Re: [ccp4bb] Friedel vs Bijvoet

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CCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999

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Subject: Re: Friedel vs Bijvoet
From: Dale Tronrud det102 {- at -} UOXRAY {- dot -} UOREGON {- dot -} EDU
Date: 2008-06-27

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Subject: Re: Friedel vs Bijvoet
From: Bernhard Rupp bernhardrupp {- at -} SBCGLOBAL {- dot -} NET
Date: 2008-06-27

I quote from these pages:

"Bijvoet pairs are Bragg reflections which are true symmetry
equivalents to a Friedel pair. These true symmetry equivalents
have *equal amplitudes, even in the presence of anomalous scattering*."

Sounds more like centric or perhaps simply symmetry related to me.

A few lines below:

" A Bijvoet difference refers to the difference in measured
amplitude for a Bijvoet pair"

I don't think you can have it both ways ??

BR

CCP4bb navigation

CCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999

Previous message:
Subject: Re: Friedel vs Bijvoet
From: Dale Tronrud det102 {- at -} UOXRAY {- dot -} UOREGON {- dot -} EDU
Date: 2008-06-27

Next message:
Subject: Re: helix stability
From: Miguel_Ortiz-Lombardía ibdeno {- at -} GMAIL {- dot -} COM
Date: 2008-06-27