Definition of phenanthroline in English:

phenanthroline

noun fɛˈnanθrəliːnfɪˈnanθrəliːn

Chemistry

Each of a number of isomeric, crystalline, heteroaromatic compounds having the formula C₁₂H₈N₂, whose molecules have a tricyclic phenanthrene ring system in which one CH group in each of the two outer rings is replaced by a nitrogen atom; especially (in full "1,10-phenanthroline"), the ortho isomer, which is used as an indicator for iron, with which it forms a red-orange complex.

Origin

Late 19th century; earliest use found in Journal of the Chemical Society. From phenanthr- + -oline, after German Phenanthrolin.

Definition of phenanthroline in US English:

phenanthroline

noun

Chemistry

Each of a number of isomeric, crystalline, heteroaromatic compounds having the formula C₁₂H₈N₂, whose molecules have a tricyclic phenanthrene ring system in which one CH group in each of the two outer rings is replaced by a nitrogen atom; especially (in full "1,10-phenanthroline"), the ortho isomer, which is used as an indicator for iron, with which it forms a red-orange complex.

Origin

Late 19th century; earliest use found in Journal of the Chemical Society. From phenanthr- + -oline, after German Phenanthrolin.

单词	phenanthroline
释义	Definition of phenanthroline in English: phenanthroline noun fɛˈnanθrəliːnfɪˈnanθrəliːn Chemistry Each of a number of isomeric, crystalline, heteroaromatic compounds having the formula C₁₂H₈N₂, whose molecules have a tricyclic phenanthrene ring system in which one CH group in each of the two outer rings is replaced by a nitrogen atom; especially (in full "1,10-phenanthroline"), the ortho isomer, which is used as an indicator for iron, with which it forms a red-orange complex. Origin Late 19th century; earliest use found in Journal of the Chemical Society. From phenanthr- + -oline, after German Phenanthrolin. Definition of phenanthroline in US English: phenanthroline noun Chemistry Each of a number of isomeric, crystalline, heteroaromatic compounds having the formula C₁₂H₈N₂, whose molecules have a tricyclic phenanthrene ring system in which one CH group in each of the two outer rings is replaced by a nitrogen atom; especially (in full "1,10-phenanthroline"), the ortho isomer, which is used as an indicator for iron, with which it forms a red-orange complex. Origin Late 19th century; earliest use found in Journal of the Chemical Society. From phenanthr- + -oline, after German Phenanthrolin.
随便看	airport taxes air position airpot air potato air power air pressure air prop air propeller air pump air punch air-punching airquake air quality air quotes air rage air raid air raid precautions air raids air-raid shelter air raid warden air raid warning air rank air receiver air release air-rending