Atomic and Molecular Data on Internet
Résumé
Getting reliable atomic and molecular data for applications is a major challenge. In some instances, data can be obtained using analytical functions as proposed earlier. There are also some atomic and molecular codes available through the Internet, which can generate data online. However, the major trend currently is to download the information directly through the Internet. Web-based atomic and molecular databases have the advantage, when available, to readily provide reliable original data and possibly evaluated and/or recommended data. In this chapter, the current state of atomic and molecular and online calculation tools in early 2011 is described, with special focus on databases with a convenient user web-interface, as well as information distributed through data centrse.