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Compound, compounds properties

Then, we have to reflect primarily on the domain of the science of chemistry Chemistry deals with compounds, their properties and their transformations. [Pg.1]

A challenging task in material science as well as in pharmaceutical research is to custom tailor a compound s properties. George S. Hammond stated that the most fundamental and lasting objective of synthesis is not production of new compounds, but production of properties (Norris Award Lecture, 1968). The molecular structure of an organic or inorganic compound determines its properties. Nevertheless, methods for the direct prediction of a compound s properties based on its molecular structure are usually not available (Figure 8-1). Therefore, the establishment of Quantitative Structure-Property Relationships (QSPRs) and Quantitative Structure-Activity Relationships (QSARs) uses an indirect approach in order to tackle this problem. In the first step, numerical descriptors encoding information about the molecular structure are calculated for a set of compounds. Secondly, statistical and artificial neural network models are used to predict the property or activity of interest based on these descriptors or a suitable subset. [Pg.401]

Molecular similarity is also useful in predicting molecular properties. Programs that predict properties from a database usually hrst search for compounds in the database that are similar to the unknown compound. The property of the unknown is probably close in value to the property for the known... [Pg.108]

An example of using one predicted property to predict another is predicting the adsorption of chemicals in soil. This is usually done by first predicting an octanol water partition coelficient and then using an equation that relates this to soil adsorption. This type of property-property relationship is most reliable for monofunctional compounds. Structure-property relationships, and to a lesser extent group additivity methods, are more reliable for multifunctional compounds than this type of relationship. [Pg.121]

Similar to their 2-hydroxy analogs, these compounds exhibit properties (cf. Chapter VII) that are characteristic of each of the two possible tautomeric forms the thiol (163a) and the thione or 2-thioxo-A-4-thiazoline (163b). [Pg.260]

Atoms combine with one another to give compounds having properties different from the atoms they contain The attractive force between atoms m a compound is a chemical bond One type of chemical bond called an ionic bond, is the force of attraction between oppositely charged species (ions) (Figure 1 4) Ions that are positively charged are referred to as cations, those that are negatively charged are anions... [Pg.10]

Cobalt difluoride [10026-17-2] C0F2, is a pink solid having a magnetic moment of 4, 266 x 10 J/T (4.6 Bohr magneton) (1) and closely resembling the ferrous (Fep2) compounds. Physical properties are Hsted in Table 1. Cobalt(II) fluoride is highly stable. No decomposition or hydrolysis has been observed in samples stored in plastic containers for over three years. [Pg.178]

Historically, the discovery of one effective herbicide has led quickly to the preparation and screening of a family of imitative chemicals (3). Herbicide developers have traditionally used combinations of experience, art-based approaches, and intuitive appHcations of classical stmcture—activity relationships to imitate, increase, or make more selective the activity of the parent compound. This trial-and-error process depends on the costs and availabiUties of appropriate starting materials, ease of synthesis of usually inactive intermediates, and alterations of parent compound chemical properties by stepwise addition of substituents that have been effective in the development of other pesticides, eg, halogens or substituted amino groups. The reason a particular imitative compound works is seldom understood, and other pesticidal appHcations are not readily predictable. Novices in this traditional, quite random, process requite several years of training and experience in order to function productively. [Pg.39]

These new synthetic mbbers were accessible from potentially low cost raw materials and generated considerable woddwide interest. For a time, it was hoped that the polysulftde mbbers could substitute for natural mbber in automobile tires. Unfortunately, these original polymers were difficult to process, evolved irritating fumes during compounding, and properties such as compression set, extension, and abrasion characteristics were not suitable for this apphcation. [Pg.455]

Nonmineralized SGA flows freely, and is often known as sandy alumina because it easily covers the cryoflte bath of aluminum electrolysis cells (see Aluminum compounds, introduction). Properties typical of a sandy SGA are shown in Table 1. Aluminum smelting technology in the United States is primarily based upon sandy alumina. Older European smelting technology, however, is based upon a poor flowing, low bulk density, highly mineralized SGA called floury alumina, composed principally of a-Al O. ... [Pg.159]

Tire Component Compound Properties. Table 16 summarizes desired properties of three tire components in generalized terms. [Pg.248]

Snow and wet traction are highly dependent on the tread pattern. Although the tread pattern overwhelms the compound properties in significance, the latter can play a role in optimizing snow traction. Compounds using polymers with low glass-transition temperature, T (—40 to —OS " C), remain more flexible at low temperatures. Tread compounds with low complex modulus at 0—20°C have better snow traction. [Pg.252]

Several properties of the filler are important to the compounder (279). Properties that are frequentiy reported by fumed sihca manufacturers include the acidity of the filler, nitrogen adsorption, oil absorption, and particle size distribution (280,281). The adsorption techniques provide a measure of the surface area of the filler, whereas oil absorption is an indication of the stmcture of the filler (282). Measurement of the sdanol concentration is critical, and some techniques that are commonly used in the industry to estimate this parameter are the methyl red absorption and methanol wettabihty (273,274,277) tests. Other techniques include various spectroscopies, such as diffuse reflectance infrared spectroscopy (drift), inverse gas chromatography (igc), photoacoustic ir, nmr, Raman, and surface forces apparatus (277,283—290). [Pg.49]

Properties. Sulfolane [126-33-0] C4HgS02 (1), also known as tetrahydrothiophene-1,1-dioxide and tetramethylene sulfone, is a colorless, highly polar, water-soluble compound. Physical properties are given ia Table 1 (1). [Pg.67]

Sulfonamides. A/-Halo-A/-alkylsulfonamides, RS02NR X, are relatively stable distillable Hquids. Under the influence of uvlight they form 1 1 adducts with olefins (67,100). Ai-/-Butyl derivatives rearrange forming precursors to cyclopropanes and sultams. A/-Halo-A/-sodioalk5lsulfonamidates, RS02NClNa, have been less extensively studied than their aromatic counterparts (70). The stabiHty of these compounds approaches that of the aromatic sulfonamides (80). The dodecyl compound exhibits properties of both a disinfectant and a surfactant. [Pg.456]

Diaziridines, discovered in 1958, six years after the oxaziridines, were almost immediately realized to be structural analogs of oxaziridines. Like these they showed oxidizing properties unexpected for other classes of organic nitrogen compound. Properties in common with oxaziridines include the rearrangement to open chain isomers on heating above 100 °C (for several diaziridines), and their hydrolytic behavior in acidic media, which leads to carbonyl compounds with conservation of the hetero-hetero bond. [Pg.212]

Compiled from Daubert, T. E., R. R Danner, H. M. Sibul, and C. C. Stebbins, DIPPR Data Compilation of Pure Compound Properties, Project 801 Sponsor Release, July, 1993, Design Institute for Physical Property Data, AlChE, New York, NY and from Thermodynamics Research Center, Selected Values of Properties of Hydrocarbons and Related Compounds, Thermodynamics Research Center Hydrocarbon Project, Texas A M University, College Station, Texas (extant 1994). [Pg.98]

Test suspect materials for undesired properties, (e.g., endothermic compounds, compounds containing oxidizing and reducing group such as ammonium nitrate)... [Pg.13]

It is possible to obtain pure enantiomers of chiral compounds. One property of separated enantiomers is to cause the rotation of the plane of polarized light by opposite... [Pg.75]

Neither compound exhibits properties that would suggest aromaticity. The NMR spectra are consistent with polyene structures. Both compounds are thermally unstable and revert back to dihydronaphthalenes ... [Pg.517]

Not all contaminants or chemicals are created equal in their capacity to cause adi ersc effects. Thus, cleanup standards or action levels are based in part on the compounds toxicological properties. Toxicity data are derived largely from animal experiments in which llie aninuils (primarily mice mid rats) are exposed to increasingly liighcr concentrations or doses. Responses or effects can vary widely from no obscn ablc effect to temporary and reversible effects, to permanent injury to organs, to chronic functional impairment to ultimately, death. [Pg.293]

In general the compounds have properties intermediate between those of the parent halogens, though a combination of aggressive chemical reactivity and/or thermal instability militates against the determination of physical properties such as mp, bp, etc., in some instances. However, even for such highly dissociated species as BrCl, precise molecular (as distinct from bulk) properties can be determined by spectroscopic techniques. Table 17.12 summarizes some of the more important physical properties of the... [Pg.825]

Establish the contribution the individual ingredients in the elastomeric compounds make to both the vulcanized compound properties and the uncured properties required for consistent processability. [Pg.452]

Hiraoka, M, (ed.) Crown Compounds — Properties and Application (in Japanese), Kodansha Scientific 1978... [Pg.140]


See other pages where Compound, compounds properties is mentioned: [Pg.489]    [Pg.1]    [Pg.298]    [Pg.16]    [Pg.257]    [Pg.391]    [Pg.147]    [Pg.165]    [Pg.403]    [Pg.458]    [Pg.526]    [Pg.861]    [Pg.520]    [Pg.290]    [Pg.44]    [Pg.458]    [Pg.599]    [Pg.833]   
See also in sourсe #XX -- [ Pg.334 ]




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A Typical Properties of Cross-Linked Rubber Compounds

Acid-base properties, binary hydrogen compounds

Acyl compounds physical properties

Acyl compounds spectroscopic properties

Aluminium compounds properties

Aluminium compounds thermal properties

Aluminum compounds thermodynamic properties

Aminov, B.Z. Malkin and M.A. Teplov, Magnetic properties of nonmetallic lanthanide compounds

Anticancer compounds cisplatin properties

Aromatic compounds and aromaticity physical properties

Aromatic compounds magnetic properties

Aromatic compounds properties

Aromatic compounds spectroscopic properties

Aromatic nitro compounds explosive properties

Aryl compounds, excited state properties

Basic pesticide compounds properties

Beryllium compounds properties

Beryllium compounds thermal properties

Biological Properties of Compounds

Boiling points compounds, physical properties

Boron compounds thermal properties

Cadmium compounds properties

Cadmium compounds thermal properties

Carbonyl compounds physical properties

Chalcogenide halide compounds magnetic properties

Chemical Properties of Liquid Nitro Compounds

Chemical Properties of Organopalladium Compounds

Chemical properties Condensation with other compounds

Chemical properties compounds

Chemical vapor deposition compound properties

Chromium compounds, general properties

Compound Ionization Properties

Compound Solid-state Properties

Compound molecular property predictor

Compound physical properties

Compound properties

Compound properties aqueous solubility

Compound properties chemistry control

Compound properties combinatorial libraries

Compound properties intestinal permeability

Compound properties metabolic stability

Compound properties permeability screens

Compound property prediction

Compound selection drug properties

Compound semiconductors surface bulk properties

Compound surface electronic properties

Compounding dynamic properties

Compounding dynamical mechanical properties

Compounding electrical properties

Compounding insulating properties

Compounding mechanical properties

Compounds dielectric properties

Compounds from aqueous solutions physical properties

Conductive thermoplastic compounds properties

Coordination compounds electrochemical properties

Coordination compounds magnetic properties

Covalent compounds physical properties

Covalent compounds, properties

Crystal optical properties inorganic compounds

Dewar properties compounds

Diacetamide compounds physical properties

Dianions compounds, properties

Diazo compounds properties

Diazo compounds structural properties

Dielectric compounds, magnetic propertie

Drug compound properties

Electrical properties dmit-based compounds

Electrical properties of polyphenylene sulfide compounds

Electrical properties related compounds

Electrical properties, semiconductive compounds

Ester compounds physicochemical properties

Experimental Studies of Compound Properties

Explosion Properties of Liquid Nitro Compounds

Fertilizers, compound physical properties

Filled compounds flow properties

Filled compounds with properties

Functional Properties of Cosmetically Important Compounds

Functional properties, sulfur compounds

Furyl-C-X Compounds Side-Chain Properties

Gallium compounds properties

General Properties of Covalent Compounds

General chemistry properties of rare earth elements and compounds

Germanium compounds chemical properties

Germanium compounds physical properties

Gignoux and D. Schmitt, Magnetic properties of intermetallic compounds

Graphite intercalation compounds properties

Graphite, intercalation compounds electronic properties

Graphite, intercalation compounds reduction properties

Gratz and M. J. Zuckermann, Transport properties (electrical resitivity, thermoelectric power thermal conductivity) of rare earth intermetallic compounds

Hafnium compounds chemical properties

Hafnium compounds properties

Halogen compounds characteristic chemical properties

Heteroaromatic compounds acid—base properties

Heterocyclic compounds properties

Heteropoly compounds acidic properties

Hydride compounds chemical properties

INORGANIC COMPOUNDS WITH UNUSUAL PROPERTIES

In PHYSICAL PROPERTIES OF CHEMICAL COMPOUNDS—III DREISBACH

Indium compounds properties

Indium compounds thermal properties

Inorganic compounds physical properties

Inorganic compounds standard thermodynamic properties

Intercalation compounds electrical properties

Interhalogen compounds physical properties

Interhalogen compounds properties

Intermetallic compounds thermodynamic properties

Ionic compounds acid-base properties

Ionic compounds colligative properties

Ionic compounds physical properties

Ionic compounds, properties

Iron compounds thermodynamic properties

Iron compounds, magnetic properties

Lanthanide compounds, magnetic properties

Lead compound, thermodynamic properties

Lead compounds Physical properties

Lead compounds basic properties

Liquid crystalline model compounds thermal properties

Magnesium compounds properties

Magnesium compounds thermal properties

Magnetic properties (also compounds

Magnetic properties compounds

Magnetic properties of coordination compounds

Magnetic properties uranium compounds

Mechanical properties compounds

Medicinal properties, sulfur compounds

Melting points compounds, physical properties

Mercury compounds properties

Mercury compounds with fungicidal properties

Metal cluster compounds properties

Mixed valence compounds electrical properties

Molecular compounds properties

Molybdenum compounds, general properties

Monocyclopentadienyl compounds physical properties

Moulding compounds processing properties

New compounds with tailor-made properties

Nickel compounds thermodynamic properties

Nonmetallic compounds, magnetic propertie

Optical properties ionic compounds

Organic Compounds and the Atomic Properties of Carbon

Organic compounds atomic properties

Organic compounds bond properties

Organic compounds carbon properties

Organic compounds physical properties

Organic compounds properties

Organic compounds superconducting properties

Organic compounds thermodynamic properties

Organic tracing compounds, properties

Organoaluminum compounds properties

Organolead compounds, properties

Organolithium compounds properties

Organometallic compounds chemical properties

Organometallic compounds magnetic properties

Organometallic compounds physical properties

Organophosphorus compounds chemical properties

Organophosphorus compounds enzyme-inhibiting properties

Organotin compounds atomic properties

Other compounds with fungicidal properties

Oxygen compounds structural properties

PROPERTIES OF AROMATIC COMPOUNDS

Phenolic compound properties

Physical Properties and Structures of Acyl Compounds

Physical Properties of Carbonyl Compounds

Physical Properties of Chemical Compounds

Physical Properties of Inorganic and Organic Compounds

Physical Properties of Liquid Nitro Compounds

Physical Properties of Organic Compounds

Physical and Chemical Properties of Organic Compounds

Physical properties compound class

Physical properties nitrogen compounds

Physical properties of compounds

Physical properties specific compound class

Physical properties, pure substances organic compounds

Physicochemical Properties of Test Compounds

Platinum compounds magnetic properties

Plutonium binary compound properties

Preparation and Properties of Organolithium Compounds

Preparation of Diboron Compounds and Their Properties

Preparation, Structure and Properties of Polyvalent Iodine Compounds

Properties and Uses of Aromatic Compounds

Properties for selected compounds

Properties of Azido Compounds

Properties of Intermetallic Compounds

Properties of Molecular Compounds

Properties of Organic Compounds

Properties of Organo-Sulfur Compounds

Properties of Organoaluminum Compounds

Properties of PVC Compounds

Properties of Polyanionic Compounds

Properties of compounds

Properties of compounds used

Properties of diazo compounds

Properties of halogen compounds

Properties of polymer-cyclodextrin-inclusion compounds

Properties of the Reference Compounds

Quadratic Non-Linear Optical Properties of Tin-Based Coordination Compounds

Quaternary ammonium compounds properties

Receptor targets compound properties

Rubber Compounds with Special Mechanical Properties

Rubber compounding carbon black properties

Sheet molding compound mechanical properties

Silica compounds basic properties

Silica compounds tensile properties

Silicon compounds properties

Silver compounds acid/base properties

Silver compounds properties

Simple molecular compounds, physical properties

Small-molecule compounds structural properties

Solid-state compounds metal properties

Solubility properties silica compounds

Solvent Effect and Aromatic Compounds Magneto-Optic Properties

Some physical properties of organic fluorine compounds

Spectroscopic Properties of Inorganic and Organometallic Compounds, Volume

Standard Thermodynamic Properties of Selected Minerals and Other Compounds

Styrene-butadiene rubber compounds adhesion properties

Tellurium compounds physical properties

The Magnetic Properties of Coordination Compounds

The Physical Properties of Carbonyl Compounds

The Unique Properties of Organofluorine Compounds

Thermodynamic properties inorganic compounds

Thulium compounds properties

Transition metal compounds magnetic properties

Transition metal compounds mechanical properties

Trifluoroacetate compounds physical properties

Tungsten compounds, general properties

Uranium binary compound properties

Uranium compounds, magnetic propertie

Urea inclusion compounds dynamic properties

Urea inclusion compounds structural properties

Vanadium compounds chemical properties

Vanadium compounds metabolic properties

Vanadium compounds physical properties

Viscoelastic properties of compounds

Ylide compounds reactivity properties

Ylide compounds structural properties

Zinc compounds properties

Zinc compounds thermal properties

Zinc compounds thermodynamic properties

Zirconium compounds chemical properties

Zirconium compounds properties

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