Links

Computational tools 

• Quantum Espresso

• Wannier90

• NWChem

• Yambo

Visualization 

• CrystalMaker

• XcrysDen

• Avogadro

• Molden

• Vesta

• Molport

Crystals and symmetries 

• Crystal structures

• Bilbao Crystallographic Server

• American Mineralogist Crystal Structure Database

• Point group symmetry character tables

• FreeScience

Chemistry 

• WebQC.org Chemical portal

• WebElements Periodic Table

• ChemSpider

• NIST Chemistry WebBook

• Molport