Stabilizer 37 -molecular

Santiveri, C. M., Jimenez, M. A., Rico, M., van Gunsteren, W. F., and Daura, X. (2002). /3-Hairpin folding and stability Molecular dynamics simulations of designed peptides in aqueous solution. Submitted. 

Intramolecular interaction is a powerful factor that controls molecular architecture, particularly in the case of geometrically flexible molecular systems. The existence and energies of intramolecular classical hydrogen bonds and their role in chemistry and biochemistry are well known. They stabilize molecular conformations, promote short- and long-range proton transfers, participate in the creation of three-dimensional structures of large molecules and play a fundamental role in the phenomenon of molecular recognition. 

Further, a systematic study of energy characteristics in a series of azines containing 2-4 nitrogen atoms in the molecule and of dihydro-azines has been published.29,30 A correlation was found between the calculated quantities and the experimental electronic excitation energies as well as the stabilities. Molecular diagrams were calculated for a selected group of representatives. Quite recently, various HMO and SCF characteristics have been calculated for a series of pyridinelike heterocycles and their amino derivatives.31... 

Rowland, L.J. Strommer, J.N. (1986). Anaerobic treatment of maize roots affects transcription of Adhl and transcript stability. Molecular and Cellular Biology 6, 3368-72. 

The tail domain in trichocyte Type I chains contains a tenfold P-C-X repeat, seven of them contiguously (Parry and North, 1998). Studies of its likely conformation suggest that it will most likely adopt a left-handed polyglycine II structure with three residues per turn (Fig. 3a). The cysteine residues would thus lie along one edge of the structure, where they would be in positions to form disulphide bonds with cysteine residues in a similar structure from a different molecule. The role of this sequence motif would appear to be that of stabilizing molecular assembly within the IFs. 

In addition to studying the effect of the stabilizer molecular weight on the MMA dispersion polymerization, the effect of the stabilizer concentration was also analyzed. The concentration of poly(FOA) stabilizer was systematically varied while the amount of MMA was held constant at 21 w/v % in CO2 (Table 2). It was found that as little as 0.24 wt. % (based on monomer) is needed to stabilize the polymerization and give spherical particles. Additionally, excess surfactant could be washed from the finished particle surface with CO2, resulting in... 

Luminescence properties of and phenomena in polymer systems continues to be widely researched in connection with mechanisms of polymer degradation and stabilization, molecular dynamics, solubility, blend miscibility, and solar energy harnessing. A number of interesting reviews have appeared. Molecular dynamics of polymers in solution and in the solid state have been covered, as has excimer formation,photoresponsive polymers,behaviour of polymer gels, and photochromic phenomena. Photoisomerization of enzymes and model compounds has also been discussed in depth, with particular emphasis on proteins and synthetic polymers containing azo-compounds or spirobenzopyrans. ... 

Compound Stmcture number CAS Registry Number 8 Stability Molecular formula (mol wt)... 

Our bi- and tri-metallic species are derived from precursor molecules that can be denuded (chemically) to expose only the mixed-metal constituent atoms. The nanoalloys that almost all others prepare are generally formed by methods that rely on sequential addition of separate solutions such as HAuCl and PdCl [35] to form Au-Pd nanoalloys. Moreover, such nanoalloys (like the metallic nanoparticles now in extensive use [45]) are utilized in their passivated form, which means that they have surfactant species such as poly(vinyl pyrrolidone), PVP, or poly-diaUyl dimethyl ammonium chloride (PDDA) covering their surfaces (The molecular weight of which may be as large as 450 kDa). Our nanoparticles are free from such surfactants or any other stabilizing molecular entity. 

Phosphorus nuclear magnetic shielding anisotropy in (1-hydroxyalkyl)dimethyl-phosphine sulfides has been studied using the IGLO method, and the tautomeric stability, molecular structure, and internal rotation of methylphosphonic dicyanide MeP(0)(CN)2, dicyanomethoxyphosphine MeOP(CN)2, and their isocyano analogues have been extensively followed using ab initio calculations. ... 

The development of an analytical method for the separation of a natural product encompasses the selection of the stationary and mobile phase taking into consideration the analyte properties (hydrophobicity/hydrophili-city, acid-base properties, charge, temperature stability, molecular size) and is followed by a systematic optimization of the (isocratic or gradient) separations, using either aliquots of the crude extract or, if available, analytical standards. 

Solids based on sp hybridization, although subject of intense experimental efforts, seem to be the most elusive of the different carbon families [5]. The existence of linear chains of carbon atoms linked by alternating single and triple bonds (polyyne) or double bonds (polycumulene) with stabilizing molecular complexes at the end of the chains, has been recognized in interstellar molecular clouds and can be artificially produced by different chemical routes [6-8],... 

Recently, Holmes and coworkers succeeded in stabilizing molecular squares by reacting [Tp Fe(CN)3] (Tp = hydridotris(3,5-dimethylpyrazol-l-yl)borate) is a derivative of (HB(pz)3) and M (OTf)2 (OTf = trifiuo-romethanesulfonate, M = Mn, Co, and Ni) in DMF and obtained tetranuclear Fc2M2 complexes (Fig. 14) [40]. The metal ions occupy the vertices of the square the coordination sphere of the Ni atom is completed by four DMF... 

The choice of matrix and functional group depends on the pH stability, molecular size and isoelectric points ( PI) of the protein, and on the requirements of the application. PI can be measured by electrophoresis or can be checked in the comprehensive lists of PI for proteins. 

Pyridazine and its derivatives have been extensively studied by a variety of computational methods to correlate the predicted values of their physical properties with the measured ones. As for other azines also for pyridazine several methods were used to calculate its thermodynamic stability, molecular geometry, electron density distribution, ionization potentials, and dipole moments (89KGS1587 91RRC399) and the significance of different criteria for assessing the 77-electron delocalization were also reviewed (92H1631). 

C.M. Liauw, A. Quadir, N.S. Allen, M. Edge, and A. Wagner, Effect of hindered piperidine light stabilizer molecular structure and UV-absorber addition on the oxidation of HDPE. Part 1. Long-term thermal and photo-oxidation studies, J. Vinyl Add. Technol. 2004, 10, 79-87. 

Most of the molecular relativistic calculations were performed for compounds studied experimentally various halides, oxyhalides and oxides of elements 104 through 108 and of their homologs in the chemical groups. The aim of those works was to predict stability, molecular geometry, type of bonding (ionic/covalence effects) and the influence of relativistic effects on those properties. On their basis, predictions of experimental behavior were made (see Section 3). A number of hydrides and fluorides of elements 111 and 112, as well as of simple compounds of the 7p elements up to Z=118 were also considered with the aim to study scalar relativistic and spin-orbit effects for various properties. 

Bruylants G, Wouters J, Michaux C (2005). Differential scanning calorimetry in life science Thermodynamics, stability, molecular recognition and application in drug design. Curr. Med. Chem. 12(17) 2011-2020. 

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