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isomeric    
a. 同质异构的

同质异构的

isomeric
adj 1: of or relating to or exhibiting isomerism

isomeric \i`so*mer"ic\ ([imac]`s[-o]*m[e^]r"[i^]k), a. [Iso-
Gr. me`ros part: cf. F. isom['e]rique.] (Chem.)
Having the same chemical composition and molecular weight;
having the same number of atoms of each kind in the molecule;
-- said of chemical compounds with known chemical
composition. This property used to be called {metameric} to
distinguish it from other forms of isomerism.
[PJC]

Note: Formerly the term isomeric applied also to comopounds
having the same percentage chemical composition, even
if the number of atoms in a molecule differed. In the
1913 dictionary isomeric was defined as:
"Having the same percentage composition; -- said of two
or more different substances which contain the same
ingredients in the same proportions by weight, often
used with with. Specif.:
(a) Polymeric; i. e., having the same elements united in the
same proportion by weight, but with different molecular
weights; as, acetylene and benzine are isomeric
(polymeric) with each other in this sense. See
{Polymeric}.
(b) Metameric; i. e., having the same elements united in the
same proportions by weight, and with the same molecular
weight, but with a different structure or arrangement of
the ultimate parts; as, ethyl alcohol and methyl ether
are isomeric (metameric) with each other in this sense.
See {Metameric}."
[1913 Webster]


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  • Isomer - Wikipedia
    In chemistry, isomers are molecules or polyatomic ions with identical molecular formula – that is, the same number of atoms of each element – but distinct arrangements of atoms in space [1] Isomerism refers to the existence or possibility of isomers Isomers do not necessarily share similar chemical or physical properties
  • Isomerism | Definition, Types, Examples | Britannica
    isomerism, the existence of molecules that have the same numbers of the same kinds of atoms (and hence the same formula) but differ in chemical and physical properties The roots of the word isomer are Greek— isos plus meros, or “equal parts ”
  • ISOMERIC Definition Meaning - Merriam-Webster
    The meaning of ISOMERIC is of, relating to, or exhibiting isomerism
  • 5. 1: Isomers - Chemistry LibreTexts
    Determine the isomeric relationship between a pair of molecules Identify the chiral centers in a molecule Describe different types of isomers
  • What is Isomerism? - BYJUS
    Isomerism is the phenomenon in which more than one compounds have the same chemical formula but different chemical structures Chemical compounds that have identical chemical formulae but differ in properties and the arrangement of atoms in the molecule are called isomers Therefore, the compounds that exhibit isomerism are known as isomers
  • Isomeric - definition of isomeric by The Free Dictionary
    Define isomeric isomeric synonyms, isomeric pronunciation, isomeric translation, English dictionary definition of isomeric n 1 Chemistry Any of two or more substances that have the same molecular formula but differ in the way their atoms are connected to each other, in the
  • Isomerism: Definition, Types, Examples - Science Info
    Isomerism refers to the property of two or more compounds that have the same molecular formula but differing physical and chemical properties Isomerism is classified into two types: structural isomerism (constitutional isomerism) and stereoisomerism These are further subdivided into many subtypes
  • ISOMERIC definition and meaning | Collins English Dictionary
    ISOMERIC definition: of, pertaining to, or displaying isomerism | Meaning, pronunciation, translations and examples
  • Isomer Definition and Examples in Chemistry - ThoughtCo
    An isomer is a chemical species with the same number and types of atoms as another chemical species but with distinct properties because the atoms are arranged into different chemical structures When atoms can assume different configurations, the phenomenon is termed isomerism
  • ISOMERIC Definition Meaning | Dictionary. com
    Isomeric definition: of, relating to, or displaying isomerism See examples of ISOMERIC used in a sentence
  • Types of Isomers: Constitutional, Stereoisomers, Enantiomers, and . . .
    Types of Isomers: Constitutional Isomers, Stereoisomers, Enantiomers, And Diastereomers How do we tell if molecules are “related”? And once we know that they are, how do we figure out what kind of isomer they are? Are they: Or are they the same? : – ) Let’s walk through some of these questions below! Table of Contents “How Are We Related, Again?”
  • Isomeric Forms Of Molecules | EBSCO Research Starters
    The double bond, two pairs of electrons shared by adjacent carbon atoms, is formed, in a formal sense, by the loss of two hydrogen atoms Such an arrangement is isomeric, with a single shared pair between nonadjacent carbon atoms, that is, with a cyclic, or ring, compound
  • Isomeric | definition of isomeric by Medical . . . - Medical Dictionary
    Meaning of isomeric medical term What does isomeric mean?
  • Hierarchical sub-stoichiometric isomeric covalent organic frameworks . . .
    Covalent organic frameworks (COFs) are remarkable porous crystalline materials that have wide usage in various fields However, the topological isomers of COFs are uncommon, and it is quite infrequent to synthesize COFs with absolutely diverse hierarchical topologies from the same monomers Herein, a pair of hierar
  • 1. 5: Isomerism - Chemistry LibreTexts
    Determine the isomeric relationship between a pair of molecules Identify the chiral centers in a molecule Describe different types of isomers





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