Spartan includes access to a number of highly useful molecular databases, including: The Spartan Molecular Database, Spartan Reaction Database, Cambridge Structural Database* and Protein Data Bank**.

*CSD must be licensed separately. **PDB access requires internet connectivity.

  Databases:  
     
  SMD Access and retrieve/replace constructed or imported structures from a library of 150,000* molecules, pre-calculated with up to 3 quantum theory models: HF/3-21G, HF/6-31G*, and HF/6-311+G** models. Retrieved data includes: the name, equilibrium geometry, gas-phase energy, estimated (aqueous) solvation energy, HOMO and LUMO energies, dipole moments, electrostatic-fit atomic charges, surface area, polar surface area, volume, weight, symmetry, and spectra data.

* Spartan'08 includes a subset of >10,000 molecules. The full SMD is available for purchase. Customers with Maintenance receive the full SMD at no additional charge.
     
  SRD Access to exact and substructure searching of the Spartan Reaction Database of more than 1500 reaction types for providing initial structure guesses for transition state geometry calculations.
     
  CSD Accesses the Cambridge Structural Database (CSD)* of over 440,000 experimental X-ray crystal structures for organic and organometallic molecules, together with their literature references. Spartan optionally adds hydrogens and refines hydrogen positions.

*CSD may be licensed from the Cambridge Crystallographic Data Centre or one of its distributors..
     
  PDB Spartan can retrieve (based on PDB ID) entries from RCSB PDB (provided your computer has current internet connectivity). The Protein Data Bank includes more than 50,000 x-ray crystal and NMR structures of proteins and nucleic acids. Band ligands may be extracted.