containing no quaternary carbon atom

См. также в других словарях:

• quaternary — [kwät′ər ner΄ē, kwə tʉr′nə rē] adj. [L quaternarius < quaterni, four together, four each < quater, four times < base of quattuor,FOUR] 1. consisting of four; in sets of four 2. [usually Q ] designating or of the second and current… …   English World dictionary

• Quaternary (disambiguation) — Quaternary (from Latin quaternarius ) is an adjective meaning consisting of or containing four each , but sometimes (as in geology) taken to mean fourth or fourth hand , where it is used in place of quartary to continue the sequence Primary,… …   Wikipedia

• quaternary ammonium compound — n any of numerous strong bases and their salts derived from ammonium by replacement of the hydrogen atoms with organic radicals and important esp. as surface active agents, disinfectants, and drugs called also quat, quaternary * * * an organic… …   Medical dictionary

• protein — proteinaceous /proh tee nay sheuhs, tee i nay /, proteinic, proteinous, adj. /proh teen, tee in/, n. 1. Biochem. any of numerous, highly varied organic molecules constituting a large portion of the mass of every life form and necessary in the… …   Universalium

• Crystal structure of boron-rich metal borides — Two single crystals of YB66 (1 cm diameter) grown by floating zone technique using (100) oriented seeds. In the top crystal, the seed (left from the black line) has same diameter as the crystal. In the bottom crystal (sliced), the seed is much… …   Wikipedia

• amine — aminic /euh mee nik, euh min ik/, adj. aminity /euh min i tee/, n. /euh meen , am in/, n. Chem. any of a class of compounds derived from ammonia by replacement of one or more hydrogen atoms with organic groups. [1860 65; AM(MONIUM) + INE2] * * *… …   Universalium

• 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

• Alkane — Not to be confused with Alkene or Alkyne. Chemical structure of methane, the simplest alkane Alkanes (also known as paraffins or saturated hydrocarbons) are chemical compounds that consist only of hydrogen and carbon atoms and are bonded… …   Wikipedia

• Biochemistry — For the journal, see Biochemistry (journal). Biological Chemistry redirects here. For the journal formerly named Biological Chemistry Hoppe Seyler, see Biological Chemistry (journal). Biochemistry, sometimes called biological chemistry, is the… …   Wikipedia

• Functional group — For other uses, see Functional group (disambiguation) and Moiety (disambiguation). Benzyl acetate has an ester functional group (in red), an acetyl moiety (circled with green) and a benzyloxy moiety (circled with orange). Other divisions can be… …   Wikipedia

• Difluorocarbene — is the chemical compound with formula CF2. It has a short half life, 0.5 and 20 msec, in solution and in the gas phase, respectively.[1] Although highly reactive, difluorocarbene is an intermediate in the production of tetrafluoroethylene, which… …   Wikipedia