electropositive substituent


electropositive substituent
elektriškai teigiamas pakaitas statusas T sritis chemija apibrėžtis Pakaitas, kurio elektrinis neigiamumas mažesnis negu vandenilio. atitikmenys: angl. electropositive substituent rus. электроположительный заместитель

Chemijos terminų aiškinamasis žodynas – 2-asis patais. ir papild. leid. – Vilnius: Mokslo ir enciklopedijų leidybos institutas. . 2003.

Look at other dictionaries:

  • elektriškai teigiamas pakaitas — statusas T sritis chemija apibrėžtis Pakaitas, kurio elektrinis neigiamumas mažesnis negu vandenilio. atitikmenys: angl. electropositive substituent rus. электроположительный заместитель …   Chemijos terminų aiškinamasis žodynas

  • электроположительный заместитель — elektriškai teigiamas pakaitas statusas T sritis chemija apibrėžtis Pakaitas, kurio elektrinis neigiamumas mažesnis negu vandenilio. atitikmenys: angl. electropositive substituent rus. электроположительный заместитель …   Chemijos terminų aiškinamasis žodynas

  • organometallic compound — ▪ chemical compound Introduction  any member of a class of substances containing at least one metal to carbon bond in which the carbon is part of an organic group. Organometallic compounds constitute a very large group of substances that have… …   Universalium

  • Carbene — In chemistry, a carbene is a highly reactive organic molecule containing a carbon atom with six valence electrons and having the general formula: R1R2C: (two substituents and two electrons). [Organic Chemistry R.T Morrison, R.N Boyd pp 473 478]… …   Wikipedia

  • Electronegativity — This electrostatic potential map shows how the oxygen atom has a more negative charge than the hydrogen atoms. Electronegativity, symbol χ (the Greek letter chi), is a chemical property that describes the tendency of an atom or a functional group …   Wikipedia

  • Hyperconjugation — In organic chemistry, hyperconjugation is the interaction of the electrons in a sigma bond (usually C–H or C–C) with an adjacent empty (or partially filled) non bonding p orbital or antibonding π orbital or filled π orbital, to give an extended… …   Wikipedia

  • chemical compound — Introduction  any substance composed of identical molecules consisting of atoms (atom) of two or more chemical elements (chemical element).       All the matter in the universe is composed of the atoms of more than 100 different chemical elements …   Universalium

  • Polyphenol — Plant derived polyphenol, tannic acid, formed by esterification of ten equivalents of the phenylpropanoid derived gallic acid to a monosaccharide (glucose) core from primary metabolism …   Wikipedia

  • Organoborane — PropertiesThe C B bond has low polarity (the difference in electronegativity 2.55 for carbon and 2.04 for boron) and therefore alkyl boron compounds are in general stable though easily oxidized. Vinyl groups and aryl groups donate electrons and… …   Wikipedia

  • Haloketone — A haloketone in organic chemistry is a functional group consisting of a ketone group or more general a carbonyl group with a α halogen substituent. The general structure is RR C(X)C(=O)R where R is an alkyl or aryl residue and X any one of the… …   Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.