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1	Author	Mit Unterschiedlich, Koordinierten Zinkionen, Joachim Pickardt, Gill-Taik Gong, Sabine Wischnack, Christina Steinkopff	Requires cookie*
	Title	Kristallstruktur zweier Zinkthiocyanat-Hexamethylentetramin-Addukte, Zn(SCN)2» (Q H ^N,), und {Zn(SCN)2 C6HnN4 2H 20}(SCN)2-(C6H 12N4)2, and {Zn(SCN)2-C6H 12N4-2H 20}", with Differently Coordinated Zinc Ions
	Abstract	of the adducts Zn(SCN),-(C6H12N4)2 (1), and {Zn(SCN)2-C6H 12N4-2H20}" (2) were obtained by crystallization from aqueous solutions containing hexamethylenetetrami ne, potassium thiocyanate and zinc nitrate or zinc sulfate, resp., under identical conditions, as two totally different products. 1 crystallizes orthorhombically, space group P nmm, Z -2, a -622.4(5), b -1152.3(7), c = 1394.0(9) pm; 2 is monoclinic, space group C2/c, a = 984.4(3), b = 1217.0(5), c = 1257.4(6) pm, andß = 111.69(5)°. The crystal structure of 1 contains discrete molecules of the complex, in which the zinc ion is tetrahedrally coordinated by two NCS li gands, and two hexamethylenetetramine molecules, which act as monodentate ligands. In 2 however, the zinc ions are octahedrally coordinated. A "supramolecular" structure is form ed: The hexamethylenetetramine molecules act as bridging bidentate ligands and connect [Zn(H20) 2(NCS)2] units forming zig-zag chains. Adjacent chains are interconnected via hydrogen bonds. The formation of the two compounds with different coordination may be due to the fact, that the educts Zn(N03)2-4H20 and ZnS04-7H20 contain Zn(H20) 4 and Zn(H20) 6 moieties, resp., and that these species are retained in solution.
	Reference	Z. Naturforsch. 49b, 325—329 (1994); eingegangen am 24. August 1993
	Published	1994
	Keywords	Hexamethylenetetramine Complexes, Zinc Thiocyanate Adducts, Crystal Structure Crystals
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	TEI-XML for	default:Reihe_B/49/ZNB-1994-49b-0325.pdf
	Identifier	ZNB-1994-49b-0325
	Volume	49

2	Author	Enno Lork, Ulrich Behrens, G. Ünter Steinke, Rüdiger Mews	Requires 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
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	Identifier	ZNB-1994-49b-0437
	Volume	49

3	Author	Müller-Buschbaum	Requires cookie*
	Title	Zur Kristallchemie der Oxoplatinate. Eine neue Phase der Zusammensetzung Sr4_j.Naj.PtO6 (jt = 0,33)
	Abstract	On the Crystal Chemistry of Oxoplatinates. A New Phase of the Composition Sr4 _xN avP t0 6 (x -0.33) G. Tams, Hk. Single crystals of Sr3 67Na() 33PtO fi were prepared by heating oxide mixtures in closed silver tubes and investigated by X-ray single crystal techniques. It crystallizes with trigonal symme try, space group Dfd-R 3 c (Nr. 167) with a = 9.6617, c = 11.6580 Ä, Z = 6. Sr367Na()33P t0 6 belongs to the Sr4P t0 6 type and is isotypic to K4CdCl6. One point position characterized by a trigonal prismatic O 2-coordination is occupied by N a+ and Sr2+ statistically. The crystal structure is discussed with respect to the related compounds Sr3C u P t0 6 and Ca3 5Cu() 5P t0 6.
	Reference	Z. Naturforsch. 49b, 581—584 (1994); eingegangen am 12. Januar 1994
	Published	1994
	Keywords	Strontium, Sodium, Platinum Oxide Crystal Structure
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	Identifier	ZNB-1994-49b-0581
	Volume	49

4	Author	Siegfried Pohl, Michael Peters, Detlev Haase, Wolfgang Saak	Requires 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
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	Identifier	ZNB-1994-49b-0741
	Volume	49

5	Author	Viktor Keimes, Albrecht Mewis	Requires 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
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	Identifier	ZNB-1994-49b-1071
	Volume	49

6	Author	Holger Szillat, Hanskarl Müller-Buschbaum	Requires cookie*
	Title	Synthesis and Crystal Structure of Cuq^sH oj 25w 2o 8
	Abstract	Single crystals of Cu(l.2sHO\|.2sW20 8 were prepared by recrystallization from melts and investigated by X-ray diffractometer technique. Cuo^sHoj 25W 2Os crystallizes with m ono clinic symmetry, space group C2/c, o -19.123, b -5.613, c = 11.479 Ä , ß = 111.44°. Z = 8. It represents a new structure type characterized by W40 18 groups and Cu+/H o3+ at one point position in statistical distribution. Cu+/H o3+ show an octahedral coordination. A nother point position is occupied by Ho3+ with C. N. = 7.
	Reference	Z. Naturforsch. 49b, 1145—1149 (1994); eingegangen am 25. März 1994
	Published	1994
	Keywords	Crystal Structure Copper Holmium, Tungsten, Oxide
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	Identifier	ZNB-1994-49b-1145
	Volume	49

7	Author	Jörn Müller, PetraEscarpa Gaede, Ke Qiao	Requires cookie*
	Title	^-Olefin-Iridium-Komplexe, XXII [1] C -H -Aktivierung von aromatischen und aliphatischen Solvensmolekülen RH bei der Reaktion von [CpIrCI2 ] 2 mit Butadienmagnesium unter Bildung von [CpIr(773-C4H 7)R] sowie Kristallstruktur von [CpIr(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 [CpIrCl2 ] 2 with Butadienemagnesium with Formation of [CpIr(?;3 -C4 H 7 )R], and Crystal Structure of [CpIr(773 -C4 H 7 )C6 H 5] Activation of C -H , (l-Methylallyl)(pentamethylcyclopentadienyl)iridium-a-organyl Com plexes
	Abstract	Reactions of [CpIrCl2]2 (Cp = ^3-C5M e5) with [MgC4H6 -2 THF]" at low temperature give [CpIr(^4-C4H6)] together with [CpIr(/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 [CpIr(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 [CpRhCl2]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
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	Identifier	ZNB-1994-49b-1645
	Volume	49

8	Author	F.-D Martin, Hk Müller-Buschbaum	Requires 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
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	Identifier	ZNB-1994-49b-1329
	Volume	49

9	Author	YueQing Zheng, Arnold Adam	Requires cookie*
	Title	Ein neues Carbonat mit Baylissit-Struktur: Rb2[M g(C 03)2(H 20 )4] A New Carbonate with Baylissite Structure: Rb2 [Mg(C0 3 )2(H 2 0 )4]
	Abstract	The new complex carbonate Rb2[M g (C 0 3)2(HoC))4] crystallizes in the Baylissite-tvpe structure with a = 1130,4(3), b = 641,9(1), c = 703,3(2) pm, ß = 99,62(1)°, V EZ = 503,2(2), space group P2l/n (No. 14) and Z = 2. In comparison with the isostructural potassium compound the cell dimensions increase in b-and c-and decrease in ö-direction. This effect depends on the greater coordination number of Rb+ and the rigidity of strong hydrogen bonds. The carbonate anion exhibits significant deviations from D 3h-symmetry (C -O : 127,1(5)-130,2(5) pm, Z_ O -C -O : 117.9(4)-121,1(3)°).
	Reference	Z. Naturforsch. 49b, 1368—1372 (1994); eingegangen am 25. April 1994
	Published	1994
	Keywords	M etal-Carbonato-Complex, Baylissite Type, Synthesis, Crystal Structure
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	Identifier	ZNB-1994-49b-1368
	Volume	49

10	Author	Stefan Peschel, Dietrich Babel	Requires cookie*
	Title	Zur Kristallstruktur der Cyanoelpasolithe [N(CH3)4]2CsCo(CN)6 und [H3NCH3]2NaFe(CN)6 Concerning the Crystal Structures of the Cyano-Elpasolites [N(CH3 )4]2CsCo(CN) 6 and [H3NCH3]2NaFe(CN) 6
	Abstract	Single crystals of the cyano com plexes [N (C H 3)4]2C sC o(C N)6 and [H3NCH 3]2N aFe(C N)6 were prepared and their structures determined by X-ray methods. The cobalt compound is monoclinic, a -885.5(1), b = 892.6(2), c = 1259.9(5) pm, ß = 90.29(4)°, space group 12Im, Z = 2; R l = 0.048 for 861 independent reflections. The resulting average distances in the nearly undistorted octahedra are C o -C = 189.8, C -N = 114.1, C s -N = 325.6 pm. The iron compound exhibits a cubic elpasolite type structure, a = 1105.2(1) pm, space group Fm 3m , Z = 4; R l = 0.040 for 127 independent reflections; F e -C = 193.4(6), N a -N = 247.7(8) pm. The orientation of the librating tetramethyl-ammonium group within the cages of the cobalt compound and the disorder of the monomethyl-ammonium cation around the special site (1/4, 1/4, 1/4) of the iron complex are discussed.
	Reference	Z. Naturforsch. 49b, 1373—1380 (1994); eingegangen am 31. März 1994
	Published	1994
	Keywords	Hexacyanometallates(III), Crystal Structure, Elpasolite
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	Identifier	ZNB-1994-49b-1373
	Volume	49

11	Author	F.-D Martin, Hk Müller-Buschbaum	Requires 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
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	Identifier	ZNB-1994-49b-1459
	Volume	49

12	Author	D. Frerichs, Hk Müller-Buschbaum	Requires 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
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	Identifier	ZNB-1994-49b-1463
	Volume	49

13	Author	Christian Robl, VolkerG. Öbner	Requires 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
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	Identifier	ZNB-1994-49b-1499
	Volume	49

14	Author	S. Mann, M. Jansen	Requires 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
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	Identifier	ZNB-1994-49b-1503
	Volume	49

15	Author	Oliver Heilmann, Hans-Dieter Hausen, Wolfgang Kaim	Requires 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
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	Identifier	ZNB-1994-49b-1554
	Volume	49

16	Author	M. Arkus Wieber, Stefan Lang, StefanRalph Rohse, Christian Habersack, Burschka	Requires cookie*
	Title	Synthese und Kristallstruktur von Triphenyltelluroniumsulfid Synthesis and Crystal Structure of Triphenyltelluroniumsulfide
	Abstract	The synthesis of triphenyltelluroniumsulfide (Ph3TeS)4 is described together with a NMR-spectroscopic characterization. The structure of the title compound was determined by single crystal X-ray diffraction. Crystals of triphenyltelluroniumsulfide are triclinic (space group P I) with the cell parameters a = 1178.0(3) pm. b = 1295.8(6) pm. c = 1298.7(4) pm, a = 77.67(3)°, ß = 82.18(2)°, y = 66.00(2)° (V = 1766(1) x 106 pm3) and Z = 2. The compound appears to form a step-like structure of two [Ph3TeS]2 units and crystallizes with two m ole cules of CH2C12 per unit cell.
	Reference	Z. Naturforsch. 49b, 1654—1658 (1994); eingegangen am 5. Mai 1994
	Published	1994
	Keywords	Triphenyltelluroniumsulfide, Synthesis, NMR Data, Crystal Structure, Secondary Bonding
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	Identifier	ZNB-1994-49b-1654
	Volume	49

17	Author	Z. Naturforsch	Requires cookie*
	Title	Die isoelektronischen Molekülkomplexe TiCl3(NPPh3) und TiCl3(OSiPh3)
	Abstract	The Isoelectronic M olecular C om plexes TiC l3(N P P h 3) and T iC l3(O SiPh3) Thilo R übenstahl, D o ro th ea W olff von G udenberg, F ra n k W eller, K u rt D ehnicke* TiCl3(NPPh3) and TiCl3(OSiPh3) have been prepared from titanium tetrachloride and Me3SiNPPh3 and HOSiPh3, respectively. Both complexes were characterized by IR spectrosco py and by crystal structure determmations. TiCl3(N PPhj): Space group R3, Z = 6, structure analysis with 959 observed unique reflec tions, R = 0.039. Lattice dimensions at -6 8 °C: a = b = 1370.5(7), c = 1845.9(9) pm. TiCl}(OSiPh3): Space group P2,/c, Z = 8, structure analysis with 4549 observed unique re flections, R = 0.049. Lattice dimensions at 19 °C: a = 2127.7(2), b = 947.2(1), c = 2136.8(1) pm, ß = 105.081(5)°. Both complexes form monomeric molecules in which the titanium atom is tetrahedrally coordinated by three chlorine atoms, the nitrogen atom of the phosphorone iminato ligand and the oxygen atom of the silyloxy group, respectively. The bond lengths TiN of 171.9(4) pm and TiO of 171.0(3) (in average) correspond to double bonds.
	Reference	(Z. Naturforsch. 49b, 15—20 [1994]; eingegangen am 7. September 1993)
	Published	1994
	Keywords	Monomerie Titanium Complexes, Synthesis, Crystal Structure
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	Identifier	ZNB-1994-49b-0015
	Volume	49

18	Author	Z. Naturforsch	Requires cookie*
	Title	Gold-Alkalimetallsysteme, III. Hochdrucksynthese und Kristallstruktur von Rb3Au7 [1]
	Abstract	G old-A lkali M etal-System s, III. H igh Pressure Synthesis and C rystal S tructure o f R b 3A u 7 [1] K laus-Jürgen Range*, G eorg H. G rosch, F ran z R au, U lrich K lem ent The intermetallic compound Rb3Au7 could be synthesized from the elements at 4 kbar, 700 °C in a modified Belt-type apparatus. The structure (Cmmm; a = 5.579(1), b = 13.267(5), c = 7.265(2) Ä; Z = 2; R = 0.035, Rw = 0,031) comprises three crystallographically independ ent Au atoms, arranged in layers along the c-axis. The shortest interatomic distances are A u -A u = 2.633Ä, A u -R b = 3.438Ä and R b -R b = 3.622Ä. Im System R ubidium -G old [2,3] sind bisher n u r die V erbindungen R b A u [4] und R b A u 5 [5,6] ein deutig nachgewiesen und strukturell c h a ra k te ri siert w orden. Die Existenz von R b A u 2 [2,3,7] ko n n te bisher nicht verifiziert werden. D ie h o m o logen V erbindungen N aA u 2 [8] und K A u 2 [9] sind Lavesphasen und kristallisieren im kubischen M gC u2-Typ bzw. im hexagonalen M g Z n 2-Typ. Bei unseren V ersuchen zur H ochdrucksynthese einer L avesphase R b A u 2 fanden wir nun eine bisher im System R b -A u unbekannte Phase d er Z u sam m ensetzung R b 3A u 7, über die im folgenden berich tet w ird.
	Reference	(Z. Naturforsch. 49b, 27—30 [1994]; eingegangen am 6. Juli 1993)
	Published	1994
	Keywords	Trirubidium Heptagold, High Pressure Synthesis, Crystal Structure
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	Identifier	ZNB-1994-49b-0027
	Volume	49

19	Author	Thom As Schleid, Falk Lissner	Requires 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
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	Identifier	ZNB-1994-49b-0340
	Volume	49

20	Author	Frank Weller, Fritjof Schmock, Kurt Dehnicke, Kurt Findeisen Bayer-Werk	Requires cookie*
	Title	Synthese, IR-Spektrum und Kristallstruktur von 1.3.5-Trichlortriazinium-hexachloroantimonat, [HC3N3C13]SbCl6 Synthesis, IR Spectrum and Crystal Structure of 1.3.5-Trichlortriazinium Hexachloroantim onate, [HC3N3Cl3]SbCl6
	Abstract	,3,5-Trichlortriazinium hexachloroantimonate has been prepared by the reaction of CCl2 = N-COCl with antimony pentachloride in boiling dichloromethane. The compound was characterized by IR spectroscopy and by a crystal structure determination. [HC3N3Cl3]SbCl6 crystallizes in the monoclinic space group P 2 Jn with four formula units per unit cell. 2503 observed unique reflections, R = 0.029. Lattice dimensions at 19 °C: a = 1314.1(1), b = 958.2(1), c = 1329.1(1) pm, ß = 117.113(5)°). The compound forms ion pairs via a linear N -H • • • Cl bridge, thus distorting the SbCl6~ ion from octahedral geometry. The C3N3 skeleton of the [HC3N3C13]+ ion is nearly planar, but the hydrogen atom lies about 30 pm out of this plane.
	Reference	Z. Naturforsch. 49b, 360—364 (1994); eingegangen am 3. November 1993 1.3.
	Published	1994
	Keywords	5-Trichlortriazinium Salt, Synthesis, IR Spectra, Crystal Structure 1
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	Identifier	ZNB-1994-49b-0360
	Volume	49

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