Dear Angel Luis, Ca3(PO4)2 and Ca2P2O7 are available "for free" at the Crystallography Open Database, http://sdpd.univ-lemans.fr/cod/search.html Just enter the three elements Ca, P, and O and put 3 as the strict number of elements and the first and last hit of 9 (some of them not precisely phosphates :-)) are your compounds. You can download the CIF for free. Hope this helps. Leo
Dr. Leopoldo Suescun Postodoctoral Appointee Materials Science Division - Bldg 223 - Rm D217 Argonne National Laboratory 9700 S. Cass Ave., Argonne, IL 60439 Phone: 1 (630) 252 9760 Fax: 1 (630) 252 7777 URL: http://www.msd.anl.gov/groups/nxrs/personnel/suescun/index.html _____ From: Angel L. Ortiz [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 22, 2007 10:53 AM To: [email protected] Subject: crystal structures needed Dear All: Could anyone provide me the crystal structures of beta and alpha tricalcium phosphates (Ca3(PO4)2), alpha and beta calcium pyrophosphates (Ca2P2O7), hydroxyapatite (Ca10(PO4)6(OH)2), and oxide calcium phosphate (Ca4O(PO4)2). Thanks in advance, Angel Luis
BEGIN:VCARD VERSION:2.1 N:Suescun;Leopoldo FN:Leopoldo Suescun ([EMAIL PROTECTED]) ORG:Argonne National Laboratory - Materials Science Division TITLE:Postdoctoral Appointee TEL;WORK;VOICE:+1 (630) 252-9760 TEL;HOME;VOICE:+1 (630) 910-1562 TEL;WORK;FAX:+1 (630) 252-7777 ADR;WORK:;;9700 S. Cass Ave.;Argonne;Illinois;60439;USA LABEL;WORK;ENCODING=QUOTED-PRINTABLE:9700 S. Cass Ave.=0D=0AArgonne, Illinois 60439=0D=0AUSA URL;WORK:http://www.msd.anl.gov/groups/nxrs/people/suescun.html EMAIL;PREF;INTERNET:[EMAIL PROTECTED] REV:20050630T182807Z END:VCARD
