
PubChem
Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and physical properties, biological activities, safety and toxicity information, patents, literature …
Structure search - ChemSpider
Search by Structure or Substructure. Upload a structure file or draw using a molecule editor.
MolView
You can use MolView to search through different scientific databases including compound databases, protein databases and spectral databases, and view records from these databases …
Structural formula - Wikipedia
The structural formula of a chemical compound is a graphic representation of the molecular structure (determined by structural chemistry methods), showing how the atoms are connected …
2.1: Drawing organic structures - Chemistry LibreTexts
Aug 22, 2025 · Multiple Lewis structures, representing different compounds, may have the same formula. The compounds that have the same molecular formula but different structures are …
Compound: Definition, Properties, Types, and Examples
A chemical compound is a pure substance made of two or more different elements that are chemically combined in a fixed ratio. The atoms in a compound are bonded together by strong …
Understanding the Structure of Chemical Compounds
Understanding the structure of chemical compounds is fundamental to the field of chemistry. The arrangement of atoms within these compounds can determine their properties, behavior, and …
Chemical structure - Wikipedia
In determining structures of chemical compounds, one generally aims to obtain, first and minimally, the pattern and degree of bonding between all atoms in the molecule; when …
2.4: Structures of Metals and Ionic Compounds
Both structures are favored by p-block compounds that follow the octet rule, and these compounds are usually semiconductors or insulators. The zincblende structure, Figure 2 4 10, …
Molecules and compounds overview | Atomic structure (article)
When atoms combine through chemical bonding, they form compounds—unique structures composed of two or more atoms. The basic composition of a compound can be indicated …