Thekey differencebetween enantiotropic and monotropic is that对映射是指不同的polymorphic在不同温度下稳定的状态,而单旋转是指在所有合理温度下稳定的一个多晶型物.
对映射和单颗粒的术语描述了两个不同的多态性系统。多态性是指发生几种不同形式的相同物质,其物理特性有显着差异,例如melting point, colour, hardness, density, electrical conductivity,融合热, etc. There are two different categories that we can divide the polymorphic substance into. These categories are known as monotropic systems and enantiotropic systems.
CONTENTS
1.Overview and Key Difference
2.What is Enantiotropic
3.What is Monotropic
4.Similarities Between Enantiotropic and Monotropic
5.Side by Side Comparison – Enantiotropic vs Monotropic in Tabular Form
6.概括
What is Enantiotropic
The term enantiotropic refers to a phenomenon where one polymorph is stable over one temperature range while another polymorph is stable over a different temperature range. Enantiotropic substances are polymorphic substances having two or more polymorphic states that have their stabilities at specific temperatures. In other words, one polymorphic state is stable at a certain temperature range while another polymorphic state of the same substance is stable at a different temperature range. Some examples of this type of enantiotropic substances include carbamazepine and acetazolamide.
What is Monotropic
The term monotropic refers to a phenomenon when a material exists in multiple forms, but only one it is stable at all temperatures and pressures. This term is useful in describing the polymorphism of substances.
Monotropic systems are substances where only one polymorphic state is stable at all the temperature ranges. A good example of this type of substances is metolazone.
对映射和单颗粒之间的关系是什么?
多态性是指出现几种不同形式的相同物质,其物理特性有显着差异,例如熔点,颜色,硬度,密度,密度,电导率,融合热等。我们可以将多态性物质分成。这些类别被称为单极管系统和对映射系统。因此,对映射和单型的术语是具有相反含义的术语。
What is the Difference Between Enantiotropic and Monotropic?
The terms enantiotropic and monotropic are opposite to each other. The term enantiotropic refers to a phenomenon where one polymorph is stable over one temperature range while another polymorph is stable over a different temperature range while the term monotropic refers to a phenomenon a material can exist in multiple forms, but only one of it is stable at all temperatures and pressures. The key difference between enantiotropic and monotropic is that the term enantiotropic refers to the state of having different polymorphic states that are stable at different temperatures, whereas the terms monotropic refers to the state of having only one polymorph that is stable at all the reasonable temperatures. Moreover, carbamazepine and acetazolamide are examples of enantiotropic substances whereas metolazone is an example of monotropic substances.
The following infographic summarizes the difference between enantiotropic and monotropic in tabular form.
概括– Enantiotropic vs Monotropic
Enantiotropic and monotropic are different terms used in chemistry regarding the field of polymorphism. The key difference between enantiotropic and monotropic is that the term enantiotropic refers to the state of having different polymorphic states that are stable at different temperatures, whereas the terms monotropic refers to the state of having only one polymorph that is stable at all the reasonable temperatures.
Reference:
1. “Polymorphism- Types of Polymorphism: Relation between Polymorphs&Solvates.” Byjus, 14 Aug. 2020,Available here.
Image Courtesy:
1. “Metolazone” By Tomasz Dolinowski – Own work (CC0) viaCommons Wikimedia
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