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asymmetric

asymmetric

asymmetric Sentence Examples

  • Although containing an asymmetric carbon atom it has not been resolved.

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  • The aldehyde group reacts with hydrocyanic acid to produce two stereo-isomeric cyanhydrins; this isomerism is due to the conversion of an originally non-asymmetric carbon atom into an asymmetric one.

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  • Of the tri-derivatives the symmetrical compounds boil at the lowest temperature, the asymmetric next, and the vicinal at the highest.

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  • Lowry and Armstrong represent these compounds by the following spatial formulae which postulate a y-oxidic structure, and 5 asymmetric carbon atoms, i.e.

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  • Lang, " Versuch einer Erklarung der Asymmetric der Gastropoder," Vierteljahrsschr.

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  • Since the molecule contains an asymmetric carbon atom, the acid exists in three forms, one being an inactive "racemic" mixture, and the other two being optically active forms. The inactive variety is known as paramandelic acid.

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  • It is a colourless solid which melts at 92° C. For silicon derivatives of the amines see Michaelis, Ber., 1896, 29, p. 710; on asymmetric silicon and the resolution of dl-benzyl-ethyl-propyl-silicol see F.

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  • 4,as mannose is produced by reversing the sign of the asymmetric system adjoining the terminal COH group.

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  • If the asymmetric system adjoining the COH group, which is that introduced in synthesizing the hexose from the pentose, be eliminated, the formulae at disposal for the two pentoses are CH 2 (OH) - - - COH CH 2 (OH)+-- COH.

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  • When such compounds are converted into corresponding dibasic acids, CO 2 H.[CH(OH)) 3.00 2 H, the number of asymmetric carbon atoms becomes reduced from three to two, as the central carbon atom is then no longer associated with four, but with only three different radicles.

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  • Since the acid contains an asymmetric carbon atom, it can exist in three forms, a dextro-rotatory, a laevo-rotatory and an inactive form; the acid obtained in the various synthetical processes is the inactive form.

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  • The normal nitrate, Bi(N03)3.5H20, is obtained in large transparent asymmetric prisms by evaporating a solution of the metal in nitric acid.

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  • The acid sulphate, NaHSO 4, also known as bisulphate of soda, is obtained as large asymmetric prisms by crystallizing a solution of equivalent quantities of the normal sulphate and sulphuric acid above 50°.

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  • VALERIC ACID, or [[Valerianic Acid, C4h9 C02h]], an organic acid belonging to the fatty acid series, which exists in four isomeric forms, one of which contains an asymmetric carbon atom and consequently occurs in two optically active modifications and one optically inactive modification.

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  • van't Hoff and others have established, corresponds to the presence of one or more asymmetric atoms of carbon - that is, atoms directly united to elements or radicles all different from one another - and in every case there exists an isomer that rotates the plane of polarization to the same degree in the opposite direction.

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  • Scheme 2. Catalysts with multiple stereogenic centers for asymmetric alkylation.

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  • A stunningly beautiful, asymmetric crystal came from the fountain of Lourdes in France.

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  • An asymmetric onset is usual, although the features usually become bilateral.

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  • Data sets will range from entirely asymmetric ribosome images to those of icosahedral virus capsids.

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  • Of particular interest is the supporting of chiral species for asymmetric catalysis.

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  • chapter eleven, due to their importance in asymmetric cryptography.

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  • convoluteould ONLY be used when one is convoluting an expanded map (i.e. not the asymmetric unit ).

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  • In the asymmetric cryptography each person has two keys generated with special software at the same time.

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  • A Bessel formula is applied to interpolate the energy levels of the restricted asymmetric rotor.

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  • The Sharpless asymmetric epoxidation has been known for 20 years and produces epoxides from allylic alcohols with high degrees of stereocontrol.

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  • A series of blue stars adorned the asymmetric hemline.

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  • modulated by a temporally asymmetric function.

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  • monomers in the asymmetric unit with 332 amino acid residues each.

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  • From the 1740s onwards the informal asymmetric style of French rococo was translated into flock.

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  • Laser 3000 Association website RS 400 A 4.5 meter high performance boat with the excitement of the asymmetric spinnaker.

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  • An attempt has been made to select an asymmetric unit using a rectangular subregion of the section.

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  • Absolute asymmetric synthesis under physical fields: facts and fictions.

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  • T and L are symmetric tensors, while S is in general asymmetric.

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  • Some cases, however, may be indistinguishable from Parkinson's disease, with an asymmetric onset and a resting tremor.

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  • Some have begun to map such processes as they swept through mass mediated populations of the age of asymmetric warfare.

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  • Lang, " Versuch einer Erklarung der Asymmetric der Gastropoder," Vierteljahrsschr.

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  • The proof of this statement rests on the fact that if the hydrogen atoms were not co-planar, then substitution derivatives (the substituting groups not containing asymmetric carbon atoms) should exist in enantiomorphic forms, differing in crystal form and in their action on polarized light; such optical antipodes have, however, not yet been separated.

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  • If, however, two compounds only differ with regard to the spatial arrangement of the atoms, the physical properties may be (I) for the most part identical, differences, however, being apparent with regard to the action of the molecules on polarized light, as is the case when the configuration is due to the presence of an asymmetric atom (optical isomerism); or (2) both chemical and physical properties may be different when the configuration is determined by the disposition of the atoms or groups attached to a pair of doubly-linked atoms, or to two members of a ring system (geometrical isomerism or allo-isomerism).

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  • Of the tri-derivatives the symmetrical compounds boil at the lowest temperature, the asymmetric next, and the vicinal at the highest.

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  • The aldehyde group reacts with hydrocyanic acid to produce two stereo-isomeric cyanhydrins; this isomerism is due to the conversion of an originally non-asymmetric carbon atom into an asymmetric one.

    0
    0
  • Lowry and Armstrong represent these compounds by the following spatial formulae which postulate a y-oxidic structure, and 5 asymmetric carbon atoms, i.e.

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  • Since the molecule contains an asymmetric carbon atom, the acid exists in three forms, one being an inactive "racemic" mixture, and the other two being optically active forms. The inactive variety is known as paramandelic acid.

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  • It is a colourless solid which melts at 92° C. For silicon derivatives of the amines see Michaelis, Ber., 1896, 29, p. 710; on asymmetric silicon and the resolution of dl-benzyl-ethyl-propyl-silicol see F.

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  • It is seen that aldoses and ketoses which differ stereochemically in only the two final carbon atoms must yield the same osazone; and since d-mannose, d-glucose, and d-fructose do form the same osazone (d-glucosazone) differences either structural or stereochemical must be placed in the two final carbon atoms.3 It may here be noticed that in the sugars there are asymmetric carbon atoms, and consequently optical isomers are to be expected.

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  • Although containing an asymmetric carbon atom it has not been resolved.

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  • The plane projection of molecular structures which differ stereochemically is discussed under Stereoisomerism; in this place it suffices to say that, since the terminal groups of the hexaldose molecule are different and four asymmetric carbon atoms are present, sixteen hexaldoses are possible; and for the hexahydric alcohols which they yield on reduction, and the tetrahydric dicarboxylic acids which they give on oxidation, only ten forms are possible.

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  • 4,as mannose is produced by reversing the sign of the asymmetric system adjoining the terminal COH group.

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  • If the asymmetric system adjoining the COH group, which is that introduced in synthesizing the hexose from the pentose, be eliminated, the formulae at disposal for the two pentoses are CH 2 (OH) - - - COH CH 2 (OH)+-- COH.

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  • When such compounds are converted into corresponding dibasic acids, CO 2 H.[CH(OH)) 3.00 2 H, the number of asymmetric carbon atoms becomes reduced from three to two, as the central carbon atom is then no longer associated with four, but with only three different radicles.

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  • This formula, which necessitates the presence of two asymmetric carbon atoms in an alkyl tetrahydroberberine, has been accepted by M.

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  • Since the acid contains an asymmetric carbon atom, it can exist in three forms, a dextro-rotatory, a laevo-rotatory and an inactive form; the acid obtained in the various synthetical processes is the inactive form.

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  • The normal nitrate, Bi(N03)3.5H20, is obtained in large transparent asymmetric prisms by evaporating a solution of the metal in nitric acid.

    0
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  • The acid sulphate, NaHSO 4, also known as bisulphate of soda, is obtained as large asymmetric prisms by crystallizing a solution of equivalent quantities of the normal sulphate and sulphuric acid above 50°.

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  • VALERIC ACID, or [[Valerianic Acid, C4h9 C02h]], an organic acid belonging to the fatty acid series, which exists in four isomeric forms, one of which contains an asymmetric carbon atom and consequently occurs in two optically active modifications and one optically inactive modification.

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  • The trans compound is perfectly asymmetric and so its mirror image (I) should exist, and, as all the trans compounds synthetically prepared are optically inactive, they are presumably racemic compounds (see 0.

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  • van't Hoff and others have established, corresponds to the presence of one or more asymmetric atoms of carbon - that is, atoms directly united to elements or radicles all different from one another - and in every case there exists an isomer that rotates the plane of polarization to the same degree in the opposite direction.

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  • Absence of rotary power when asymmetric carbon atoms are present, may be caused by an internal compensation within the molecule as with the inactive tartaric acid (mesotartaric acid), or may be due to the fact that the compound is an equimolecular mixture of leftand right-hand varieties, this being the case with racemic acid that was broken by Louis Pasteur into laevoand dextro-tartaric acid (see Stereo-Isomerism).

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  • The Lebanese War was not, therefore, an asymmetric war confronting a well-equipped modern army with a ragtag band of guerillas.

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  • Some cases, however, may be indistinguishable from Parkinson 's disease, with an asymmetric onset and a resting tremor.

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  • From the 1740s onwards the informal asymmetric style of French rococo was translated into flock.

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  • We show, however, that asymmetric states can be moving solutions of the partial differential equation.

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  • Laser 3000 Association website RS 400 A 4.5 meter high performance boat with the excitement of the asymmetric spinnaker.

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  • An attempt has been made to select an asymmetric unit using a rectangular subregion of the section.

    0
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  • Absolute asymmetric synthesis under physical fields: facts and fictions.

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  • T and L are symmetric tensors, while S is in general asymmetric.

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  • Some have begun to map such processes as they swept through mass mediated populations of the age of asymmetric warfare.

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  • This black lace evening dress by Lucia has a glamorous vintage style with asymmetric draping, an asymmetric flounce hemline and a lovely hand beaded design.

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  • There is also the Harmala, an asymmetric jersey maxi dress with boning at the bust.

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  • Asymmetric or handkerchief hems slim your lower half.

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  • The affected muscles may be on both sides of the body (symmetric paralysis) but are often on unbalanced parts of the body (asymmetric paralysis).

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  • Fever and asymmetric flaccid paralysis without sensory loss in a child or young adult almost always indicate poliomyelitis.

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  • This same preference for one side of the body may show up as asymmetric crawling or, later on, favoring one leg while climbing stairs.

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  • Growth inhibition during stage two and three causes a decrease of cell size and fetal weight with less effect on total cell number and fetal length and head circumference, causing asymmetric IUGR.

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  • Ultrasound is used to evaluate the growth of the baby and the ratio of the head circumference (HC) to the abdominal circumference (AC) is a good predictor of asymmetric IUGR.

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  • Given their uneven cuts, it may seem odd that something as "imperfect" as an asymmetric garment could ever be deemed trendy.

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  • Of course, exposing more skin than ever before is nothing new, but the asymmetric trend offers a classier and more elegant way to do so.

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  • Asymmetric garments include tops, skirts and dresses, all of which feature necklines or hems that are deftly cut at varying degrees.

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  • Note that asymmetric hems don't necessarily have to slant diagonally.

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  • Clearly, you don't have to be incredibly brazen to pull off this look, given that there are so many asymmetric hem styles available for petite women.

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  • Jill. The company's Pure Jill Asymmetric Dress is cut in an effortless A-line style and features a slightly asymmetric hem.

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  • Most small businesses use asymmetric DSL (ADSL).

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  • The proof of this statement rests on the fact that if the hydrogen atoms were not co-planar, then substitution derivatives (the substituting groups not containing asymmetric carbon atoms) should exist in enantiomorphic forms, differing in crystal form and in their action on polarized light; such optical antipodes have, however, not yet been separated.

    0
    1
  • It is seen that aldoses and ketoses which differ stereochemically in only the two final carbon atoms must yield the same osazone; and since d-mannose, d-glucose, and d-fructose do form the same osazone (d-glucosazone) differences either structural or stereochemical must be placed in the two final carbon atoms.3 It may here be noticed that in the sugars there are asymmetric carbon atoms, and consequently optical isomers are to be expected.

    0
    1
  • The plane projection of molecular structures which differ stereochemically is discussed under Stereoisomerism; in this place it suffices to say that, since the terminal groups of the hexaldose molecule are different and four asymmetric carbon atoms are present, sixteen hexaldoses are possible; and for the hexahydric alcohols which they yield on reduction, and the tetrahydric dicarboxylic acids which they give on oxidation, only ten forms are possible.

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  • This formula, which necessitates the presence of two asymmetric carbon atoms in an alkyl tetrahydroberberine, has been accepted by M.

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