Re: [ccp4bb] ideal bond length and bong angel

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From: Eleanor Dodson ccp4 {- at -} YSBL {- dot -} YORK {- dot -} AC {- dot -} UK
Date: 2008-01-09

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Subject: Re: ideal bond length and bong angel
From: Stuart McNicholas mcnicholas {- at -} YSBL {- dot -} YORK {- dot -} AC {- dot -} UK
Date: 2008-01-09

Subject: Re: ideal bond length and bong angel
From: Eleanor Dodson ccp4 {- at -} YSBL {- dot -} YORK {- dot -} AC {- dot -} UK
Date: 2008-01-09

Bong angels are probably ideal already!
There is really no such animal as an ideal bondlength or angle - they
depend to some extent on the atomic environment.

There are papers by Engh and Huber who looked at small molecule highly
refined structures to get AVERAGE bond lengths and standard deviations -
and their targets are the basis for most MX refibnement targets.
And there are many other publications trying to extract predictions from
quantum chemistry.
Eleanor

yang li wrote:
> Dear All,
> I've wonder for a simple problem for a long time, that is: What is the
> ideal bond length and angel?
> Every lecture or book says this is a criteria from small organic molecules,
> but I still donnot know
> exactly. Like is bond length point to the peptide bond length? Or many other
> bonds?
> Does anyone has a simple and graphic explanation for them?
>
> Thanks in advance!
>
>

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CCP4bb <-- 2008 <-- January 2008 <-- 09 January 2008

Previous message:
Subject: Re: How to refine large moleculars?
From: Eleanor Dodson ccp4 {- at -} YSBL {- dot -} YORK {- dot -} AC {- dot -} UK
Date: 2008-01-09

Next message:
Subject: Re: ideal bond length and bong angel
From: Stuart McNicholas mcnicholas {- at -} YSBL {- dot -} YORK {- dot -} AC {- dot -} UK
Date: 2008-01-09