This article is the sequel of a previous survey where we presented the math
ematical results rigorously known on the models used in quantum chemistry t
o simulate an isolated molecular system. The emphasis here is on the models
that take into account the environment of the molecule, namely, the models
of the condensed phase and the models of interaction with electromagnetic
fields. Some related issues are also dealt with. A bibliography of more tha
n 150 references are provided. (C) 1999 John Wiley & Sons, Inc.