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'X ray' in keywords Facet Publication Year 1992 [X]
Facet section ZfN Section B:Volume 047 [X]

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1	Author	Z. Naturforsch	Requires cookie*
	Title	Übergangsmetall-substituierte Diphosphene, XXIV [ 1 ]
	Abstract	Cheletrope [1 +4]-Cycloaddition von Azodicarbonsäureestern und -amiden an das metallsubstituierte Diphosphen (i75-C5M e5)(CO)2F e -P = P -Mes* (Mes* = 2,4,6-Bu3C6H 2). Struktur von (i/5-C5M e5)(CO)2F e -P (= P -M e s )\|N (C 0 2E t)N = C (0 E t)Ö \| Transition M etal Substituted Diphosphenes, XXIV [1] Cheletropic [1+4] Cycloaddition of Azodicarboxylic Esters and Amides to the Metal Substituted Diphosphene (^5-C5Me5)(CO)2F e -P = P -M e s * (Mes* = 2,4,6/Bu3C6H 2). Structure o f (^5-C5M e5)(CO)2F e -P(= P -M es)[N (C 0 2Et)N = C (0 E t)0 ]. L othar Weber, Holger Bastian, Achim Müller [2] und H artm ut Bögge [2] The diphosphenyl complex (>75-C 5M e5XCO)2F e -P = P -M e s * (1) (M es* = 2,4,6rBu3C6H2)
	Reference	Z. Naturforsch. 47b, 231—2 (1992); eingegangen am 9. Juli/26. September 1991
	Published	1992
	Keywords	Diphosphene, Cycloaddition, Azodicarboxylates, X-Ray
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	Identifier	ZNB-1992-47b-0231
	Volume	47

2	Author	PeterG. Jones, M. Artina, Näveke Und Arm, Blaschette	Requires cookie*
	Title	Polysulfonylamine, XXXI [1] Kristallstruktur von (1-Trichlormethylthio- 4-dimethylaminopyridinium)dimesylamid bei -9 5 °C Polysulfonylamines, XXXI [1] Crystal Structure o f 1-Trichloromethylthio- 4-dimethylaminopyridinium Dimesylamide at -9 5 °C
	Abstract	The crystal structure o f the title com pound was determined at -9 5 °C. It crystallizes in space group P 1 with a = 577.5(3), b = 820.2(3), c = 1916.6(8) pm, a = 83.34(2), ß = 82.83(2), y = 83.61(2)° and Z = 2. The final R value was 0.034 for 3019 unique observed reflections. The presence o f aggregates o f four ions (two cations and two an ions) in the solid state is observed, with short cat-ion-anion contacts Sn — 0 (290 pm) and Cl --O (298 pm). The bond lengths o f the 4-dimethyl-aminopyridinium moiety o f the cation suggest a semiquinoid resonance form with a double bond to the nitrogen o f the dim ethylam ino group and two localized double bonds in the ring. The ring, the dimethylamino group (except H atom s) and the Sn atom are coplanar. The S " -N bond length is 170.3 pm, the N -S " -C angle 99.6°. The S ° -C bond is approximately perpendicular to the ring plane.
	Reference	Z. Naturforsch. 47b, 441—4 (1992); eingegangen am 17. September 1991
	Published	1992
	Keywords	Pyridinium, Dimesylamide, Polysulfonylamine, X-Ray
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	Identifier	ZNB-1992-47b-0441_n
	Volume	47

3	Author	M. Ustafa Ate, HansJoachim Breunig, KlausH. Ebert, Rose Kaller, M. Artin Dräger, Ulrich Behrens	Requires cookie*
	Title	Strukturen von Tetramesityldistiban (Mes4Sb2) und Trimesitylstiban (M es3Sb) Structures of Tetramesityldistibane (Mes4Sb2) and Trimesitylstibane (Mes3Sb)
	Abstract	The crystal structure of tetramesityldistibane consists of isolated Mes4Sb2 molecules in the trans conformation (average distance S b -C 219 pm, distance S b -S b 284.9(1) pm, angles SbC2 9 7 °-100°, Sb2C 92°-109°). In the structure o f trimesitylstibane there are stacks of isolated tri gonal pyramidal Mes,Sb molecules (average distance S b -C 218 pm, angles SbC-, 104 -106°).
	Reference	Z. Naturforsch. 47b, 503—508 (1992); eingegangen am 18. O ktober 1991
	Published	1992
	Keywords	Tetramesityldistibane, Trimesitylstibane, X-Ray
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	Identifier	ZNB-1992-47b-0503
	Volume	47

4	Author	Oligophosphine Ligands, Xxxiv, Lutz Dahlenburg	Requires cookie*
	Title	Oligophosphan-Liganden, XXXIV** Organoplatin(II)-Komplexe mit (+ )-(l *S)-l,2-Bis(diphenylphosphino)- 1 -phenylethan-Koordination
	Abstract	O rganoplatinum (II) Complexes with (+)-(1 5)-1,2-Bis(diphenylphosphino)-1-phenylethane Coordination A ndrea Saare Reaction o f (C8H 12)P t(C H 2C M e3)2 with (+)-(l S)-Ph2P CH (Ph)C H 2P Ph2, S-PHEPHO S, gave (5'-PH EPH O S)Pt(C H2C M e3)2 (1). Cleavage o f one o f the P t -C bonds o f this com pound with m ethanolic HC1 yielded (5-PH EPH O S)PtC l(CH 2C M e3) (2) which could be converted to (5-PH EPH O S)PtH (C H 2C M e3) (3) by treatment with N a[H B (O M e)3], The com plexes so ob tained were characterized by N M R spectroscopy (preferentially 31P) as well as by an X-ray structure analysis performed on the dineopentyl derivative 1. While thermal generation o f (S'-PHEPHOS)Pt(O) from 3 in the presence o f H C = C C (0)0 C M e 3 produced the alkyne co
	Reference	Z. Naturforsch. 47b, 247 (1992); eingegangen am 24. Juli 1991
	Published	1992
	Keywords	Chiral Bis(phosphine) Ligand, Platinum Complexes, X -Ray, Thermolysis
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	TEI-XML for	default:Reihe_B/47/ZNB-1992-47b-0247.pdf
	Identifier	ZNB-1992-47b-0247
	Volume	47

5	Author	ThomasD. Smith, PeterG. Jones, Reinhard Schmutzler	Requires cookie*
	Title	The Role of Elimination Processes in the Reaction of Substituted Ureas and Thioureas with Chlorides of Mono-and Bifunctional Acids
	Reference	Z. Naturforsch. 47b, 526—532 (1992); received August 29 1991
	Published	1992
	Keywords	Reactive Halides, Substituted Ureas, Elimination Reactions, X-Ray
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	Identifier	ZNB-1992-47b-0526
	Volume	47

6	Author	Andreas Ansorge, DavidJ. Brauer, Hans Bürger, F. Rank Dörrenbach, Burkhard Krum, G. Ottfried Pawelke	Requires cookie*
	Title	Complexes of (CF3)3B with Sterically Crowded Amines. Unexpected Side Products from the Trifluoromethylation of Cl2BN(f-Bu)(Bz). Crystal and Molecular Structures of (CF3)3BN H(CH 2)6, H O (CF3)2BCH(Ph)NH(f-Bu)(Bz) and Ph(CF3)2BCHN(f-Bu)(Bz)
	Abstract	Trifluoromethylation o f C12B N (C H 2)6, Cl2B(tmp), tmp = 2,2,6,6-tetramethylpiperidino, and CLBN(r-Bu)(Bz) with three equivalents o f C F3Br/P(NEt2)3 yields the amine complexes (C F 3)3B N H (C H 2)6 (1), (C F 3)3B • N H 2CM e2(CH 2)2CH C M e2 (2) and (C F 3)3B N H 2(Bz) (3). The preparation o f 3 was accompanied by formation o f three unexpected trifluoro-methylboron derivatives X (C F 3)2BCH(Ph)NH(r-Bu)(Bz) (D), X = Br (4), Cl (5), and (Ph)(C F3)2BCH N(/-Bu)(Bz) (6), the latter being formed from 4 by HBr elim ination and rear rangement. Reaction o f 4 with H 20 , EtOH, H C O N M e2 and M e3SnH yielded D, X = OH (7), EtO (8), HCOO (9), and (Ph)(CF3)2BCH2N H (/-Bu)(Bz) (10), respectively. The structures o f 1, 6 and 7 have been determined by X-ray diffraction analysis.
	Reference	Z. Naturforsch. 47b, 772—7 (1992); received November 6 1991
	Published	1992
	Keywords	Trifluoromethylation, Borane-Amine Complexes, X-Ray
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	Identifier	ZNB-1992-47b-0772
	Volume	47

7	Author	Dieter Sellmann+, MarcusH. Annakam, Falk Knoch, M. Atthias, Moll	Requires cookie*
	Title	Übergangsmetallkomplexe mit Schwefelliganden, XCII*. Oxidation von Thiolat-Amin-zu Schiffbase-Eisen(II)
	Abstract	Komplexen. Röntgenstrukturanalyse und Reaktivität von [Fe('N2S2')]2 (N2S2'2" = Glyoxal-bis(2 -mercaptoanil)(2 -)) Transition M etal Complexes with Sulfur Ligands, XCII*. Oxidation o f Thiolate Amine to Schiff Base Iron(II) Complexes. X-Ray Structure Analysis and Reactivity of [Fe('N2S2')]2 ('N 2S2'2_ = Glyoxal-bis(2-mercaptoanil)(2-)) Oxidation o f [Fe(CO)2('N 2H2S2')] (1) ('N 2H2S2'2_ = l,2-ethanediam ine-N ,N '-bis(2-benzene-thiolate)(2—)) gave insoluble [Fe('N2S2')]2 (2) ('N2S2'2_ = glyoxal-bis(2-m ercaptoanil)(2-)). Dinuclear, thiolato-bridged 2 was characterized by single crystal X-ray structure analysis. It does not react with CO or H 2, but yields bis or mono adducts with PR 3 (R = M e, rc-Bu, Cy).
	Reference	Z. Naturforsch. 47b, 1545—1550 (1992); eingegangen am 17. April 1992
	Published	1992
	Keywords	Thiolate Am ine, Iron(II) Complexes, Oxidation, X-Ray
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	Identifier	ZNB-1992-47b-1545
	Volume	47

8	Author	Peer Berges, Volker Mansei, G. Ünter Klar	Requires cookie*
	Title	Elementorganische Verbindungen mit ö-Phenylenresten, XXIII [1]
	Abstract	2.3.6.9.10.13-Hexam ethoxy-5,7,12,14-tetrathia-5,7,12,14-tetrahydropentacen -2.3-Dichlor-5,6-dicyan-l,4-benzochinon (1/2) Organometalloidal Com pounds with o-Phenylene Substituents, XXIII [1] 2.3.6.9.10.13-Hexamethoxy-5,7,12,14-tetrathia-5,7,12,14-tetrahydropentacene -2.3-Dichloro-5,6-dicyano-1,4-benzoquinone (1 /2) The title com pound is prepared by com bining hot solutions o f the components. X-ray anal ysis shows hexam ethoxytetrathiatetrahydropentacene to act as a bifunctional donor, each o f its dimethoxybis(organylthio)benzene units being in contact with a dichlorodicyanoquinone molecule. In the crystal stacks o f the type D A 2 ,D A 2, with an alternating arrangement o f d o nor and acceptor molecules are formed. In the com plex the donor has a m -conform ation (boat form) in contrast to its pure form where the /ra/w-conformation (chair form) is found.
	Reference	Z. Naturforsch. 47b, 211 (1992); eingegangen am 26. August 1991
	Published	1992
	Keywords	Hexamethoxytetrathiatetrahydropentacene, Bifunctional D onor, D ichlorodicyanoquinone, Crystal Structure, X-Ray
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	Identifier	ZNB-1992-47b-0211
	Volume	47

9	Author	R. Castro, M.L D Urá, J.A G Arcía-Vázquez, J. Rom, A. Sousa, A. C. Astiñeiras, W. Hiller, J. Strähle	Requires cookie*
	Title	Direct Electrochemical Synthesis of Pyrimidine-2-thionato Complexes of Zinc(II) and Cadmium(II): The Crystal Structure of (l,10-Phenanthroline)bis(pyrimidine-2-thionato)cadmium(II)
	Abstract	Zn(pymt)2 and Cd(pymt)2 complexes have been obtained by electrochemical oxidation o f anodic zinc or cadmium in acetonitrile solutions o f pyrimidine-2-thione (Hpymt). W hen 2,2'-bipyridine (bipy) or 1,10-phenanthroline (phen) was added to the electrochemical cell, the ad-ducts [M (pymt)2(bipy)], or [M(pymt)2(phen)] (M = Zn or Cd) were obtained. Crystals o f [Cd(pymt)2phen] are orthorhombic, with a = 9.882(2), b = 12.491(1), c = 16.513(2)A, space group P 2,2,2, and Z = 4. The cadmium atom has distorted octahedral geometry, and one ni trogen atom o f each pyrimidine-2-thiolato ligand is not coordinated.
	Reference	Z. Naturforsch. 47b, 1067 (1992); received January 27 1992
	Published	1992
	Keywords	X -Ray, Cadmium Complexes, Pyrimidine-2-thione, Zinc Complexes
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	Identifier	ZNB-1992-47b-1067
	Volume	47

10	Author	Hans Schum, Gert Adm, PaulT. Beurskensb	Requires cookie*
	Title	Zum Koordinationsverhalten von Alkinen gegenüber dem [C5H5(P(OCH3)3)2Fe]+-Fragment: Bildung und Struktur carbonylfreier Halbsandwichkomplexe mit Alkin-und Vinylidenliganden Coordination Properties o f Alkynes towards the [C5H 5Fe(P(O C H 3)3)2]+ Fragment: Form ation and Structure o f Carbonylfree Halfsandwich Complexes with Alkyne and Vinylidene Ligands
	Abstract	The alkyne containing halfsandwich complexes [C5H 5(P(O CH 3)3)2Fe(HC = CC6H 5)]PF6 (Ilia) and [C5H 5(P (0C H 3)3)2Fe(C H 30 2CC = C C 0 2C H 3)]PF6 (Illb) are accessible by thermal acetonitrile substitution from [C5H 5(P(OCH3)3)2Fe(N C C H 3)]PF6 (I) in the presence o f the al kyne. U pon standing in solution, Ilia isomerizes to give the isomeric phenylvinylidene com plex [C5H 5(P(O CH 3)3)2Fe(C = C(C6H5)H)]PF6 (IV). The spectroscopic data are presented to gether with a discussion o f the X-ray structure determinations o f III b and IV.
	Reference	Z. Naturforsch. 47b, 1125—1133 (1992); eingegangen am 22. Januar 1992
	Published	1992
	Keywords	C yclopentadienyliron-Phosphite Complexes, Alkyne Complexes, Alkyne-Vinylidene Isomerisation, X-Ray
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	Identifier	ZNB-1992-47b-1125
	Volume	47

11	Author	JörgN. Euhausen+, Karl-Ludwig Stork, ElisabethP. Otthoff, W. Olfgang, Tremel	Requires cookie*
	Title	Synthese und Struktur von Nb0 89Fe0 93Te2 und Ta0,77Fe0990Te2 Synthesis and Structure of N b0 89Fe093Te2 and Ta077Fe090Te2
	Abstract	N b0g9Fe093Te2 and T a0 77Fe0 90Te2 were prepared by chemical transport reactions. The crys tal structures of both com pounds were determined using X-ray single crystal methods. The structures of the layer com pounds N b0g9Fe093Te2 (P mna, Z = 2, a = 7.951(1) Ä, b = 7.241(1) Ä, c = 6.233(1) Ä) and T a077Fe0 90Te2 (P mna, Z = 2, a = 7.890(2) Ä, b = 7.252(2) Ä, c = 6.192(1) Ä) are based on a hexagonal close packing of Te atoms. Approximately one-half of the octahedral holes in this packing are occupied by N b (Ta) atoms, about one-quarter of the tetrahedral holes are occupied by Fe atoms. The relationship to the NiAs structure type is discussed.
	Reference	Z. Naturforsch. 47b, 1203—1212 (1992); eingegangen am 21. April 1992
	Published	1992
	Keywords	Synthesis, X-Ray, M etal-Rich Layer Compounds, Early Transition Metal Tellurides
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	Identifier	ZNB-1992-47b-1203
	Volume	47

12	Author	Harald Maelger, Falk Olbrich, Jürgen Kopf, Dirk Abein, Erwin Weiss	Requires cookie*
	Title	Synthese und Struktur der Basenaddukte von Kupfer(I)-Halogeniden mit Dimethylsulfid und Tetrahydrothiophen Synthesis and Crystal Structure of Lewis Base Adducts of Copper(I)-Halides with Dimethylsulfide and Tetrahydrothiophene
	Abstract	Copper complexes o f the general formula [(CuX)a(L)J" with L = tetrahydrothiophene (THT) or dimethylsulfide (D M S) and X = Cl, Br or I are formed by direct reaction o f copper(I)halides with the corresponding ligands. All com pounds have been characterized by
	Reference	Z. Naturforsch. 47b, 1276—1280 (1992); eingegangen am 20. Februar 1992
	Published	1992
	Keywords	X-Ray, Lewis Base Adducts, Copper(I)-Halides, Thioethers, Synthesis
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	Identifier	ZNB-1992-47b-1276
	Volume	47

13	Author	G. Ottfried Pawelke, Ralph Dammei, Wolfgang Poll	Requires cookie*
	Title	Darstellung von Difluormethanimin F2C = N H und F2C = N D durch Hydrolyse von CF3NCO Preparation of Difluoromethanimine F 2C = NH and F 2C = ND by Hydrolyses of C F 3NCO
	Abstract	The title com pounds have been prepared by controlled hydrolysis o f C F 3NCO in N E t3. Their 13C, 19F and 'H N M R spectra are reported and their IR gas and IR matrix spectra are discussed in terms o f a normal coordinate analysis. The photoelectron spectrum o f F2C = NH is compared with those o f F2C = N F and H 2C = N H revealing a strong fluoro effect. In the solid state F2C = N H is aggregated to infinite zig-zag chains by N • • • H hydrogen bonding.
	Reference	Z. Naturforsch. 47b, 351 (1992); eingegangen am 17. September 1991
	Published	1992
	Keywords	D ifluoromethanimine, N M R Spectra, Vibrational Spectra, Photoelectron Spectra, X-Ray
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	Identifier	ZNB-1992-47b-0351
	Volume	47

14	Author	Ursula Bentrup	Requires cookie*
	Title	Über die thermische Zersetzung von N 2H6[CrF5(H20)] und die neue Verbindung N2H6CrF5
	Abstract	Thermal decomposition of N 2H 6[CrF5(H 20)] has been investigated by thermoanalytical, X-ray and IR spectroscopic methods. U nder quasi-isobaric conditions the decomposition takes place in several steps. The intermediate N 2H 6C rF 5 has been found which crystallizes monoclinically with a = 555.0 pm, b = 1084.6 pm, c = 777.0 pm,/? = 91.76°. N 2H 6C rF 5 decom poses via an am orphous intermediate to give pure rhomboedrical C rF 3 as the final product. One of the intermediate has been identified as chrom ium fluoride am moniate C rF 3-0.4 N H 3. No hydrolysis reactions have been observed.
	Reference	Z. Naturforsch. 47b, 957—961 (1992); eingegangen am 6. Februar 1992
	Published	1992
	Keywords	Hydrazinium Pentafluorochrom ates(III), Fluorochrom ates(III), Thermal Decomposition, IR Spectra, X-Ray
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	Identifier	ZNB-1992-47b-0957
	Volume	47

15	Author	AndreasG. Rohm, Ann, Jürgen Riede, Hubert Schmidbaur	Requires cookie*
	Title	Gold(I) Complexes of Secondary and Tertiary Amines. Crystal Structure of Triphenylphosphineaurio(I)quinuclidinium Tetrafluoroborate
	Abstract	The secondary amine piperidine and the tertiary amine quinuclidine (l-azabicyclo[2.2.2]-octane) were reacted in TH F with one equivalent of triphenylphosphinegold(I) tetrafluoro borate, [Ph3PAu]+ BF4", to give the m onoaurated ammonium salts of formula [R"NHp_")AuPPh3]+ BF4~ (n = 2, 3). The compounds were obtained as crystalline solids in good yields, and were characterized by IR and N M R spectroscopy as well as mass spectrom etry and elemental analysis. The crystal structure of the quinuclidinium salt was determined (space group Pbca, Z = 8). The analysis shows independent formula units with no intermolec ular Au---Au contacts. The A u (I)-N bond (2.11(1) Ä) is significantly longer than the average value found in poly-aurated ammonium salts.
	Reference	Z. Naturforsch. 47b, 1255—1260 (1992); received June 4 1992
	Published	1992
	Keywords	Gold(I)-N itrogen Bond, Secondary Amine, Tertiary Amine, Quinuclidine, X-Ray
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	Identifier	ZNB-1992-47b-1255
	Volume	47

16	Author	C. Hristian, Robl, Stephanie Hentschel	Requires cookie*
	Title	Unendliche Y2(H2O)10[C6(COO)6]-Ketten in Y2[C6(COO)6] * 14H20
	Abstract	Infinite Chains o f Y2(H2O)10[C6(COO)6] in Y 2[C6(COO)6] • 14H20 Colourless monoclinic single crystals of Y ^C ^C O O)^ • 14H20 were grown in aqueous silica gel (space group P 2 Jn, a = 847.5(1), b = 923.4(2), c = 1632.0(3) pm, ß = 100.33(1)°, Z = 2, 223 param eters, 1784 reflections, Rg = 0.0357). Y 3+ is coordinated by 5 water molecules and 3 oxygen atom s o f the mellitate anion in a dodecahedral fashion. Y 3+ and [C6(COO)6]6-ions are linked by coordinative bonds, yielding infinite chains o f com position Y 2(H 2O)10[C6(COO)6] extending parallel to [100], Hydrogen bonds connect adjacent chains.
	Reference	Z. Naturforsch. 47b, 1561—15 (1992); eingegangen am 5. M ärz 1992
	Published	1992
	Keywords	Y ttrium Mellitate, X-Ray, Chain Structure, Hydrogen Bonding, Differential Thermal Analysis
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	Identifier	ZNB-1992-47b-1561
	Volume	47