Lưu ý: Bản dịch của mục này hiện đang được kiểm tra chất lượng, vì vậy một số nội dung tạm thời chỉ hiển thị bằng tiếng Anh.
Mục từ này chưa được dịch sang ngôn ngữ của bạn, vì vậy nội dung gốc được hiển thị bên dưới.
polycyclic
This term is used exclusively within the fields of organic chemistry and materials science to describe molecular architectures. It specifies a structural arrangement where multiple rings of atoms are fused or linked together, creating a complex, rigid framework.
Because it is a technical descriptor, it is almost always paired with specific chemical classes, most notably in the term "polycyclic aromatic hydrocarbons" (PAHs). It is not used in general conversation or non-scientific contexts to describe shapes or cycles.
Ý nghĩa
Ví dụ
The researcher analyzed the polycyclic aromatic hydrocarbons found in the soil sample.
Is this molecule polycyclic or does it only have a single ring structure?
Many steroids are based on a polycyclic carbon skeleton.
I need to determine if the compound is polycyclic before I start the synthesis.
The combustion of organic matter often produces polycyclic compounds.
These polycyclic structures are notoriously difficult to synthesize in a lab.
These polycyclic structures are notoriously difficult to synthesize in a lab.
The toxicity of certain polycyclic hydrocarbons is a major environmental concern.
Look at this diagram; the polycyclic nature of the molecule increases its rigidity.