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1988[X]
41Author    Manfredo Hörner, Wolfgang Hiller, Joachim Strähle, GeorgeM. SheldrickRequires cookie*
 Title    Synthese, Eigenschaften und Kristallstruktur von (NH 4 )NbOBr 4 Synthesis, Properties and Crystal Structure of (NH 4 )NbOBr 4  
 Abstract    (NH 4)NbOBr 4 is obtained as air sensitive, light red crystals from NH 4 Br and NbBr 5 in a sealed glass ampoule at 420 °C, whereby the oxygen presumably originates from the glass surface. The compound crystallizes in the monoclinic space group C2/m with a — 1269.9(1), b = 1384.7(2). c = 773.0(2) pm, ß = 114.44(2)° and Z = 6. The structure is built up by NH 4 + cations and polymeric NbOBr 4 anions. Symmetrical linear oxo bridges with Nb-O = 199 pm connect square planar NbBr 4 units to form endless chains arranged in planes parallel (010). Neighbouring NbBr 4 units are in eclipsed as well as staggered orientations. The NH 4 + cations are located between the planes of parallel NbOBr 4 " chains. The vibrational frequencies of the IR and Raman spectrum are assigned. 
  Reference    Z. Naturforsch. 43b, 981—984 (1988); eingegangen am 25. März 1988 
  Published    1988 
  Keywords    Ammonium Tetrabromooxoniobate(V), Synthesis, Crystal Structure, Raman Spectra, IR Spectra 
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 Identifier    ZNB-1988-43b-0981 
 Volume    43 
42Author    Nils Wiberg, Edwin Kühnel, Klaus Schurz, Horst Borrmann, Arndt SimonRequires cookie*
 Title    Synthesen und Strukturen der sterisch überladenen Disiloxane und Disilazane (fBu 3 Si) 2 0, (fBu 3 Si) 2 NH, (fBu 3 SiNHSifBu 2 ) 2 0 [1] Syntheses and Structures of the Sterically Overloaded Disiloxanes and Disilazanes (/Bu 3 Si) 2 0, (fBu 3 Si) 2 NH, (rBu 3 SiNHSirBu 2 ) 2 0 [1]  
 Abstract    Hexa-terf-butyldisiloxane (rBu 3 Si) 2 0 (2), hexa-rerr-butyldisilazane (d3u 3 Si) 2 NH (3), and the disiloxane (rBu 3 SiNHSuBu 2) 2 0 (4) are prepared from bis(silyl)triazene /Bu 3 SiN=N-NHSirBu 3 by reaction with water (2) and by thermolysis (3), or from silanimine rBu 2 Si=NSirBu 3 by reaction with water (4). Structures of 2—4 have been determined by X-ray crystallography (for data cf. Tables II). As a consequence of the bulkiness of the silyl groups, the heavy atom frameworks SiOSi in 2 and 4 are linear, and the SiNSi angles in 3 (167 ± 2°) and 4 (157.1°) are comparatively large. 
  Reference    Z. Naturforsch. 43b, 1075—1086 (1988); eingegangen am 4. Mai 1988 
  Published    1988 
  Keywords    Syntheses, Molecular and Crystal Structures, Sterically Overloaded Disiloxanes and Disilazanes 
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 Identifier    ZNB-1988-43b-1075 
 Volume    43 
43Author    Jörg Adel, Frank Weller, Kurt DehnickeRequires cookie*
 Title    Synthese und Kristallstrukturen der spirocyclischen Polyselenido-Komplexe [Na-15-Krone-5] 2 [M(Se 4 ) 2 ] mit M = Zink, Cadmium und Quecksilber Sythesis and Crystal Structures of the Spirocyclic Polyselenido Complexes [Na-15-Crown-5] 2 [M(Se 4 ) 2 ] with M = Zink, Cadmium, and Mercury  
 Abstract    The title compounds have been prepared by reactions of the metal acetates of zink, cadmium, and mercury with ethanolic solutions of sodium polyselenides in the presence of 15-crown-5. They form dark red crystals, which were characterized by their IR specta as well as by X-ray crystal structure determinations. All complexes [Na-15-crown-5] 2 [M(Se 4) 2 ] with M = Zn (1), Cd (2), Hg (3) crystallize isotypically in the space group C2/c with 4 formula units per unit cell. In the anions [M(Se 4) 2 ] 2 ^ the metal atoms are coordinated tetrahedrally by four selenium atoms of two Se 4 2 ~ units, thus forming a spiro-bicyclus. The complex cations [Na-15-crown-5] + have a Na---Se contact of approximately 299 pm with two selenium atoms of a MSe 4 group, allowing formulation of triple ion species. 
  Reference    Z. Naturforsch. 43b, 1094—1100 (1988); eingegangen am 4. Mai 1988 
  Published    1988 
  Keywords    Polyselenide Complexes of Zink, Cadmium, Mercury, Syntheses, Crystal Structure 
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 Identifier    ZNB-1988-43b-1094 
 Volume    43 
44Author    Ekkehard Fluck, Peter Kuhm, Heinz RiffelRequires cookie*
 Title    [l,4,2]Diazaphospholidine [l,4,2]Diazaphospholidines  
 Abstract    Bis(diethylamino)phosphanylacetylen reacts with N.N'-dimethyl thiourea to give 2-diethyl-amino-l,4-dimethyl-3-methylene-[l,4,2]diazaphospholidine-5-thion (2) besides the [1.3.4]thi-azaphospholidine (1). The latter compound is converted into 2 by heating. Reaction of 2 with various reagents yields other members of the title compound class. All new compounds are characterized by some reactions and their NMR and IR spectra. In addition, the results of an X-ray structure analysis of 2-diethylamino-l ,4-dimethyl-3-methylene-2-thioxo-[l ,4.2]diazaphos-pholidine-5-thion (5) are reported. 
  Reference    Z. Naturforsch. 43b, 1481—1489 (1988); eingegangen am 17. Mai 1988 
  Published    1988 
  Keywords    [l, 4, 2]Diazaphospholidines, NMR Spectra, Crystal Structure 
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 Identifier    ZNB-1988-43b-1481 
 Volume    43 
45Author    Jörn Müller, Matthias Tschampel, Carl KrügerRequires cookie*
 Title    Rhodium-zentrierte Bildung eines Cyclobutenyl-Liganden und Umlagerung in einen Cyclopentadienyl-Komplex Rhodium-centered Formation of a Cyclobutenyl Ligand and Rearrangement to a Cyclopentadienyl Complex  
 Abstract    Cyclization of two diphenylacetylene molecules occurs if [(cod)RhCl] 2 (cod = 1.5-cyclooc-tadiene) is treated with methyllithium in the presence of tolane. The isolated (cod)Rh complex 2 contains an e*o-methyl-tetraphenylcyclobutenyl ligand and was characterized by X-ray diffraction analysis. Thermolysis of 2 in acetonitrile causes ring expansion of the methylcyclobutenyl unit with formation of the tretraphenylcyclopentadienyl complex 3 together with 3-methyl-tet-raphenylcyclobutene. Mechanistic aspects are discussed as well as spectroscopic data of the new compounds. 
  Reference    Z. Naturforsch. 43b, 1519—1523 (1988); eingegangen am 13. Juni 1988 
  Published    1988 
  Keywords    Methyltetraphenylcyclobutenyl Rhodium Complexes, Tetraphenylcyclopentadienyl Rhodium Complexes, NMR Spectra, Crystal Structure 
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 Identifier    ZNB-1988-43b-1519 
 Volume    43 
46Author    Dieter Fenske, Eberhard Böhm, Kurt Dehnicke, Joachim SträhleRequires cookie*
 Title    N-TrimethylsilyMminotriphenylphosphoran-Kupfer(II)-chlorid, (Me 3 SiNPPh 3 * CuCl 2 ]2 Synthese und Kristallstruktur N-Trimethylsilyl-iminotriphenylphosphorane Copper(II) Chloride, [Me 3 SiNPPh 3 * CuCl : ] 2 Synthesis and Crystal Structure  
 Abstract    The title compound has been prepared by the reaction of N-trimethylsilyl-iminotriphenylphos-phorane with copper(II) chloride in boiling CCl 4 /C 2 H 5 OH, and forms moisture sensitive crystals, which are green in transmittance and black in reflexion. [Me 3 SiNPPh 3 • CuCl 2 ] 2 was characterized by its IR spectrum as well as by a crystal structure determination (4197 observed, independent reflexions, R = 0.049). The lattice dimensions are at 20 °C: a = 1102.7. b = 1407.3. c = 1560.2 pm; ß = 94.27°; space group P2,/« with two formula units in the unit cell. The complex consists of centrosymmetric, dimeric molecules with a planar Cu 2 Cl 2 ring (Cu —CI bond lengths 229 and 231 pm). A terminally bonded CI atom (Cu —CI = 221 pm) and the N atom of the Me,SiNPPh 3 ligand (Cu —N = 198.5 pm) complete the coordination number four of the nearly planar surroundings of the Cu atoms. 
  Reference    (Z. Naturforsch. 43b, 1 [1988]; eingegangen am 4. September 1987) 
  Published    1988 
  Keywords    N-Trimethylsilyl-iminotriphenylphosphorane Copper(II) Chloride, Synthesis, IR Spectra, Crystal Structure 
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 Identifier    ZNB-1988-43b-0001 
 Volume    43 
47Author    Andrea Maurer, Dieter Fenske, Johannes Beck, Wolfgang Hiller, Joachim Strähle, Eberhard Böhm, Kurt DehnickeRequires cookie*
 Title    Kupfer(I)-chlorid-Addukte von Phosphoraniminen Die Kristallstrukturen von Ph 3 PNPh * CuCl und von 2,3-Bis(triphenylphosphoranylidenamino)maIeinsäure-N-methylimid- Kupfer(I)-chlorid Copper(I) Chloride Adducts of Phosphoranimines The Crystal Structures of Ph 3 PNPh-CuCl and of 2,3-Bis(triphenylphosphoranylideneamino)maleic Acid N-Methylimide Copper(I) Chloride  
 Abstract    The title compounds Ph,PNPhCuCl (1) and (Ph,P) 2 N : C 4 0 2 (NMe) CuCl (2) have been prepared by the reactions of CuCl with the corresponding phosphoranimines Ph 3 PNPh and 2.3-bis(triphenylphosphoranylideneamino)maleic acid N-methylimide, respectively. Both com-plexes were characterized by their IR spectra as well as by crystal structure determinations. PhiPNPh • CuCl (1): space group PI, Z = 4, 3639 independent observed reflexions, R = 0.038. Lattice dimensions (18 °C): a = 1047.6; b = 1251.5; c = 1755 pm; a = 103.43°; ß = 97.24°; y = 101.30°. The compound forms monomeric molecules; the asymmetric unit contains two crystallo-graphically independent molecules. The CuCl molecule is bonded via the N atom of the phos-phoranimine. Bond lengths: Cu—N = 189 pm; Cu —CI = 209 pm; bond angle N —Cu —CI = 177°. (PhiP),NiC 4 Oi(NMe) CuCl (2): space group Pbca, Z = 8, 5611 independent, observed reflex-ions, R = 0.069. Lattice dimensions (25 °C): a = 1224.3; b = 1962.5: c = 2994.0 pm. The compound forms monomeric molecules with the CuCl molecule bonded via one of the N atoms of the phosphoranimine groups. Bond lengths: Cu—N = 194 pm; Cu—CI = 212 pm; bond angle N—Cu —CI -175°. 
  Reference    (Z. Naturforsch. 43b, 5—11 [1988]; eingegangen am 4. September 1987) 
  Published    1988 
  Keywords    Copper(I) Chloride Adducts of Phosphoranimines, Synthesis, IR Spectra Crystal Structure 
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 Identifier    ZNB-1988-43b-0005 
 Volume    43 
48Author    W. Milius, A. RabenauRequires cookie*
 Title    The Crystal Structure of CuSe 2 Cl  
 Abstract    The crystal structure of CuSe2Cl has been deter-mined by single-crystal X-ray diffraction. CuSe2Cl crystallizes monoclinically in space group P2,/c with the lattice parameters a = 768.3(9) pm, b = 462.5(5) pm and c = 1455.2(3) pm, ß = 135.2(4)°, Z = 4. The structure could be shown to be isotypic with CuTe2Cl. 
  Reference    Z. Naturforsch. 43b, 243—244 (1988); received October 21 1987 
  Published    1988 
  Keywords    Copper Chalcogen Halides, Crystal Structure of CuSe2Cl, X-Ray 
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 Identifier    ZNB-1988-43b-0243_n 
 Volume    43 
49Author    Christa Pomp, Stefan Drüeke, Heinz-Josef Küppers, Karl Wieghardt, Carl Krüger, Bernhard Nuber, Johannes WeissRequires cookie*
 Title    Synthese  
 Abstract    von [LRe(CO) 3 ] + -Komplexen mit makrocyclischen Liganden Die Kristallstrukturen von 1,4,7-TriazacycIononan-tricarbonyl-rhenium(I)-thiocyanat und 1,4,7-Trithiacyclononan-tricarbonyl-rhenium(I) -bromid-hemihy drat Synthesis of [LRe(CO) 3 ]" Complexes with Macrocyclic Ligands The Crystal Structures of l,4,7-Triazacyclononane-tricarbonyl-rhenium(I) Thiocyanate and of l,4,7-Trithiacyclononane-tricarbonyl-rhenium(I) Bromide Hemihydrate The tridentate macrocyclic ligands 1,4,7-triazacyclononane, its thia analogue 1,4.7-trithia-cyclononane, l-oxa-4,7-diazacyclononane, and N,N',N"-trimethyl-l ,4,7-triazacyclononane react with Re(CO) 5 Br in dimethylformamide to yield colorless, air-stable [LRe(CO) 3 ]Br complexes (L = tridentate macrocycle). With Mn(CO) 5 Br only the cyclic amines react to af-ford yellow-orange [LMn(CO),]Br complexes whereas 1.4,7-trithiacyclononane does not give stable complexes of manganese. The crystal structures of [([9]aneN 3)Re(CO) 3 ](NCS) and [([9]aneS 3)Re(CO) 3 ]Br-1/2 H : 0 have been determined. The former crystallizes in the orthorhom-bic space group Pbca (a = 12/763(4), b = 12.662(5), c = 17.472(9) Ä; Z = 8); whereas the latter crystallizes in the monoclinic space group P2,/c (a = 9.444(1). b = 11.797(2), c = 28.095(3) Ä. ß = 90,86(1); Z = 8). 
  Reference    Z. Naturforsch. 43b, 299—305 (1988); eingegangen am 9. Oktober 1987 
  Published    1988 
  Keywords    Crystal Structure, 1, 4, 7-Triazacyclononane 1, 47-Trithiacyclononane Complexes 
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 Identifier    ZNB-1988-43b-0299 
 Volume    43 
50Author    Gerhard Cordier, Michael SteherRequires cookie*
 Title      
 Abstract    The compound Sr 5 Al 2 Sb 6 crystallizes in the orthorhombic system (space group Pnma (No. 62)) with the lattice constants: a = 1212.4(4) pm, b = 1034.1(4) pm, c = 1340.9(5) pm. AlSb 4 tetrahedra are connected via common edges and corners to chains. Every second terminal Sb atom of the chain is connected to another Sb atom, such that end-on Sb 2 groups and terminal Sb alternate. The compound Ba 5 In 2 Sb 6 crystallizes in the orthorhombic system (space group Pbam (No. 55)). The lattice constants are: a = 1530.7(6) pm, b = 1335.8(5) pm, c = 478.6(2) pm. In the structure, InSb 4 tetrahedra are connected via common corners and Sb 2 groups to form double chains. Both compounds are classified as Zintl phases. 
  Reference    Z. Naturforsch. 43b, 463—466 (1988); eingegangen am 10. Dezember 1987 
  Published    1988 
  Keywords    Strontium Antimonido Aluminates, Barium Antimonido Indates, Crystal Structure, Zintl Phase 
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 Identifier    ZNB-1988-43b-0463 
 Volume    43 
51Author    Yuzo Nishida, Naoko Oshino, Tadashi TokiiRequires cookie*
 Title    Crystal Structure and Magnetic Property of the Binuclear Manganese(III) Complex with /u-Acetate and Di-ji-Alkoxo Bridges  
 Abstract    Binuclear manganese(III) complex, [Mn : L(u-OCH 3)0<-CH 3 COO)(OHCH : ,)]ClO 4 was pre-pared and characterized in terms of crystal structure determination, magnetic measurement, and ESR spectroscopy, where H 3 L represents the Schiff base derived from salicylaldehvde and 1,5-diamino-3-pentanol. 
  Reference    Z. Naturforsch. 43b, 472—474 (1988); received November 9/December 17 1987 
  Published    1988 
  Keywords    Binuclear Manganese(III) Complex, Crystal Structure, ESR Spectra, Magnetic Property 
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 Identifier    ZNB-1988-43b-0472 
 Volume    43 
52Author    Wolfgang Hönle, Juliane Wolf, Hans Georg, SchneringRequires cookie*
 Title    Substituierte Heptaarsane(3)  
 Abstract    As 7 (Mme 3)3 (M = Si, Ge, Sn) mit Nortricyclenstruktur Substituted Heptaarsanes(3) As 7 (Mme 3) 3 (M = Si, Ge, Sn) with Nortricyelene Structure The heptaarsanes(3) As 7 (Mme 3) 3 (M = Si, Ge, Sn) with nortricyclene structure have been synthesized by heterogeneous and homogeneous reactions from K 3 As 7 and Rb 3 As 7 , respectively, with Mme 3 Cl. The crystal structures have been determined. The compounds are isotypic and crystallize in unit cells of R3 symmetry, containing pairs of enantiomers. The bond lengths d(As—As) in the nortricyclene skeleton are nearly uneffected by the substituents and show the sequence typical for covalent nortricyclenes: d(basal) = 244.3 pm > d(basal-equatorial) = 242.7 pm > d(equatorial-apical) = 240.7 pm (mean values). The spread-off of the Mme, sub-stituents decreases as going from P 7 to As 7 skeletons as well as with increasing size of M. 
  Reference    Z. Naturforsch. 43b, 219—223 (1988); eingegangen am 26. Oktober 1987 
  Published    1988 
  Keywords    Heptaarsa-nortricyclene, Crystal Structure, Silyl-, Germyl-and Stannyl-Substituted Heptaarsanes(3) 
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 Identifier    ZNB-1988-43b-0219 
 Volume    43 
53Author    Wolfgang Saak, Detlev Haase, Siegfried PohlRequires cookie*
 Title    Darstellung, Reaktionen und Kristallstrukturen von (Me 3 NCH 2 Ph) 2 Fe 2 I 6 und Fe 2 l4(SPPh 3 ) 2 * PhMe (Ph = C 6 H 5 , Me = CH 3 ) Preparation, Reactions, and Crystal Structure of (Me 3 NCH 2 Ph) 2 Fe 2 I 6 and Fe 2 I 4 (SPPh 3 ) 2 -PhMe (Ph = C 6 H 5 , Me = CH 3 )  
  Reference    Z. Naturforsch. 43b, 289—294 (1988); eingegangen am 23. September/6. November 1987 
  Published    1988 
  Keywords    Dinuclear Iron(II) Complexes, Iodoferrate, Phosphin Sulfide Complex of Iron(II), Synthesis, Crystal Structure 
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 Identifier    ZNB-1988-43b-0289 
 Volume    43 
54Author    Hans-U Hummel, Hermann MeskeRequires cookie*
 Title    Über Verbindungen subvalenter Hauptgruppenmetallkationen mit Dithiolaten, 1. Mitteilung. Das dimorphe Blei(II)-l,l-dicyanoethylen-2,2-dithiolat: Darstellung und Kristallstrukturen Compounds of Subvalent Main Group Metal Cations with Dithiolates, 1. Contribution. Dimorphie Lead(II) l,l-Dicyanoethylene-2,2-dithiolate: Preparation and Crystal Structures  
 Abstract    By reaction of Pb(CH,COO) 2 -3 H 2 0 with Na 2 S 2 C=C(CN) 2 -3 H 2 0 in water, a-PbS 2 C=C(CN) 2 is obtained. Hydrothermal conditions give small crystals of the a-and /3-phase. The crystal structures of the two phases have been determined. The a-phase is monoclinic with space group P2Jn and a = 11.879(5), b = 12.027(5), c = 4.655(1) Ä, ß = 96.94(3)°, Z = 4. The compound contains PbS 2 C 4 N 2 molecules with Pb—S = 2.66 and 2.90 Ä. Two molecules are connected to dimers with Pb-Pb = 4.44 Ä. The /3-phase also crystallizes monoclinically, space group C2/c, a = 9.613(1), b = 13.579(1), c -16.052(2) Ä, ß = 98.36°, and Z = 12. There are two independent lead positions, with the metals integrated in PbS 2 C = C(CN) 2 groups with a stereochemically active lone-pair, and dimers Pb 2 (S 2 C 4 N 2) 2 with Pb-Pb distance = 3.80 Ä. 
  Reference    Z. Naturforsch. 43b, 389—398 (1988); eingegangen am 21. Dezember 1987 
  Published    1988 
  Keywords    Lead(II) l, l-Dicyanoethylene-2, 2-dithiolate, a-and /3-Phase, Synthesis, Crystal Structure 
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 Identifier    ZNB-1988-43b-0389 
 Volume    43 
55Author    Edmund Hartmann, Joachim SträhleRequires cookie*
 Title    Synthese und Kristallstruktur von [l,3-Bis(4-ethoxyphenyl)triazenido]pyridino-silber(I), einem dimeren Komplex mit kurzem Silber-Silber-Kontakt Synthesis and Crystal Structure of [l,3-Bis(4-ethoxyphenyl)triazenido]pyridino Silver(I), a Dimeric Complex with a Short Silver-Silver Contact  
  Reference    Z. Naturforsch. 43b, 525—528 (1988); eingegangen am 22. Dezember 1987 
  Published    1988 
  Keywords    Bis[l, 3-Bis(4-ethoxyphenyl)triazenido-pyridino Silver(I)], Synthesis, Crystal Structure 
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 Identifier    ZNB-1988-43b-0525 
 Volume    43 
56Author    Gerhard Fritz, Hans-Werner Schneider, Wolfgang Hönle, Hans Georg, SchneringRequires cookie*
 Title    Zur Chemie und Strukturchemie von Phosphiden und Polyphosphiden, 49 [1] Bildung und Struktur des Henicosaphosphids [Li(12-Krone-4) 2 ]3P2i(THF) 2 Chemistry and Structural Chemistry of Phosphides and Polyphosphides, 49 [1] Formation and Structure of the Henicosaphosphide [Li(12-Crown-4) 2 ] 3 P 21 (THF) 2  
 Abstract    The reaction of Li 3 P 7 (DME) 3 with crown ether 12-crown-4 and (CHT)Cr(CO) 3 yields a reddish oil, from which red crystals of [Li(12-crown-4) 2 ] 3 P 21 (THF) 2 (1), red crystals of Li 2 P 16 (12-crown-4) x (THF) 2 as well as a not yet identified yellow substance separates. From this mixture crystals of 1 could be isolated. [Li(12-crown-4),] 3 P,,(THF), (1) crystallizes in the space group P2,/a with a = 3021.1(6) pm, b = 1901.5(4) pm, c = 1603.0(4) pm, ß = 95.98(3)° and Z = 4 formula units in the unit cell. The structure is characterized by isolated ^[P 2 I 3 ~] trianions and Li(12-crown-4) 2 cations. The trianion has approximately the symmetry mm2. The bond distances d(P-P) range from 213.9 pm to 226.8 pm and are differentiated by their function in the skeleton. The bond angles /3(P-P-P) are in the range 86.1° to 107.7° and image clearly the influence of the repulsion of the non-bonded electron pairs of the strained anion. The curvature of the trianion is approx. 0.8 nm" 1 and is three times larger than the curvature evaluated from structural models. 
  Reference    Z. Naturforsch. 43b, 561—566 (1988); eingegangen am 15. Januar 1988 
  Published    1988 
  Keywords    Henicosaphosphide Anion Crystal Structure, Molecular and Polymer Trianion, Heptaphospha-Nortricyclene, Heptaphospha-Norbornane 
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 Identifier    ZNB-1988-43b-0561 
 Volume    43 
57Author    PaulG. Maué, Dieter FenskeRequires cookie*
 Title    Zur Reaktion von [Cp 2 TiCl 2 ] und [CpTiC! 3 ] mit E(SiMe 3 ) 2 (E = S, Se) Die Kristallstrukturen von [Cp 3 Ti 2 S 2 Cl], [Cp 4 Ti 2 S 2 Cl 2 ], [Cp 3 Ti 2 Se 2 CI] und [Cp4Ti 4 Se 7 0] Reaction of [Cp 2 TiCl 2 ] and [CpTiCl 3 ] with E(SiMe 3 ) 2 (E = S. Se) The Crystal Structures of [Cp 3 Ti 2 S 2 Cl], [Cp 3 Ti 2 S 2 Cl 2 ], [Cp 3 Ti 2 Se 2 Cl] and [Cp 4 Ti 4 Se 7 0]  
 Abstract    The reaction of [Cp 2 TiCl 2 ] with E(SiMe 3) 2 leads to dinuclear Ti complexes. In [Cp 3 Ti 2 S 2 Cl] (1) and [Cp 3 Ti 2 Se 2 Cl] (3) two // 2 -S(Se) ligands bridge the Cp 2 Ti and CpTiCl units, respectively in contrast to these, [Cp 4 Ti 2 S 2 Cl 2 ] (2) contains a // 2 V-S 2 bridge connecting two Cp : TiCl fragments. A similar reaction of [CpTiCl 3 ] with Se(SiMe 3) 2 leads to the tetranuclear cluster [Cp 4 Ti 4 Se 7 0] (4). 4 consists of a Ti 4 -tetrahedron which encloses an oxygen atom. 
  Reference    Z. Naturforsch. 43b, 1213—1218 (1988); eingegangen am 11. Mai 1988 
  Published    1988 
  Keywords    X-Ray, Crystal Structure Dinuclear Ti-S and Ti-Se Complexes, Tetranuclear Ti Cluster 
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 Identifier    ZNB-1988-43b-1213 
 Volume    43 
58Author    Karin Völp, Gerhard Baum, Werner Massa, Kurt DehnickeRequires cookie*
 Title    [Na-15-Krone-5][MoF 2 Cl2(N 3 S2)]; Synthese und Kristallstruktur [Na-15-Crown-5][MoF 2 Cl 2 (N 3 S 2 )]; Synthesis and Crystal Structure  
 Abstract    The cyclothiazeno complex [Na-15-crown-5][MoF 2 Cl 2 (N 3 S 2)] has been prepared by the reaction of sodium fluoride with [MOC1 3 (N 3 S 2)] 2 in acetonitrile solution in the presence of [15-crown-5], The compound was characterized by its IR spectrum as well as by an X-ray structure determina-tion (3560 observed independent reflexions, R = 0.039). Crystal data: monoclinic, P2,//?, Z = 4; a = 1044.8(2); b = 1513.7(2); c = 1363.8(3) pm; ß = 104.33(2)°. The structure consists of ion pairs, in which the sodium atom is seven-coordinated by the oxygen atoms of the crown ether molecule and by the two fluorine ligands of the [MOF 2 C1 2 (N 3 S 2)]~ unit. The molybdenum atom is a member of the planar MON 3 S 2 ring; the fluorine atoms are coordinated in trans position to the nitrogen atoms of the cyclothiazeno ring. 
  Reference    Z. Naturforsch. 43b, 1235—1239 (1988); eingegangen am 7. Juni 1988 
  Published    1988 
  Keywords    Fluoro-Chloro-Cyclothiazeno Complex of Molybdenum(VI), Synthesis, IR Spectra, Crystal Structure 
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 Identifier    ZNB-1988-43b-1235 
 Volume    43 
59Author    Evamarie Hey, Christina Ergezinger, Kurt DehnickeRequires cookie*
 Title    Die Reaktion von N  
 Abstract    ,N,N'-Tris(trimethylsilyI)benzamidin mit Kupfer(II)chlorid. Kristallstruktur von {C 6 H 5 -C(NSiMe 3) 2 CuCl [C 6 H 5 -C(NSiMe 3)(NHSiMe 3)]} The Reaction of N,N,N'-Tris(trimethylsilyl)benzamidine with Copper(II) Chloride. Crystal Structure of {C 6 H 5 —C(NSiMe 3)->CuCl • [C 6 H 5 -C(NSiMe 3)(NHSiMe 3)]} 
  Reference    Z. Naturforsch. 43b, 1679—1682 (1988); eingegangen am 27. Juni 1988 
  Published    1988 
  Keywords    N, N'-Bis(trimethylsilyl)benzamidinato-copper Chloride-N, N'-bis(trimethylsilyl)benzamidine Adduct, Synthesis, IR Spectrum, Crystal Structure 
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 Identifier    ZNB-1988-43b-1679_n 
 Volume    43 
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