PubChem
PubChem is the world's largest collection of freely accessible chemical information. Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and …
Chemical structure - Wikipedia
A chemical structure of a molecule is a spatial arrangement of its atoms and their chemical bonds. Its determination includes a chemist 's specifying the molecular geometry and, when feasible …
Chemical Sketch Tool - RCSB PDB
Use the Chemical Sketch tool to draw or edit a molecule. The resulting SMILES or InChI string may be used to search for matching molecules in the PDB Chemical Component Dictionary. …
MolView
Click one of the subjects below to learn more. You can also watch some videos on YouTube to get started. Selection tools: all these tool can be used to drag the current selection or …
Molecule | Definition, Examples, Structures, & Facts | Britannica
Molecule, a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that …
4.4: The Shapes of Molecules - Chemistry LibreTexts
6 天之前 · The structure that includes only the placement of the atoms in the molecule is called the molecular structure (or molecular shape). The electron group geometries will be the same …
Home | 3DChem.com - Chemistry, Structures & 3D Molecules
See the structures of small molecules, medical drugs, biological super-structures - enzymes, proteins, DNA, & virus - and the material world nano structures, all with colourful illustrations …
Molecular Structure and Function - Opportunities in Biology
The primary structure is the covalent chemical structure, that is, a specification of the identity of all the atoms and the bonds that connect them. The major molecules with which we …
Geometry of Molecules - Chemistry LibreTexts
2023年1月30日 · Molecular geometry, also known as the molecular structure, is the three-dimensional structure or arrangement of atoms in a molecule. Understanding the molecular …
To understand why atoms form molecules. interpret the properties of elements that are important for life from the periodic table. understand why and how atoms form bonds. draw Lewis dot …