From owner-chemistry@ccl.net Sat Apr 18 05:06:01 2009 From: "Pablo Vitoria Garcia pablo.vitoria . ehu.es" To: CCL Subject: CCL: structure from hkl Miller index Message-Id: <-39111-090418050019-5450-awZ5rdvj64/YFBWLUi5GWA**server.ccl.net> X-Original-From: Pablo Vitoria Garcia Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=ISO-8859-1; DelSp="Yes"; format="flowed" Date: Sat, 18 Apr 2009 10:59:24 +0200 MIME-Version: 1.0 Sent to CCL by: Pablo Vitoria Garcia [pablo.vitoria . ehu.es] Dear David, There are lots of free software that can solve a crystal structure =20 > from the data collected using X-ray diffraction, either on a single =20 crystal or a powder specimen. See, for example, the CCP14 site =20 (http://www.ccp14.ac.uk/tutorial/tutorial.htm) which although a bit =20 outdated can be a helpful starting point. Anyway, I would advise you to contact a crystallographer, since the =20 training for the task can be quite demanding (specially for powder =20 samples). But first of all, if you know the formula of the compound you are =20 interested in, I would check the crystallographic databases to see if =20 its structure is already know: ICSD for inorganic compounds, CSD for =20 (metalo)organic ones, PDF4,... If you don not have access to these, I =20 can help you if you give me the details of the compound. Best regards Pablo ******************************** Pablo Vitoria Garcia Research Services Technician, X-ray Diffraction Unit Web: http://www.ehu.es/SGIker/es/rayos_x/ Universidad del Pa=EDs Vasco (UPV/EHU) Fac. Ciencia y Tecnolog=EDa, Edificio CD3 c/ Barrio Sarriena s/n, 48940 Leioa (Bizkaia) Tfno. +34 946015334 Fax +34 946013500 ******************************** "David Santos david++fq.uh.cu" ha escrito: > > Sent to CCL by: "David Santos" [david::fq.uh.cu] > Is there any (free) software that propose the structure of a solid =20 > from the hkl Miller index obtained from X-ray diffraction? > Actually I want to know the parameters of the atoms in the unit cell =20 > for a salt of known molecular formula. > I accept any other sugerence. > Thanks in advance, > > David Santos Carballal > Departamento de Qumica-Fsica > Facultad de Qumica-Universidad de la Habana. > Zapata s/n entre G y Carlitos Aguirre. > Prncipe. Plaza de la Revolucin. > Cdigo Postal 10400. Cuba > e-mail: david]-[fq.uh.cu phone: 878-0684 > url: http://www.fq.uh.cu/investig/gqf/e/dsc.htm > > > > -=3D This is automatically added to each message by the mailing script =3D= -> > > --=20 ******************************** Pablo Vitoria Garcia Servicios Generales de Rayos X Universidad del Pa=EDs Vasco (UPV/EHU) Fac. Ciencia y Tecnolog=EDa, Edificio CD3 c/ Barrio Sarriena s/n, 48940 Leioa (Bizkaia) Tfno. +34 946015334 Fax +34 946013500 ********************************