Example 1 Combined Structure and Fact Retrieval

The aim of the first example is to look for polychlorinated biphenyls (PCB) for which C-NMR spectra, measured in deuterochloroform, as well as the partition coefficients between 1-octanol and water arc known. Since it is not reliable to per- 

Liquid.Vapoiji Syden IMLSI ILv Sl Liquid/Liquid Syrtem IMCSI LLSM  

Mechanical Phy icd Pfocertie IMCjIIMECMI T lari poit Phenomena MCS TRAM  

An alternative to retrieval by means of an atom list is a structure search performed by means of a user-defined generic group which contains only chlorine 

It Is cmphasi cd that both versions of the generic structure query may include the parent compound and monochlorinated derivatives. 

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