Re: Neutron diffraction with boron aka Genie in the bottle

2001-03-31 Thread N. Dragoe
Regards N http://www.chem.t.u-tokyo.ac.jp/appchem/labs/kitazawa/dragoe/ - Original Message - From: E. K. Akdogan <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, 29 March 2001 1:58 AM Subject: RE: Neutron diffraction with boron aka Genie in the bottle

RE: Neutron diffraction with boron

2001-03-29 Thread E. K. Akdogan
, NJ 08854-8065 Phone: (732)-445 5614 Fax: (732)-445 5577 E-mail : [EMAIL PROTECTED] -Original Message- From: Peter Y. Zavalij [mailto:[EMAIL PROTECTED]] Sent: Thursday, March 29, 2001 4:41 PM To: [EMAIL PROTECTED] Subject: RE: Neutron diffraction with boron "Crystal struc

RE: Neutron diffraction with boron

2001-03-29 Thread Peter Y. Zavalij
ursday, March 29, 2001 4:29 PM To: [EMAIL PROTECTED] Subject: RE: Neutron diffraction with boron Importance: High With regard to MgB2 and atomic coordinates 1) Armel's rightit's routine work at this day & age. 2) I also agree that atomic coordinates is a prerequisite for dee

RE: Neutron diffraction with boron

2001-03-29 Thread E. K. Akdogan
hone: (732)-445 5614 Fax: (732)-445 5577 E-mail : [EMAIL PROTECTED] -Original Message- From: Armel Le Bail [mailto:[EMAIL PROTECTED]] Sent: Thursday, March 29, 2001 6:26 AM To: [EMAIL PROTECTED] Subject: Re: Neutron diffraction with boron >Knowing what the >structure does o

Re: Neutron diffraction with boron

2001-03-29 Thread Armel Le Bail
>Dang... I'm glad that we didn't have to wait for excellent science to >theoretically predict penicillin for us. Absolutely ! The whole humanity is lucky that things to be found, whatever, are discovered times to times. Fire, the wheel, who remember the inventors ? But our era is lacking of m

Re: Neutron diffraction with boron

2001-03-29 Thread Eric Peterson
Dang... I'm glad that we didn't have to wait for excellent science to theoretically predict penicillin for us. At 12:51 PM 3/29/01 +1000, you wrote: > >>>Is it really >>>worth trying to belittle what should turn out to be excellent science? >> >>A serendipity case. Once more. Where is excellenc

Re: Neutron diffraction with boron

2001-03-29 Thread Lachlan Cranswick
>>Is it really >>worth trying to belittle what should turn out to be excellent science? > >A serendipity case. Once more. Where is excellency exactlly, >according to you ? I repeat that excellency would be to produce >a theory which would have allowed to predict the MgB2 >superconductor properti

Re: Neutron diffraction with boron

2001-03-29 Thread Armel Le Bail
>Is it really >worth trying to belittle what should turn out to be excellent science? A serendipity case. Once more. Where is excellency exactlly, according to you ? I repeat that excellency would be to produce a theory which would have allowed to predict the MgB2 superconductor properties. The

Re: Neutron diffraction with boron

2001-03-29 Thread Jonathan WRIGHT
At 04:48 PM 3/29/01 +0200, you wrote: > >>You really think that MgB2 will give more ? Maybe... just routine to do so. > >Armel, it was you who asked if boron was possible with neutrons, and when >you are told that it is, you say that anyway it is borin' (excuse the pun :-) I hadn't realised ther

Re: Neutron diffraction with boron

2001-03-29 Thread Armel Le Bail
>If you know how to guarantee high citation levels, go to it :-) Alan, you already occupy the place of leader of the Group of Crystallography at ILL, the best neutron reactor for research in the world ;-). Knowing how cannot ensure to succeed... There are a few other parameters to refine. Armel

Re: Neutron diffraction with boron

2001-03-29 Thread Alan Hewat
>You really think that MgB2 will give more ? Maybe... just routine to do so. Armel, it was you who asked if boron was possible with neutrons, and when you are told that it is, you say that anyway it is borin' (excuse the pun :-) >Well, let me predict the future of the coming paper : high citat

Re: Neutron diffraction with boron

2001-03-29 Thread Armel Le Bail
>Knowing what the >structure does or doesn't do around the transition would be a prerequisite >to a deeper understanding of the phenomena. We still wait for a deeper understanding of the phenomena, since 1986, right ? And this, after thousands of characterizations. You really think that MgB2 wi

Re: Neutron diffraction with boron

2001-03-29 Thread Jonathan WRIGHT
Armel wrote: >>And yes, the measurements have been done. >I would not call Science giving the MgB2 atomic >coordinates, already known. Was this meant to be serious? Checking for any subtle structural changes around Tc would be (has been?) a worthwhile investigation. Something easily worthy of t

Re: Neutron diffraction with boron

2001-03-29 Thread Armel Le Bail
>And yes, the measurements have been done. Well, let me predict the future of the coming paper : high citation level guaranteed, even if there is nothing more than a refinement of the known structure. I would call Science : a new theory explaining, and allowing to predict that a defined compoun

RE: Neutron diffraction with boron aka Genie in the bottle

2001-03-28 Thread E. K. Akdogan
EMAIL PROTECTED] Subject: Neutron diffraction with boron Armel Le Bail wrote: > Have new neutron > powder patterns been done on the magnesium diboride superconductor > yet (or derivatives, if any), or B absorption will be a too big > problem ? Yes, neutron absorption by boron is a

Neutron diffraction with boron

2001-03-28 Thread Brian H. Toby
Armel Le Bail wrote: > Have new neutron > powder patterns been done on the magnesium diboride superconductor > yet (or derivatives, if any), or B absorption will be a too big > problem ? Yes, neutron absorption by boron is a potential problem, however use of 11B in place of natural abundance bor