011-12-01 00:00:00

abstract：:We report the parameterization of AM1 for the elements palladium and silver. The basis sets for both metals contain one set each of s-, p- and d-orbitals. AM1 parameters are now available for H, C, N, O and F (which use the original AM1 parameters), Al, Si, P, S, Cl, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Br, Zr, Mo, Pd, ...

journal_title：Journal of molecular modeling

authors： Kayi H,Clark T

更新日期：2011-10-01 00:00:00

abstract：:Beta-lactamase (ampC) in general causes the onset of antibiotic resistance in pathogenic bacteria against the β-lactam antibiotics. Morganella morganii which belongs to the Proteae tribe of the Enterobacteriaceae family is a Gram-negative bacillus. Gram-negative bacteria are the key problematic agents among the human ...

journal_title：Journal of molecular modeling

authors： Alazmi M

更新日期：2020-07-07 00:00:00

abstract：:Density functional theory (DFT) was used to investigate nickel-catalyzed ring-opening hydroacylation of methylenecyclopropanes and benzaldehydes. The results indicated that the Ni-P(n-Bu)3 complex exhibited much more excellent catalysis than the other two complexes (Ni-PMe3 and Ni-P(t-Bu)3). The hydrogen migration was...

journal_title：Journal of molecular modeling

authors： Wang F,Zhu S,Meng Q,Yin H

更新日期：2015-08-01 00:00:00

abstract：:We present the synthesis and structure determination for two thiohydantoin compounds (5-benzylidene-2-sulfanylideneimidazolidin-4-one and 5-cinnamylidene-2-sulfanylideneimidazolidin-4-one), proposed as potential novel fungicides. The exact chemical structure of these molecules has not yet been determined since they ca...

journal_title：Journal of molecular modeling

authors： Kobyłka K,Żuchowski G,Tejchman W,Zborowski KK

更新日期：2019-08-24 00:00:00

abstract：:Meta-hybrid density functional theory calculations using M06-2X/6-31+G(d,p) and M06-2X/6-311+G(d,p) levels of theory have been performed to understand the strength of C-H(…)π interactions of two possible types for benzene-acetylene, 1,3,5-trifluorobenzene-acetylene and coronene-acetylene complexes. Our study reveals t...

journal_title：Journal of molecular modeling

authors： Dinadayalane TC,Paytakov G,Leszczynski J

更新日期：2013-07-01 00:00:00

abstract：:The CO and O2 adsorption as well as CO oxidation on cationic, neutral, and anionic AuM dimers (M = Pd, Ag) are studied by density functional calculations. Our results show that CO and O2 are adsorbed more stably on AuPd dimers than on AuAg dimers with corresponding charge state. O2 is favorable to be adsorbed on Pd at...

journal_title：Journal of molecular modeling

authors： Chen X,Lu RF,Kan EJ,Liu YZ,Xiao CY,Deng KM

更新日期：2014-06-01 00:00:00