Can anyone please send me the JCPDS (Joint Committee for Powder Diffraction Standards) file number 10-454 for cadmium sulfide nanoparticles.
well... I should say two things:
- the first one is that the JCPDS is now called ICDD (www.icdd.com) and this change of name just happened in 1978...
- the second one is a suggestion to take the data off (remember the PDF database and the data are subjected to copyright...). In any case you have chosen some card of 1955 with no quality mark!
- the third one is to remember that a nanocrystalline powder does not necessarily match the ICDD PDF2 card. You need to exclude any interplay between structure and microstructure to get some match. Search match AND modelling of the pattern based on the structure and microstructure is therefore advised if you want to be sure of the match (well I promised to say two things.. this one is a free bonus!)
I'll not enter into the debate as to if it should be called as JCPDS or ICDD. But one thing is pretty certain that it is not always possible to erase the maiden name, completely. For instance, I hail from a city Kolkata (erstwhile Calcutta, coined by the British) and even though the name of the city has been changed for quite a some time, still it is commonly known by its former name. Both JCPDS and/or ICDD should be same as long as it could convey the meaning in a social media site!
Regarding the sharing of database, as Matteo said, yes it is against the business interests of ICDD and hence should not be practiced. But there is still enough debate on as to who should actually own the copyright for someone's work. You all know this refers to the massive ICSD and ICDD databases. My advice to young researchers like Aishwarya would be ''why insist only on ICDD and ICSD databases??''
There are many people for who worked hard to provide free data bases to people like us, who do not have access to these expensive databases, but allows us to directly download the CIF file, which can easily be used to get much more information than ICDD provides! Could the FIZ Karlsruhe let me know why should we have to renew the license every year to continue the use of their product? I understand and accept that if we do not pay for renewal, we cannot claim access to the new crystal structures that became part of database after our initial purchase.
We know how to cheat the system but why should we be forced to do so? Since we purchased the database once, even if we do not renew the license, we should have a continuos access to it (without any updated/newer structures).
A few FREE databases (for my younger colleagues like Aishwarya):
Crystallography Open Database (http://www.crystallography.net/search.html)
American Mineralogist Crystal Structure Database (http://rruff.geo.arizona.edu/AMS/amcsd.php)
And there are many more!!
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