On 10/5/10 10:50 AM, Craig A. James wrote:
> Here's another problem case.  When I came in this morning, the babel process 
> that was trying to canonicalize this was using 26GB of memory! (I should set 
> some process limits!)
>
> http://www.emolecules.com/image?db=549&id=716941&width=500&height=500
>
> C12[Pr]3456789%10%11%12%13(C1C3C%13C24)(C1C9C%10C7C%121)C1C5C%11C8C61

On a practical note ... there ought to be some rule that if an atom is in more 
than six or eight separate ring systems, it's bogus.  This [Pt] atom is in 
eighteen separate 3-cycles!  I guess metals are represented this way 
frequently, but it's really a nuisance when you're trying to write algorithms 
like SSSR, LSSR and aromaticity detection.

Craig

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