From this page you can search the Server databases for information regarding compounds, NMR data etc.
To search for an item of data first select the catagory you wish to search on, for example molecular formula (this can include common aliases such as Me, Et, Ph eg PPh3, click for a list of pre-defined groups), name (or part thereof), NMR data (currently 19F and 31P) or IR vibrational frequency from the pull-down menu. Next enter the value to search for. For numeric searches you may, if you wish, alter the tolerence value. Thus, searching for a value of 120 when the tolerance is set to 5 will return any values found between 115 and 125. To execute the search press the Submit button.