Hi there, I am trying to generate an inorganic crystal structure (using CHIME via an XYZ file format) where the structure involves a fair degree of H-bonding which I want to illustrate (by toggling on and off). However when I choose the H-bonding option (using the mouse control), the H-bonding is not indicated. Does anyone have any idea what I might be doing wrong ? For example do I have to specify in the dataset the pairs of atoms that are involved in H-bonding ? My typical O-H H-bond distance is 1.7-1.8 Angstroms. Are there limits which H-bonding is only shown when using CHIME ? Thanks Mike Cole Chemistry Department Manchester Metropolitan University UK chemweb: A list for Chemical Applications of the Internet. Archived as: http://www.lists.ic.ac.uk/hypermail/chemweb/ To unsubscribe, send to majordomo@ic.ac.uk the following message; unsubscribe chemweb List coordinator, Henry Rzepa (rzepa@ic.ac.uk)