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I was reading the article (from the post title) in the guardian online over my lunch break which relates to another guardian article (The trouble with trusting complex science) and thought, one I would bring it to the forum members attention as I thought the Pugwash Pledge somewhat adhering and two what  read more »

Hello all,

Here is a message from Lukas Palatinus, the author of the Superflip program:
*****************************************************************************************************
Dear Superflip users,  read more »

for info....email contact sorted now - you can now contact us via "contact us" page on website (link via "hardware websites" - Hiltonbrooks)

Statistics: Posted by hiltonbrooks — 09 Mar 2010, 21:47

The CDS as mentioned in numerous places on the forum (for example& here) can now be searched using Olex2.  read more »

Hi all,

We are going to buy a new diffractometer this year, most probably with a dual Mo/Cu microfocus source, and I completely agree with Peter: it would be great to have some information about longevity, costs per year (gas,...) and replacement,... to know how it compares economically with sealed-tube or rotating anode sources.

Cheers

Pablo

Statistics: Posted by Zamu — 08 Mar 2010, 21:50

Hi all,

This topic has been dormant a little and I wonder whether there is anything to answer John's original question:
How long do microsources last in the field? Do any of you have such instruments from any manufacturer or vendor? If so, how often do you need to change tubes? Once a year? Every other year? Never...?

If you wish to remain anonymous, send me a private message or e-mail (pmueller@mit.edu), but I'd appreciate any information I can get, as I am in the market for such an instrument myself now.  read more »

Did you see this post viewtopic.php?f=22&t=810 effectively about the same thing?

Have you tried contacting the CCD manufacturer directly instead of the diffractometer company?
Is it something simple like a cooling issue, or perhaps a fault with the power supply for the Peltier chiller?  read more »

This may not be of direct use to the SMX members but perhaps it will be??? I leave you to decide visit the P212121.com blog tools page and find out. Why the interest? Well Sean has doubled the number of tools so that seems like reason enough to take a peak. Doesn't it?

Statistics: Posted by johnewarren — 08 Mar 2010, 09:49

After a couple of tweets from Rudi regarding joining the "directory of crystallographers" hosted by the IUCr and the DGK I thought it would be prudent to to perhaps start a thread where people could post crystallographic associations to. Each association will then be placed in the websites link in this area of the forum.

I'm also looking for added value information such as the annual fee of membership (student/grown-up) and the core benefits to membership.  read more »

Yeah it is interesting. By not having a standardised scheme and by most universities keeping their pricing to themselves it results in a sort of buyers market. If your not happy purchasing a sample from one Uni take it to another as they may be cheaper.  read more »

A very strange thing happened yesterday. I was sat in X-ray when a strange voice shouted my name. I immediately thought it was somebody after the other John, but no they wanted me. It was Nick from HiltonBrooks who were working on another machine on campus and just dropped into the lab for a quick chat and brought me a little bag of o-rings.

Yes, I know - amazing stuff!

The power of the forum!

Just so you know that HIltonBrooks email is down you should phone them or pop them a PM via the forum all good.  read more »

Interesting topic. It seems things are a bit worse in Spain. Here our university charges a fixed charge of about 125 euros per structure (more if it is done with N2) in an obsolete equipment that requires crystals of 2mm and wittimes are about 6 months. I send samples to the service of other spanish university and charges are between 100 and 300 euros (approx) for data collection,more if you want a refinement -which I do myself.  read more »

One other thing, there will be a new Olex2 release coming out this month which will hit all active repos.

Statistics: Posted by johnewarren — 01 Mar 2010, 16:41

This is also useful but only needed on first or recovery type runs of Olex2 this is has not changed between the repos.
http://fedora.debroglie.net/RPMS/12/rep ... 2-gui.html

In theory if you install Olex2 from the test-repo it will grab the GUI from the main repo and hopefully the latest CCTBX.

Statistics: Posted by johnewarren — 01 Mar 2010, 14:40

It should be ok I'll have a look - you've added the repo to your yum setup?

In the mean time:
Test Repo:
http://fedora.debroglie.net/fedora-test ... /repoview/

Main Repo:
http://fedora.debroglie.net/RPMS/12/repoview

Get the latest CCTBX & Olex2 from the test repo I've also added the GUI file which was missing (sorry).  read more »

Hello.

I have got a problem with the Fedora Repos. I am using Fedora 12 and wanted to add the repositories for it, but the website

http://fedora.debroglie.net/RPMS/12/noa ... noarch.rpm

is not available and so is the one for Fedora 11.

Is it possible to download it somewhere else or will the page be online again in some time?  read more »

Bearing in mind that Panalytical have provided all the information regarding their XRDML file format what programs out there will read them "natively" so to speak? Bear in mind it has been a long time since I did powder and my powder programs (which are running predominantly via wine) include PowderX by Cheng Dong.

Statistics: Posted by johnewarren — 26 Feb 2010, 16:51

This is the simplest polymeric structure - 1D chain, topological description is not appropriate for them since it is not a network (does not have nodes connecting at least two others)

Statistics: Posted by oleg — 25 Feb 2010, 22:29

Hi guys,
continue my struggling trip on the network topologies.
my question is, how to approximate the network presented below to nods (not all organic linker are shown.)

image descr: metals are independent (tried addsymm)

thank you!

added: hm i can collapse first (from the top) and second, and 3rd and 4th, can I?

Statistics: Posted by alexandr — 25 Feb 2010, 20:41

rjgildea wrote:
You could also get an idea for yourself of how accurate the electron counts are by running squeeze on some structures (with a known, ordered solvent) with the solvent excluded from the model.

Richard

Thanks Richard, that is a nice straightforward trick. The answer is thus more the less: it depends on the quality of the data. With good data you may easily see the protons in the difference map, with less good data not. Squeeze will behave similarly.  read more »