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1996 (2)
1Author    St Gallinat, Hk Müller-BuschbaumRequires cookie*
 Title    Two Examples of Partial and Total Defects in the B a«Ln2Mo4O i6-Type: BaCu0 41 ■o,59Pr2Mo4 0 16 and BaBYb2Mo4Ojg  
 Abstract    Single crystals of (I) BaCu0.4iPr2M o4O 16 and (II) BaYb2M o40 16 have been prepared by flux technique. Both compounds crystallize with m onoclinic symmetry, space group C2h-C 2 /c with (I): a = 5.352(11), b = 12.888(2), c = 19.399(4) A; ß = 90.89(3)°; (II): a = 5.181(7), b = 12.467(3), c -19.350(3) Ä , ß -91.93(2)°, Z = 4. The crystal structure is characterized by i [ B a M 0 12]-chains along [010]. In the first case the M positions are occupied by copper by about 41%, in the second case these positions remain com pletely unoccupied. With respect to the crystal chemistry of the reference compound Ba(Cu0.22Mg() 78)Nd2Mo4O 16 all substan­ ces of the composition BaLn2M o40 16 should be written as Ba»Ln2Mo40 16 indicating the holes in th e^ B a M O i^ -c h a in s by ■. 
  Reference    (Z. Naturforsch. 51b, 85—8 [1996]; eingegangen am 7. Juni 1995) 
  Published    1996 
  Keywords    Barium, Copper, Rare Earth, Molybdenum Oxide, Crystal Structure 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0085.pdf 
 Identifier    ZNB-1996-51b-0085 
 Volume    51 
2Author    O. Sedello, Hk Müller-BuschbaumRequires cookie*
 Title    On the Crystal Structure o f (C u ,M n )3 66M o30 12  
 Abstract    Single crystals o f (Cu,M n)3 66M o 30 12 have been prepared in sealed copper tubes. X-ray investiga­ tions lead to orthorhombic symmetry, space group Dih-Pnm a, a = 5.1541(9), b = 10.788(2), c = 18.114(3)) Ä , Z = 4. (Cu,M n)366M o 30 12 is iso­ typic to NaCo2 31M o 30 12 and (C u,C o)3 75M o 30 12 with split positions for two o f the metals. 
  Reference    Z. Naturforsch. 51b, 447—449 (1996); eingegangen am 31. August 1995 
  Published    1996 
  Keywords    Copper, Manganese, Molybdenum Oxide, Crystal Structure 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0447_n.pdf 
 Identifier    ZNB-1996-51b-0447_n 
 Volume    51