Egon Willighagen wrote:

>Bob,
>
>somewhere in Jmol there is code to detect bond orders, partly using
>bond distances. The values for that are originating from what source,
>but do not know which one. Peter Murray-Rust's group has been setting
>up CrystalEye, which comes with 'normal' bond lengths... For example
>[1]. I already asked PMR on splitting things up for C-C vs C=C vs C#C
>etc.
>
>  
>
If that was ever there, it isn't now. Jmol doesn't do bond orders based 
on distance. Unless you are thinking about how we determine single bonds 
when none are given in the file.

>Maybe time to have Jmol switch to this open data?
>  
>
It might be useful, but does it really work?

>Egon
>
>1.http://wwmm.ch.cam.ac.uk/crystaleye/bondlengths/C-C-after-protocol.svg
>
>  
>


-- 
Robert M. Hanson
Professor of Chemistry
St. Olaf College
Northfield, MN
http://www.stolaf.edu/people/hansonr


If nature does not answer first what we want,
it is better to take what answer we get. 

-- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900



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