Go toArchive
Browse byFacets
Bookbag ( 0 )
'Crystal Structure' in keywords Facet   section ZfN Section B:Volume 049  [X]
Results  52 Items
Sorted by   
Publication Year
1994 (52)
1Author    Enno Lork, Ulrich Behrens, G. Ünter Steinke, Rüdiger MewsRequires cookie*
 Title    Die Kristallstruktur von trans-l,3?5-Trichloro-l,3>5-trioxo  
 Abstract    1 A6, 3 A6, 5 A6,2,4,6-trithiatriazin (/?-Sulfanurchlorid) The Crystal Structure o f /raws-1,3,5-Trichloro-1,3,5-trioxo-1 X6, 3/i6, 516, 2,4,6-trithiatriazine (/?-Sulfanuric Chloride) The crystal structure o f /?-(N S(0)C l)3 is reported. 
  Reference    Z. Naturforsch. 49b, 437 (1994); eingegangen am 22. November 1993 
  Published    1994 
  Keywords    Trichlorotrioxotrithiatriazines, Sulfanuric Chlorides, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0437.pdf 
 Identifier    ZNB-1994-49b-0437 
 Volume    49 
2Author    Siegfried Pohl, Michael Peters, Detlev Haase, Wolfgang SaakRequires cookie*
 Title    Bildung von Iodoantimonaten und -bismutaten. Kristallstrukturen von (PhCH2NEt3)4 [Sb6l 2 2 L (PhCH2NEt3)4 [Bi6l 2 2 ] und (Ph4P)3[Bi5I18] Form ation of Iodoantim onates and Bismutates. Crystal Structures of (PhCH 2N E t3)4[Sb6I22], (PhC H 2N Et3)4[Bi6l22] and (Ph4P)3[Bi5I 18]  
 Abstract    The formation and the crystal structures of the title compounds are reported. (PhCH2N E t3)4[Sb6l 22] and (PhCH 2N E t3)4[Bi6l 22] are isotypic and contain a novel [E6I22]4~ anion (E = Sb, Bi). The anion of (Ph4P)3[Bi5I18] consists of a linear chain of five face-sharing [B il6] octahedra. 
  Reference    Z. Naturforsch. 49b, 741—7 (1994); eingegangen am 27. Januar 1994 
  Published    1994 
  Keywords    Iodoantimonates, Iodobismutates, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0741.pdf 
 Identifier    ZNB-1994-49b-0741 
 Volume    49 
3Author    Viktor Keimes, Albrecht MewisRequires cookie*
 Title    MgNi2P -das erste ternäre Phosphid mit geordneter Fe3C-Struktur MgNi2P -The First Ternary Phosphide with an O rdered Fe3C Type Structure  
 Abstract    MgNi2P was prepared by heating a mixture of the elements and investigated by means of single crystal X-ray methods. The compound crystallizes in an ordered Fe3C-type structure 
  Reference    Z. Naturforsch. 49b, 1071—1073 (1994); eingegangen am 00. 00. 0000 
  Published    1994 
  Keywords    Ternary Nickelphosphide, Magnesium, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1071.pdf 
 Identifier    ZNB-1994-49b-1071 
 Volume    49 
4Author    Jörn Müller, PetraEscarpa Gaede, Ke QiaoRequires cookie*
 Title    ^-Olefin-Iridium-Komplexe, XXII [1] C -H -Aktivierung von aromatischen und aliphatischen Solvensmolekülen RH bei der Reaktion von [Cp*IrCI2 ] 2 mit Butadienmagnesium unter Bildung von [Cp*Ir(773-C4H 7)R] sowie Kristallstruktur von [Cp*Ir(i/3-C4H 7)C6H 5] jr-Olefin Iridium Complexes, XXII [1] C -H Activation of Aromatic and Aliphatic Solvent Molecules RH in the Reaction of [Cp*IrCl2 ] 2 with Butadienemagnesium with Formation of [Cp*Ir(?;3 -C4 H 7 )R], and Crystal Structure of [Cp*Ir(773 -C4 H 7 )C6 H 5] Activation of C -H , (l-Methylallyl)(pentamethylcyclopentadienyl)iridium-a-organyl Com­ plexes  
 Abstract    Reactions of [Cp*IrCl2]2 (Cp* = ^3-C5M e5) with [MgC4H6 -2 THF]" at low temperature give [Cp*Ir(^4-C4H6)] together with [Cp*Ir(/73-C4H 7)R] compounds, the latter being formed via C -H activation of solvent molecules RH (RH = benzene, toluene, anisole, thiophene, furane, N-methylpyrrole, pentane, cyclohexane. THF). In the case of pyrrole, C -N -activation occurs. The ratio of syn and anti isomers of the 1-methylallyl com plexes as well as the sites o f C -H activation of RH were investigated by NM R spectrometry. An enantiomorphous crystal of [Cp*Ir(773-C4H7)C6Hs] was characterized by X-ray diffraction analysis which reveals trigonal planar coordination at the Ir atom and an exo, syn conformation o f the 1-methylallyl ligand. A mechanism of the reaction which involves 16-electron intermediates is discussed. The corresponding system [Cp*RhCl2]2/butadienemagnesium/RH gives only [Cp*Rh(>/4-C4H6)], and no C -H activation is observed. 
  Reference    Z. Naturforsch. 49b, 1645—1653 (1994) 
  Published    1994 
  Keywords    Synthesis, NMR Spectra, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1645.pdf 
 Identifier    ZNB-1994-49b-1645 
 Volume    49 
5Author    Thom As Schleid, Falk LissnerRequires cookie*
 Title    Oxidsulfidchloride der Lanthanide vom Typ M 4OS4Cl2 (M = L a-N d ) M 4OS4Cl2-Type Oxysulfide Chlorides of the Lanthanides (M = L a -N d )  
 Abstract    Oxysulfide chlorides, M4OS4Cl2, o f the lanthanides (M = L a -N d) are obtained upon the oxi­ dation o f the metals with sulfur in the presence o f MOC1 (or M 20 3) and MC13 in appropriate molar ratios. Additional NaCl or an excess o f MC13 serving as a flux provide even single crys­ talline material after reactions at 850 °C for seven days in sealed tantalum capsules. The crys­ tal structure o f M4OS4Cl2 (hexagonal, P 6 3mc, no. 186, Z = 2; M = La: a = 933.19(3), c = 701.22(4) pm, c/a = 0.7514, R = RH = 0.020; M = Ce: a = 925.49(3), c = 694.13(3) pm, c/a = 0.7500; M = Pr: a = 919.72(4), c = 688.53(4) pm, c/a = 0.7486; M = Nd: a = 914.25(4), c = 683.12(4) pm, c/a = 0.7472, R = 0.022, Rw = 0.019) contains isolated 0 2--centered (M 3+)4 te-trahedra which are surrounded by twelve S2-and six Cl-, capping vertices, edges, and faces o f each tetrahedron and linking to other [OM4] units. Basically, the structure is identical to that o f Ba4OCl6 if Ba2+ is substituted by M 3+ and 2/3 o f the CL anions are replaced by S2-to secure charge neutrality in M4OS4Cl2. Different models for the C L /S 2-replacement are presented on the basis o f comparisons o f the Madelung part o f the lattice energy (M A PLE) with the M APLE sum o f the binaries (M 20 3, M 2S3, and MC13). 
  Reference    Z. Naturforsch. 49b, 340 (1994); eingegangen am 27. September 1993 
  Published    1994 
  Keywords    Lanthanides, Oxysulfide Chlorides, Synthesis, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0340.pdf 
 Identifier    ZNB-1994-49b-0340 
 Volume    49 
6Author    Enno Lork, Ulrich Behrens, Detlef Viets, Rüdiger MewsRequires cookie*
 Title    Die Kristallstruktur von A sF5 0 S C F 2S (0 2)CF2 The Crystal Structure of A sF 5 * 0& C F2S (0 2)C F 2  
 Abstract    The crystal structure of AsF5 • 0$C F2S(02)CF2 is reported. It crystallizes in the orthorhombic space group Pnma with a = 749.1(3) pm, b = 770.6(3) pm and c = 1630.0(5) pm, V = 960.9(6)-106 pm3, Z = 4. Einleitung Intensiv ist in den letzten Jähen die Chemie der Dithietane F 2tS (O x)FyC F 2S(Ov)Fw im Arbeitskreis Sundermeyer [1] und von uns [2] untersucht wor­ den. Ein Ziel unserer Arbeiten war es, das D onor­ verhalten dieser Systeme gegenüber Fluor-Lewis-Säuren (AsF5, SbF5, BF3) zu untersuchen und die Grenzen zwischen Carbenium-, Sulfoniumsalz-und Addukt-Bildung zu erkennen. Durch Strukturun­ tersuchungen konnte belegt werden, daß AsF5 aus F2CSCF2S F " abstrahiert unter Bildung des cycli­ schen Carbeniumions FCSC F2S+ [lb]; nach IR-und 1' 9F-N M R -U ntersuchungen führt die analoge Umsetzung von F 7SCF?S(0")C F7 (n = 0 -2) zu Sul-foniumsalzen FSC F2S(0")CF2+ [lc], während in Sulfoxid-Derivaten die Lewis-Säure an den Sauer­ stoff unter Bildung von F 2CS(0")CF2S 0 • M F 5 (n = 0 -2) addiert wird. In der vorliegenden Arbeit be­ richten wir über die Struktur des Adduktes F2C S 0 2C F2S 0 • A sF5 (2 a). 
  Reference    Z. Naturforsch. 49b, 422—424 (1994); eingegangen am 21. Oktober 1993 
  Published    1994 
  Keywords    Dithietanes, Sulfoxides, Adducts with Lewis-Acids, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0422_n.pdf 
 Identifier    ZNB-1994-49b-0422_n 
 Volume    49 
7Author    Andreas Ahle, K. Urt Dehnicke, CäciliaM. Aichle-Mössmer, Joachim SträhleRequires cookie*
 Title    Synthesis and Crystal Structure of [Na( 12-Crown-4)2]2[Fe4Se4Cl4]  
 Abstract    [N a(12-crow n-4)2]2[Fe4Se4Cl4] has been pre­ pared by the reaction o f FeCl2 with N a2Se4 in di-methylform amide solution in the presence o f 12-crown-4 as dark red crystals, which were char­ acterized by a_ crystal structure determination. Space group P 1, Z = 2, 6295 observed unique re­ flections, R = 0.085. Lattice dim ensions at 20 °C: a = 1397.3(3), b = 1501.8(4), c = 1570.1(4) pm, a = 85.86(2)°, ß = 64.06(2)°, y = 65.01(2)°. The structure consists o f [Na(12-crown-4)2]+ cations and cuban-like anions [Fe4Se4Cl4]2" with Fe — Fe contacts o f 282.8(3) pm. 
  Reference    Z. Naturforsch. 49b, 434 (1994); eingegangen am 30. September 1993 
  Published    1994 
  Keywords    Tetranuclear Iron Selenium Cluster Dianion, Synthesis, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0434_n.pdf 
 Identifier    ZNB-1994-49b-0434_n 
 Volume    49 
8Author    Klaus StöweRequires cookie*
 Title    Zur Struktur und Dotierung von Selenosilikaten: die Kristallstruktur von Er2S e S i0 4 und Er3 75Ca0 25Se2 75C10 25Si20 7 Structure and Doping of Seleno Silicates: the Crystal Structures of Er2SeSi04 and E r3 7^CaQ 2$Se2 ^C Iq ^Si^O-y  
 Abstract    Well-shaped brown and pink isometric crystals were obtained as by-products o f the syn­ thesis o f erbium selenides from the elements in evacuated and sealed silica ampoules with graphite inlets. They could be identified as erbium seleno m ono-and disilicates by energy dis­ persive X-ray fluorescence and X-ray structure determination. The monosilicate Er2S e S i0 4 crystallizes isotypically to N d 2S e S i0 4 in the space group Pbcm with the lattice parameters a = 600.2(2), b = 688.0(2), c = 1075.2(2) pm and represents the second known seleno inosilicate o f the rare earths. From X-ray structure analysis an isotypic relation between the disilicate Er3 75Ca0 25Se2 75C10 25Si20 7 and the com pound Sm4S3Si2O v was found, the former crystallizing in the space group 14,/am d with the lattice parameters a -1177.7(2) and c = 1376.5(2) pm. The doping o f the sorosilicate with the elements Ca and Cl originated from contam inations in the graphit inlets used in the procedure. 
  Reference    Z. Naturforsch. 49b, 733—7 (1994); eingegangen am 13. Januar 1994 
  Published    1994 
  Keywords    Erbium Seleno Silicates, Crystal Structures, Doping Effects 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0733.pdf 
 Identifier    ZNB-1994-49b-0733 
 Volume    49 
9Author    S. Möhr, Hk Müller-BuschbaumRequires cookie*
 Title    Ein gemischtvalentes Oxometallat mit Cr3+ anstelle von Ti3+: Ba2Ti4+Cr20 13  
 Abstract    Single crystals of Ba2Ti4+C r20 13 w ere p rep a red by C 0 2-L A S E R h igh te m p era tu re r ea ctio n s and in v estig a te d by X -ra y w o rk . T h e c o m p o u n d c ry sta llize s w ith m o n o c li­ nic sym m etry, a = 15.0 1 8 5 , b = 3 .9 4 1 9 , c -9 .0 7 6 4 Ä , ß = 9 8 .1 3 7 °, Z = 2. B a 2T i4Cr20 13 is iso ty p ic to N a 2T i60 13. T h e crystal stru ctu re is d isc u sse d w ith r e sp e ct to o rd ered or d iso rd ered d istrib u tio n s o f T i4+ and C r3+ u sin g c a lc u la tio n s o f C o u lo m b term s o f la ttice energy. It is sh o w n , th at th e sta b ility o f th is stru ctu re ty p e w ill b e d e c r e ­ ased by rep la ce m en t o f N a + by io n s w ith h ig h er o x id a tio n sta tes. 
  Reference    Z. Naturforsch. 49b, 911 (1994); eingegangen am 17. Februar 1994 
  Published    1994 
  Keywords    Barium, Titanium, Chromium, Oxide, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0911.pdf 
 Identifier    ZNB-1994-49b-0911 
 Volume    49 
10Author    S. Möhr, Hk Müller-BuschbaumRequires cookie*
 Title    Uber ein gemischtvalentes Oxoniobat mit planaren Polygonen um Niob und Barium: BaNb2+Nb2+0 6 On a Mixed Valent Oxoniobate Containing Planar Polygons A round Niobium and Barium: BaNb2 +N b^+0 6  
 Abstract    Single crystals of B aN b30 6 were prepared by C 0 2-LA SER high temperature technique. The compound crystallizes with trigonal symmetry C fv-R 3 m , a = 11.4333, c -3.4949Ä , Z = 3. The new structure type is characterized by planar N b 0 4 and planar B a 0 6 polygons. The results are discussed with respect to related compounds like Ca0.75 Nb3O6 or N aNb30 6. 
  Reference    Z. Naturforsch. 49b, 915 (1994); eingegangen am 17. Februar 1994 
  Published    1994 
  Keywords    Barium, Niobium, Oxide, Synthesis, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0915.pdf 
 Identifier    ZNB-1994-49b-0915 
 Volume    49 
11Author    Hk Müller-Buschbaum, S. FrenzenRequires cookie*
 Title    Zur  
 Abstract    Kenntnis von EuBeGd20 5 mit einem Beitrag über Phasen der Zusammensetzung M1 _xM'A .BeLn20 5 : Ca0,4Sr0,6BeSm2O5, Ba0,25Ca0,75BeNd2O5 und Ba0,36Sr0,64BeNd2O5 On E uB eG d20 5 and on Phases of the Composition M 1_^M'xBeLn20 5: Ca0,4Sr06BeSm2O 5, Bao,2sCao,75 BeNd2 0 5 and Ba0 3 6 Sr0,64BeNd2O5 Single crystals of (I): E uB eG d20 5, (II): Ca0,4Sr0ABeSm 20 5, (III): Ba0,25 Ca()75B eN d2O 5 and (IV): Ba<)3 6Sr()64B eN d2O s were prepared by (I): plasma torch and (II)-(IV): C 0 2-LASER technique. X-Rayo investigations lead to (I) monoclinic (space group C 2h-P2j/c, a = 7.126, b = 6.457, c = 9.394 A, ß = 90.40°) and (I I)-(I V) orthorhombic symmetry (D ^ -P n m a). (II: a = 9.454, b = 7.142, c = 6.490 A; III: a = 9.508, b = 7.188, c = 6.531 A; IV: a = 9.642, b = 7.295, c = 6.614 A). In contrary to the phases M j^ M '^ B eL ^ O s, E uBeG d2Os is characterized by an ordered distribution of Eu2+ and G d3+ inside o f the Kagome network. 
  Reference    Z. Naturforsch. 49b, 919 (1994); eingegangen am 28. Februar 1994 
  Published    1994 
  Keywords    Alkaline Earth, Beryllium, Rare Earth, Oxide, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0919.pdf 
 Identifier    ZNB-1994-49b-0919 
 Volume    49 
12Author    D. Osterloh, Hk Müller-BuschbaumRequires cookie*
 Title    Zur Kenntnis von SrCo2V 208 und SrCo2(A s0 4)2 On SrCo2V20 8 and SrCo2(A s 0 4)2  
 Abstract    SrCo2V20 8 (I) and SrCo2(A s 0 4)2 (II) were prepared by crystallization from melts and investigated by X-ray single crystal technique. (I) is isotypic to the SrNi2V 20 8-type and crys­ tallizes with tetragonal symmetry, space group Cly-14-icd, a = 12.267; c = 8 .4 2 4 Ä ; Z = 8. (II) is iso ty p ic to th e la te ly fo u n d S r N i2(P 0 4) 2, sp a c e g ro u p C J -P 1 , a = 5.713; b = 6.903; c = 9.417 A ; a = 110.48; ß = 101.43; 
  Reference    Z. Naturforsch. 49b, 923 (1994); eingegangen am 28. Februar 1994 
  Published    1994 
  Keywords    Strontium, Cobalt, Vanadium, Arsenic, Oxide, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0923.pdf 
 Identifier    ZNB-1994-49b-0923 
 Volume    49 
13Author    Z. NaturforschRequires cookie*
 Title    NaK9Tl13: Eine neue Verbindung an der Zintl-Grenze mit isolierten, von Thallium besetzten Tl17-Ikosaedern  
 Abstract    NaK9T l13 (a = 1152.0(1) pm, Im 3, Z = 1, RI -0.029, wR2 = 0.0724) has been prepared from the elements and characterized by single crystal X-ray diffraction. The title compound contains isolated T l12 icosahedra, which are centered by T1 atoms. The icosahedra are in an a-W-type arrangement. 
  Reference    Z. Naturforsch. 49b, 935 (1994); eingegangen am 14. Februar 1994 
  Published    1994 
  Keywords    Crystal Structure, Intermetallic Compound, Sodium, Potassium, Thallium 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0935.pdf 
 Identifier    ZNB-1994-49b-0935 
 Volume    49 
14Author    W. S. Sheldrick, B. SchaafRequires cookie*
 Title    Schichtstruktur £, [Te6~] RbTe6, a Polytelluride with Layer Structure ^,[Te6_]  
 Abstract    Reaction of Rb2C 0 3 with Te in M ethanol at 160 °C in the presence of G e yields the polytellu­ ride RbTe6, the structure o f which has been deter­ mined by X-ray structural analysis. The poly­ anions (£,[Te6~] contain Te6 rings with a chair conformation, which are connected via four T e-T e bonds into a layer structure. A T structure is exhibited by the resulting TeTe3 units. The Rb cations adopt positions betw een neighbouring parallel anion layers and are surrounded by 12 Te atoms in their first coordination sphere. 
  Reference    Z. Naturforsch. 49b, 993—9 (1994) 
  Published    1994 
  Keywords    Rubidium Polytelluride, Methanolothermal Synthesis, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0993_n.pdf 
 Identifier    ZNB-1994-49b-0993_n 
 Volume    49 
15Author    F.-D Martin, Hk Müller-BuschbaumRequires cookie*
 Title    Synthese und Kristallstruktur von NaM g1?64Cu0 ,36^3^10 Synthesis and Crystal Structure of NaM glt64Cuoi36V 3 0 1o  
 Abstract    Single crystals of NaMg] 64Cu().36V 3O 10 have been prepared by heating mixtures of Na2C 0 3, M gC 03, CuO and V 20 5 above the melting point. The yellow crystals show triclinic symmetry, space group Cj-PT, a = 6.726(8), b = 6.743(7), c = 9.625(2) Ä , a = 100.705(9), ß -104.57(1), y = 101.700(9)°, Z = 2. N aM g164Cu0.36V 3O 10 represents a new structure type showing V 3O 10 groups, a statistical distribution of Mg2+ and Cu2+ on two point positions, and N a+ in an irregular coordination. 
  Reference    Z. Naturforsch. 49b, 1329—1333 (1994); eingegangen am 6. Mai 1994 
  Published    1994 
  Keywords    Sodium Magnesium, Copper, Vanadium Oxide, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1329.pdf 
 Identifier    ZNB-1994-49b-1329 
 Volume    49 
16Author    F.-D Martin, Hk Müller-BuschbaumRequires cookie*
 Title    Zur Kenntnis von K4CuV50 15C1 On K4 CuV5 0 1 5 C1  
 Abstract    Single crystals of K4CuV50 15C1 were prepared by crystallization from the melt. The yellow brown crystals show tetragonal symmetry, space group C 4-P 4, a = 8.8690, c = 5.4196 A , Z = 1. K4CuV50 15C1 is strongly related to KBaCuV20 7Cl and K2V 30 8. V (l) shows V 20 7 double tetrahedra connected by square V 0 5 and C u 0 4Cl pyramids. The crystal structure is discussed with respect to the related compounds. 
  Reference    Z. Naturforsch. 49b, 1459—1462 (1994); eingegangen am 9. Juni 1994 
  Published    1994 
  Keywords    Potassium, Copper, Vanadium Oxide-Chloride, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1459.pdf 
 Identifier    ZNB-1994-49b-1459 
 Volume    49 
17Author    D. Frerichs, Hk Müller-BuschbaumRequires cookie*
 Title    Ein Beitrag zur Kristallchemie von Verbindungen mit Johillerit-Struktur: On the Crystal Chemistry of Compounds with Johillerite Structure: KCo3 Cu(As2 5 8 V0 4 2 )O i2  
 Abstract    Single crystals of KCo3Cu(As2.58Vo42) 0 12 were prepared by solid state reactions below the melting point of the reaction mixture (K 2C 0 3, CuO, CoC20 4, V 20 5 and 3 A s20 5 -5 H 20) . It crystallizes with m onoclinic symmetry, space group C |h-C 2 lc, a = 12.207, b = 12.730, c = 6.811 A , ß = 113.69°, Z -4. The structure type is characterized by isolated twisted-square C u 0 4-polygons, C o 0 6-octahedra and a special 4+4-coordination o f the potassium ion. A s5+ and V*+ are in tetrahedral coordination with a partly statistical distribution of these ions. 
  Reference    Z. Naturforsch. 49b, 1463—1466 (1994); eingegangen am 13. Juni 1994 
  Published    1994 
  Keywords    Potassium, Cobalt, Arsenic, Vanadium Oxide, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1463.pdf 
 Identifier    ZNB-1994-49b-1463 
 Volume    49 
18Author    Christian Robl, VolkerG. ÖbnerRequires cookie*
 Title    Kristallstruktur und hydrothermale Darstellung der Schichtverbindung B e2( P 0 4)(0 H )* 2 H 20 Crystal Structure and Hydrotherm al Synthesis of the Layered Com pound Be2 ( P 0 4 ) (0 H ) * 2 H 20  
 Abstract    Colourless monoclinic single crystals of B e2(P 0 4) (0 H) -2 H 20 (space group P 2 Jn) have been prepared under hydrothermal conditions in aqueous solution. Crystal data: a = 631.7(1), b = 1108.7(2), c = 812.7(2) pm, ß = 105.83(2)°, 910 unique reflections, 108 parameters, Rg = 0.0233. P is tetrahedrally coordinated by 4 oxygen atoms. Each of the two crystallographically unique Be atoms has two phosphate oxygen atoms, one water molecule, and one OH group as coordination partners. The tetrahedra share common vertices and build up a two-dim ensionally infinite pattern. The OH group links the two unique Be centered tetrahedra. Loss of water com m ences at 300 °C and is finished at 580 °C. 
  Reference    Z. Naturforsch. 49b, 1499—1502 (1994); eingegangen am 23. Juni 1994 
  Published    1994 
  Keywords    Beryllophosphate, Crystal Structure, Differential Thermal Analysis, Layered Compound 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1499.pdf 
 Identifier    ZNB-1994-49b-1499 
 Volume    49 
19Author    S. Mann, M. JansenRequires cookie*
 Title    Ein neuer Zugang zu ionischen Thionylimiden. Einkristallstruktur von N(CH3)4NSO A New Access to Ionic Thionylimides. Single Crystal Structure of N(CH3)4NSO  
 Abstract    Single crystals of N (C H 3)4NSO have been prepared via ion exchange from RbNSO or CsNSO and tetraalkylammonium halides in liquid ammonia and investigated by X-ray single crystal techniques (14, a = 1137.6(1), c = 1134.9(2) pm, Z = 8, T = -1 0 0 °C). The crystal structure of N (C H 3)4NSO is related to the CsCl-type of structure. Using the same preparative route N M e3B zN SO has been obtained. Its lattice powder data (orthorhombic primitive; a = 896.3(2) 
  Reference    Z. Naturforsch. 49b, 1503—1506 (1994); eingegangen am 13. Juni 1994 
  Published    1994 
  Keywords    Thionylimide, Ion Exchange, Tetramethylammonium, Crystal Structure, Benzyltrimethylammonium 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1503.pdf 
 Identifier    ZNB-1994-49b-1503 
 Volume    49 
20Author    Oliver Heilmann, Hans-Dieter Hausen, Wolfgang KaimRequires cookie*
 Title      
 Abstract    The crystal structure determination of the new rhodium(III)-complex [(DM L)(C5Me5)ClRh](PF6). DML = 1,3-dimethyllumazine, reveals 0 4,N5 coordination of the metal to DML with not very different bond lengths of 213.0(2) pm (R h -N) and 219.2(2) pm (R h -O). This result stands in contrast to the previously reported structure of a cationic dihydrobiopterin bound to [Mo(0)C13] which exhibited a very unsymmetrical chelate ar­ rangement. Chemical and electrochemical two-electron reduction of the Rh(III) complex led to a very labile Rh(I) species (DM L)(C5Me5)Rh which is distinguished by an intense charge transfer band in the visible. The results confirm the characterization of DML as a weak o donor In acceptor ligand with a rather low-lying tc* orbital. 
  Reference    Z. Naturforsch. 49b, 1554—1560 (1994); received July 8 1994 
  Published    1994 
  Keywords    Crystal Structure, Pteridine Heterocycles, Rhodium, Electrochemistry, Coordination 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1554.pdf 
 Identifier    ZNB-1994-49b-1554 
 Volume    49 
1
2
3
Next