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'X ray' in keywords Facet Publication Year 1993 [X]

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1	Author	K. Urt Merzweiler, Ludwig Brands, Jürgen Spohn	Requires cookie*
	Title	Neue In2P2-Vierringe
	Abstract	Synthese und Kristallstrukturen von [{iPrIn(//-fBu2P)Cl}2] und [{Me3SiCH2In(/i-fBu2P)Cl}2l New Four-M em bered In2P2 Rings. Snythesis and Crystal Structures of [{/PrIn(//-/Bu2P)Cl}2] and [~{Me3SiCH2In(//-/Bu2P)Cl}2] The reaction of organoindium halides R InC l2 with /Bu2PSiMe3 leads to compounds of the type [{RIn(jU-rBu2P)Cl}2] (R = /P r : 1, M e3SiCH2: 2). According to the crystal structure deter minations 1 and 2 contain planar In7P, rings. The In atoms are coordinated to two bridging /Bu,P groups, a terminal alkyl group and a term inal
	Reference	Z. Naturforsch. 48b, 1315—1320 (1993); eingegangen am 29. M ärz 1993
	Published	1993
	Keywords	Indium, Phosphorus, X-Ray
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	Identifier	ZNB-1993-48b-1315
	Volume	48

2	Author	RostislavD. Lampeka, Zam Ira, D. Uzakbergenova, VictorV. Skopenko	Requires cookie*
	Title	Spectroscopic and X-Ray Investigation of Cobalt(III) Complexes with 2-Oximinocarboxylic Acids
	Abstract	Mixed complexes of Co(III) with 2-oximinopropionic (H 2A) or 2-oximino-3-phenylpropionic (H 2B) acid and different amine (imidazole, benzimidazole, pyridine, yS-picoline, y-picoline) are reported. Characterization of the complexes was based upon ele mental analysis, conductivity and JR, 'H N M R, and electronic absorption spectra, and X-ray diffraction analysis. The organic ligands behave as 0 ,N donors via the carboxyl oxygen and the oxime nitrogen atoms. A trans-octahedral structure has been assigned to the bis(2-oximino-carboxylato)bis(am ine)cobalt(III) on the basis of 'H N M R data. The crystal and molecular structures of the complexes rra«5-[bis(2-oximinopropionato)bis-(imidazole)]-(I) and ^ • a«5'-[bis(2-oximinopropionato)bis(pyridine)]cobalt(III) (II) were deter mined. I crystallizes in space group P 2/« with a = 14.167(2), b = 8.774(_1), c = 14.785(2)Ä, ß = 113.37(1)°, Z = 4, Dca)c = 1.568 g e m '3. II crystallizes in space group P 1 with a = 9.122(2), b = 10.038(2), c = 11.759(2) A, a = 69.95(1)°, ß = 67.47(2)°, y = 69.49(2)°, Z = 2, Dcalc = 1.547 g-cm~3. The structures were refined to unweighted R factors of 0.036 and 0.028, respec tively. The coordination sphere around Co is pseudo-octahedral with the 2-oxim inopropionato ligands occupying four equatorial positions, and the amines in axial po sitions.
	Reference	Z. Naturforsch. 48b, 409—417 (1993); received November 2 1992
	Published	1993
	Keywords	Cobalt, Oximiocarboxylic Acid, Amine, X-Ray
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	TEI-XML for	default:Reihe_B/48/ZNB-1993-48b-0409.pdf
	Identifier	ZNB-1993-48b-0409
	Volume	48

3	Author	JohannK. Lessmann, Helmut Rupa, Lackner, Karen Schmidt-Bäse, GeorgeM. Sheldrick	Requires cookie*
	Title	Holger
	Abstract	The isolation o f Juglorubin (2) from cultures o f Streptomyces spp., which produce a series o f other hydroxynaphthoquinones, is described. 2 is a unique, unusually condensed ionic color
	Reference	Z. Naturforsch. 48b, 672 (1993); eingegangen am 21. Dezember 1992
	Published	1993
	Keywords	Antibiotics, Juglomycins, X -Ray, N M R Spectra
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	TEI-XML for	default:Reihe_B/48/ZNB-1993-48b-0672.pdf
	Identifier	ZNB-1993-48b-0672
	Volume	48

4	Author	ThomasG. Meyer, PeterG. Jones, Reinhard Schmutzler	Requires cookie*
	Title	Darstellung neuer Monofluorphosphine und einiger ihrer Übergangsmetallkomplexe; Einkristall-Röntgenstrukturanalyse eines Platin(II)-Komplexes Preparation of New M onofluorophosphines and Some o f their Transition Metal Complexes; Single Crystal X-Ray Diffraction Study o f a Platinum (II) Complex
	Abstract	The reaction of lithiated precursors with PC12F led to a num ber of monofluorophosphines, including the known di-/e>7-butylmonofluorophosphine, 1. Bis(phenylethinyl)monofluoro-phosphine (2) was accessible only via this route (the classical method of synthesizing 2 by chlorine/fluorine exchange is impossible, because the corresponding chlorophosphine is un known). Bis(2-methoxyphenyl)fluorophosphine (5) was prepared via the organolithium /PCl2F route. The N M R results for 5 thus prepared were inconsistent with previous reports, implying that the previously reported synthesis o f 5 is in error. From 5 a m -dichloroplatinum (II) com plex (6) was synthesized and subjected to a single crystal X-ray structure analysis, confirming the expected planar coordination. From bis(2,3-dimethoxynaphthyl)monofluoro-phosphine (7) a rhodium(I) (8) and an iron(0)tetracarbonyl complex (9) were prepared. An iron(0)tetracarbonyl complex (11) was synthesized from bis(9-anthryl)monofluorophosphine (10) which was found to be stable to redox disproportionation.
	Reference	Z. Naturforsch. 48b, 875—885 (1993); eingegangen am 16. Februar 1993
	Published	1993
	Keywords	Dichlorofluorophosphine, M onofluorophosphines, Transition Metal Complexes, X-Ray
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	TEI-XML for	default:Reihe_B/48/ZNB-1993-48b-0875.pdf
	Identifier	ZNB-1993-48b-0875
	Volume	48

5	Author	Vadim Pavlenko, Vladimir Kokozay, Olga Babich	Requires cookie*
	Title	Direct Synthesis of Tetranuclear Complexes of Copper(II) with /i4-Bridging Oxygen
	Abstract	The direct synthesis of a num ber complexes with general composition Cu4OCl6 «(CH 3)2NH-raSolv, where n = 4, m = 0 -2 and Solv = C H 3OH, DMSO, is reported. It is shown by X-ray structure investigation, that in Cu4OCl6-4 (C H 3)2N H the copper atoms are linked by //4-oxygen and //2-chlorine bridging atoms, while molecules of (CH3)2NH are at tached to the metal atoms via nitrogen ones.
	Reference	Z. Naturforsch. 48b, 1321—1324 (1993); received April 22 1993
	Published	1993
	Keywords	Direct Synthesis, Copper(II) Complexes, X-Ray
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	TEI-XML for	default:Reihe_B/48/ZNB-1993-48b-1321.pdf
	Identifier	ZNB-1993-48b-1321
	Volume	48

6	Author	Dieter Seilmann, Helge Friedrich, Falk Knoch	Requires cookie*
	Title	Transition Metal Complexes with Sulfur Ligands, XCIX
	Abstract	Form ation and Structure of [Fe('S4')]4. A Rem arkable Tetram erization of Homochiral [Fe('S4')] Complex Fragments ('S4'2-= l,2-Bis(2-m ercaptophenylthio)ethane(2-)) In MeOH/THF solution, Fe(II) ions and the tetradentate thioether-thiolate 'S4'2"([l,2-Bis(2-mercaptophenylthio)ethane(2-)]) slowly form the tetrameric [Fe('S4')]4 1. The crystal structure of 1 THF -2MeOH was determined by X-ray structure analysis. Chiral 1 crystallizes as a pair of enantiomers each of which consist of four homochiral [Fe('S4')] fragments bridged via /i2-and //3-S(thiolato) donors; stereochemical aspects o f the enantiospecific tetramerization of [Fe('S4')] fragments are discussed. In strong polar solvents such as dimethylformamide, dis sociation of [Fe('S4')]4 into [Fe('S4')]2 fragments is indicated by the formation o f [Fe(CO)('S4')]2 upon reaction with CO.
	Reference	Z. Naturforsch. 48b, 1675—1680 (1993); eingegangen am 9. Juli 1993
	Published	1993
	Keywords	Iron Sulfur Complex, Chirality, X-Ray
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	Identifier	ZNB-1993-48b-1675
	Volume	48

7	Author	Herrn Prof, Dr, J. Otto, Scherer	Requires cookie*
	Title	Übergangsmetall-substituierte Acylphosphane und Phosphaalkene, XIX [1]
	Abstract	Synthese und Strukturbestimmung von l-Metallo-l,2-dihydrophospheten (jj5-C5Me5XCO)2M -P C H (E)-C (E)= C -NMe2 (M = Fe, Ru; E = C 0 2Me, CN) Transition Metal Substituted Acylphosphanes and Phosphaalkenes, XIX [1] Synthesis and Structure Determ ination of l-M etallo-l,2-dihydrophosphetes (^5-C5M e5)(CO)2M -P C H (E)-C (E) = C -N M e 2 (M = Fe, Ru; E = C 0 2 Me, CN) L othar Weber* 3, O laf Kam inski3, H ans-Georg Stammler3, Beate Neumann3, Vadim D. R om anenkob The metallo-phosphaalkenes (/75-C5Me5)(CO)2M -P = C (N R 2)2 (4a,b, 5) result from the reac tion of the corresponding bromo compounds (/75-C5Me5)(CO)2MBr with Me3Si-P = C (N R 2)2. The complexes 4a and 5a are cleanly converted into the l-metallo-l,2-dihydrophosphetes (//5-C5Me5)(CO)2M -PCH(E)-C(E) = C -NM e2 (lO a -c) (M = Fe, Ru; E = C 0 2Me, CN) by treatment with equimolar amounts of dimethyl fumarate or fumarodinitrile, respectively. The products 4a,b, 5 and lO a -c have been characterized by elemental analysis as well as by spec troscopic data (IR, 'H, 13C, 3IP NM R, MS). The molecular structures o f 4a and 10a have been determined by single crystal X-ray analysis.
	Reference	Z. Naturforsch. 48b, 1784—1794 (1993); eingegangen am 23. Juni 1993
	Published	1993
	Keywords	Phosphaalkenes, Metallo-l, 2-dihydrophosphetes, X-Ray
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	Identifier	ZNB-1993-48b-1784
	Volume	48

8	Author	Jörg Münzenberg, HerbertW. Roesky, M. Athias Noltemeyer, Susanne Besser, Regine Herbst-Irmer	Requires cookie*
	Title	Synthese und struktureller Vergleich einiger TeIlur(IV)-Iminate Syntheses and Structural Com parison of Some Tellurium(IV) Iminates
	Abstract	T e -N compounds with Ph;SN and Ph2CN ligands were synthesized by treating TeCl4, TeF4, and ArTeCl3 (Ar = p-M eO C6H4) with the corresponding silylated ligand precursors 1 and 5. The l25Te N M R spectra of the com pounds Cl3TeN SPh2 2, Cl2Te(NSPh2)2 3, ArTe(Cl2)NSPh2 4, Cl2Te(N CPh2)2 6, F2Te(N CPh2)2 7 and ArTe(Cl2)N C Ph2 8 have been deter mined. The X-ray structures of the com pounds 2 -Pyridin, 3 and 8 show Cl-bridged dimers in the solid state, while 6 and 7*0.5 MeCN are monomeric. In the diphenylsulfiminates 2-Pyridin and 3 short T e -N bond distances are found.
	Reference	Z. Naturforsch. 48b, 199—208 (1993); eingegangen am 3. September 1992
	Published	1993
	Keywords	Diphenylsulfiminates, Diphenylketiminates, X-Ray, , 25Te N M R Spectra
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	TEI-XML for	default:Reihe_B/48/ZNB-1993-48b-0199.pdf
	Identifier	ZNB-1993-48b-0199
	Volume	48

9	Author	Ion Neda, Michael Farkens, Axel Fischer, PeterG. Jones, R. Einhard Schmutzler	Requires cookie*
	Title	Zur Chemie der l,3,5-Triaza-2-phosphinan-4,6-dione, Teil V* Darstellung der Phosphoryl(III)(A4P)-und Thiophosphoryl(III)(A4P)-Derivate der l,3,5-Triaza-2-phosphinan-4,6-dione. Umsetzungen mit Ketonen
	Abstract	Chemistry of the l,3,5-Triaza-2-phosphinane-4,6-diones, Part V Synthesis of Phosphoryl(III)(^4P) and Thiophosphoryl(III)(/!.4P) Derivatives of 1.3.5-Triaza-2-phosphinane-4,6-diones. Reactions with Ketones 18. M ärz 1993 1.3.5-Trimethyl-Substituted l,3,5-Triaza-2-oxo-and 1.3.5-Triaza-2-thio-2/.4-phosphinane-4,
	Reference	Z. Naturforsch. 48b, 860—866 (1993); eingegangen am
	Published	1993
	Keywords	6-diones, N M R Spectra, Mass Spectra, X-Ray
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	TEI-XML for	default:Reihe_B/48/ZNB-1993-48b-0860.pdf
	Identifier	ZNB-1993-48b-0860
	Volume	48

10	Author	Michel Mégnamisi-Bélombé, Irene Jokwi, Emmanuel Ngameni, R. Obert Roux, Bernhard Nuber	Requires cookie*
	Title	X-Ray Structure, Electrochemical and Electronic Spectroscopic Examination of Cobaloximatic Acid: Hydro-fraw5-diiodobis(ethanedioximato(l-)-N,N')cobaltate(III). Extended Intermolecular O-H-O Bridging in the Solid
	Abstract	The structure of the cobaloximatic acid, hydro-rrans-diiodobis(ethanedioximato(l-)-N,N')cobaltate(III), has been determined by X-ray diffraction. Crystal data: C4H7CoI2N40 4, Mr = 487.87; monoclinic space group P2xta (C\|h); a -10.795(7), b = 9.003(7), c = 11.881(6) Ä; ß = 97.29(6)°; V = 1145.35 Ä3; Z = 4; dc = 2.83 Mg n r3. Rw (R) = 3.6 (3.9)% for 3064 observed independent reflections and 148 parameters. The coordination geometry around Com is a dis torted (4 + 2) octahedron of four chelating equatorial N atoms and two apical iodides. The compound is most adequately formulated as a monovalent strong acid: H(Co(GH)2I2) (GH_ = ethanedioximate or glyoximate). The H atoms of the oxime groups are involved in the usual mframolecular, as well as in much stronger internlolecular O -H -O bridgings (O — Ointramol = 2.613-2.631, O — Ointervo, = 2.454 Ä). The "acidic" H atom of each molecule participates in the intennolecular bridging which extends throughout the structure, and propagates nearly parallel to the [101] crystallographic direction. The redox properties of the present compound were examined by cyclic voltammetry in acetonitrile solution at room tem perature. Redox waves attributed to the reduction of Co11 1 and to the oxidation of T were ob served, along with a wave which may be linked to the reduction of the "acidic" proton.
	Reference	Z. Naturforsch. 48b, 1360—1364 (1993); received May 17 1993
	Published	1993
	Keywords	X-Ray, Cobaloximatic Acid, Extended Hydrogen Bridging, Cyclic Voltammetry
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	Identifier	ZNB-1993-48b-1360
	Volume	48

11	Author	KatteshV. Katti, PrahladR. Ad, CharlesL. Singh3c, KavitaK. Barnesb, Katti3, Karel Kopickad, AlanR. Ketringd, WynnA. Volkertc	Requires cookie*
	Title	Organometallic Phosphinimines as Building Blocks for Potential New Radiopharmaceuticals. Synthesis, Structure and Reactivity of Ph3P=NH2+R e 0 4~
	Abstract	of the organometallic phosphinimine Ph3P=N-SiMe3 (1), with aqueous R e0 4~ and 188R e 0 4~ yield the ion pairs Ph3P=NH2+M 04~ (M = Re (2); 188Re (4)). The ion pairs under go dehydration upon heating to produce the neutral Re(VII) species: Ph3P = N -M 03 (M = Re (3); 188Re (5)). The solid state structure of Ph3P=NH2+R e04~ (2) shows the presence of hy drogen bonding between the iminato hydrogen and the rhenium oxo center. The relevance of such reactions for the design of new radiopharmaceuticals is discussed.
	Reference	Z. Naturforsch. 48b, 1381—1385 (1993); received January 15/June 181993
	Published	1993
	Keywords	Phosphinimines, Radiopharmaceuticals, X-Ray, Nuclear Medicine, Radio-Rhenium Reactions
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	TEI-XML for	default:Reihe_B/48/ZNB-1993-48b-1381.pdf
	Identifier	ZNB-1993-48b-1381
	Volume	48

12	Author	Das, Ekkehard Flucka, G. Ernot, Heckm Annb, Karsten Langeb	Requires cookie*
	Title
	Abstract	',3 ,3 -T etrakis(dimethy lamino)-1 A5,3 A5-diphosphetium-Kation The 1,1 ',3,3'-Tetrakis(dimethylamino)-l/.5,3/l5-diphosphetium Cation
	Reference	Z. Naturforsch. 48b, 1149—1150 (1993); eingegangen am 26. Februar 1993
	Published	1993
	Keywords	Ä5-l, 3-D iphosphetium C ation, N M R Spectra, X-Ray
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	Identifier	ZNB-1993-48b-1149_n
	Volume	48

13	Author	Max Herberhold, Guo-Xin Jin, ArnoldL. Rheingold	Requires cookie*
	Title	Sulfurization and Selenization of the Halfsandwich Nitrosylmetal Complexes CpM(CO)2NO (M = Cr, Mo) and CpM(NO)I2 (M = Mo, W)
	Abstract	The photo-induced decarbonylation o f CpCr(CO)2NO in acetonitrile solution in the presence o f excess sulfur leads to the cjW o-pentasulfido complex CpCr(NO)(S5) (1 a), while in
	Reference	Z. Naturforsch. 48b, 1488—1498 (1993); received June 8 1993
	Published	1993
	Keywords	Sulfido Metal Complexes, Selenido M etal Complexes, Halfsandwich Nitrosylmetal Com pounds, X-Ray
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	Identifier	ZNB-1993-48b-1488
	Volume	48