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  • Inorganic Chemistry  (3)
  • ACM25/26; ACM25/26_Northwest_2; DATE/TIME; DEPTH, water; MOOR; Mooring; Temperature, water; Temperature recorder, Brancker; WOCE; World Ocean Circulation Experiment
  • Air-sea interaction
  • Marine meteorology
  • 1990-1994  (3)
  • 1990  (3)
Collection
Keywords
Publisher
Years
  • 1990-1994  (3)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 580 (1990), S. 18-26 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal Structures of [ReCl4(PhC≡CPh)]2 · 2 CH2Cl2 and PPh4[ReOCl4]Single crystals of [ReCl4(PhC≡CPh)]2 · 2 CH2Cl2 were obtained by chilling dilute solutions of the solvate [ReCl4(PhC≡CPh)POCl3] in CH2Cl2. PPh4[ReOCl4] was formed by the reaction of the diphenyl acetylene complex [ReCl5(PhC≡CPh)] with PPh4Cl · H2O in CH2Cl2 solution.[ReCl4(PhC≡CPh)]2 · 2 CH2Cl2: space group P21/c, Z = 2, 2244 observed independent reflexions, R = 0.038. Lattice parameters (19°C): a = 987.2 pm; b = 1533.9 pm; c = 1193.8 pm; β = 90.17° The compound forms centrosymmetrical dimeric molecules with ReCl2Re bridges with Re—Cl distances of 241.2 and 267.6 pm. The longer Re—Cl bond is situated in trans-position to the equatorial, side-on coordinated diphenyl acetylene ligand with mean Re—C distances of 200 pm.PPh4[ReOCl4]: space group P4/n, Z = 2, 1487 observed, independent reflexions, R = 0.047. Lattice parameters (19°C): a = b = 1272.0 pm; c = 771.3 pm. The compound crystallizes in the AsPh4[RuNCl4] type; it consists of [ReOCl4]- anions and PPh4+ cations. The anions are tetragonal with C4v symmetry and bond lengths Re—O = 165.4 pm and Re—Cl = 232.6 pm; the bond angle OReCl is 106.7°.
    Notes: Einkristalle von [ReCl4(PhC≡CPh)]2 · 2 CH2Cl2 wurden aus verdünnten Lösungen des Solvats [ReCl4(PhC≡CPh)(POCl3)] in CH2Cl2 durch Abkühlen erhalten. PPh4[ReOCl4] entstand durch Umsetzung des Diphenylacetylenkomplexes [ReCl5(PhC≡CPh)] mit PPh4Cl · H2O in CH2Cl2-Lösung.[ReCl4(PhC≡CPh)]2 · 2 CH2Cl2: Raumgruppe P21/c, Z = 2, 2244 unabhängige beobachtete Reflexe, R = 3,8%. Gitterkonstanten (19°C): a = 987,2; b = 1533,9; c = 1193,8 pm; β = 90,17°. Die Verbindung bildet zentrosymmetrische dimere Moleküle mit ReCl2Re-Brücken mit Re—Cl-Abständen von 241,2 und 267,6 pm. Die lange ReCl-Bindung befindet sich in trans-Position zu dem äquatorial angeordneten, seitlich koordinierenden Diphenylacetylenliganden mit Re—C-Abständen von im Mittel 200 pm.PPh4[ReOCl4]: Raumgruppe P4/n, Z = 2, 1487 unabhängige beobachtete Reflexe, R = 4,7%. Gitterkonstanten (19°C): a = b = 1272,0; c = 771,3 pm. Die Verbindung kristallisiert im AsPh4[RuNCl4]-Typ; sie besteht aus PPh4+- und [ReOCl4]--Ionen. Die Anionen haben C4v-Symmetrie mit Abständen ReO = 165,4 pm und ReCl = 232,6 pm bei einem OReCl-Bindungswinkel von 106,7°.
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  • 2
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Syntheses, I.R. Spectra, and Crystal Structures of the Diphenylacetylene Complexes [WCl4(PhC≡CPh)(POCl3)] and [W2OCl6(PhC≡CPh)2] · 2 CCl4[WCl4(PhC≡CPh)(POCl3)] has been prepared by the reaction of [WCl4(PhC≡CPh)]2 with POCl3 in boiling CH2Cl2, forming a red-brown, moisture sensitive crystal powder. Partial hydrolysis in CCl4 solution leads to the μ-oxo-μ-dichloro complex [W2OCl6(PhC≡CPh)2] · 2 CCl4 as a by-product, which forms dark red single crystals. Both complexes were characterized by IR spectroscopy as well as by crystal structure determinations with X-ray methods.[WCl4(PhC≡CPh)(POCl3)]: Space group P21/c, Z = 4, 2568 observed unique reflexions, R = 0.036. Lattice dimensions at 19°C: a = 890.8, b = 1317.6, c = 1729.3 pm, β = 92.16°. The compound has a molecular structure in which the tungsten atom is surrounded by the acetylene carbon atoms of the diphenyl acetylene ligand, which is coordinated side-on, by four chlorine atoms and, in trans position to the WC2 group, by the oxygen atom of the POCl3 molecule.[W2OCl6(PhC≡CPh)2] · 2 CCl4: Space group P212121, Z = 4, 3907 observed unique reflexions, R = 0.033. Lattice dimensions at -70°C: a = 1132.4, b = 1577.1, c = 8231.1 pm. The compound forms chiral molecules in which the tungsten atoms are linked by a bent WOW bridge with WO bond lengths of 188 pm and 191 pm and a WOW angle of 114.3° and by two bent chlorine bridges. The acetylene carbon atoms of the side-on coordinated diphenyl acetylene ligands are situated in the cis-positions to the WO bonds. Two terminal chlorine atoms at each tungsten atom complete the considerably distorted octahedral coordination spheres.
    Notes: [WCl4(PhC≡CPh)(POCl3)] entsteht als rotbraunes, feuchtigkeitsempfindliches Kristallpulver aus [WCl4(PhC≡CPh)]2 und POCl3 in siedendem Dichlormethan. Partielle Hydrolyse in CCl4-Lösung führt zu dem μ-Oxo-μ-dichloro-Komplex [W2OCl6(PhC≡CPh)2]·2 CCl4, der in Form dunkelroter Kristalle als Nebenprodukt entsteht. Beide Komplexe werden durch ihre IR-Spektren und durch röntgenographische Strukturanalysen charakterisiert.[WCl4(PhC≡CPh)(POCl3)]: Raumgruppe P21/c, Z = 4, 2568 unabhängige beobachtete Reflexe, R = 3,6%. Gitterabmessungen bei 19°C: a = 890,8; b = 1317,6; c = 1729,3 pm, β = 92,16°. Die Verbindung hat eine Molekülstruktur, in der das Wolframatom verzerrt oktaedrisch von den Acetylen-C-Atomen des seitlich koordinierten Diphenylacetylenliganden, von vier Chloratomen und in trans-Position zur WC2-Gruppe von dem O-Atom des POCl3-Moleküls umgeben ist.[W2OCl6(PhC≡CPh)2] · 2 CCl4: Raumgruppe P212121, Z = 4, 3907 unabhängige beobachtete Reflexe, R = 3,3%. Gitterabmessungen bei -70°C: a = 1132,4; b = 1577,1; c = 2231,1 pm. Die Verbindung bildet chirale Moleküle, in denen die Wolframatome über eine gewinkelte WOW-Brücke mit WO-Abständen von 188 bzw. 191 pm bei einem WOW-Bindungswinkel von 114,3° und über zwei gewinkelte Chlorobrücken verknüpft sind. Die Acetylen-C-Atome der seitlich koordinierten Diphenylacetylenliganden befinden sich in den cis-Positionen zu den WO-Bindungen. Je zwei terminal gebundene Chloratome ergänzen die stark verzerrt oktaedrische Umgebung an den Wolframatomen.
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  • 3
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Reaction of Tin Tetrachloride with Hexakis(trimethylsilyl)-1,4-benzdiamidine. Crystal Structures of C6H4[C(NSiMe3)2SnCl3 · CH3CN]2 and [Na-benzo-15-crown-5]2SnCl6The bis-amidinato complex C6H4[C(NSiMe3)2SnCl3 · CH3CN]2 (1) has been prepared by the reaction of tin tetrachloride with hexakis(trimethylsilyl)-1,4-benzdiamidine in the presence of acetonitrile, forming colourless, moisture sensitive crystals, which easily release the coordinated acetonitrile in vacuo. With sodium fluoride 1 reacts in acetonitrile solution in the presence of benzo-15-crown-5 forming [Na-benzo-15-crown-5]2SnCl6 (2). 1 and 2 are characterized by IR spectroscopy as well as by X-ray structure determinations.C6H4[C(NSiMe3)2SnCl3 · CH3CN]2 (1). Space group P21/c, Z = 2, 1700 observed unique reflexions, R = 0.045. Lattice dimensions at 19°C: a = 818.6, b = 1 838.2, c = 1 484.1 pm, β = 96.58°. 1 forms monomeric centrosymmetric molecules with the amidinato groups in 1,4-position of the C6H4 ring. The tin atoms are sixfold coordinated by two nitrogen atoms of the Amidinato chelate (Sn—N 217.2, 215.9 pm), by three chlorine atoms and by the nitrogen atom of the Acetonitrile molecule (Sn—N 244.0 pm).[Na-Benzo-15-Krone-5]2SnCl6 (2): Space group P21/C, Z = 2, 2585 observed unique reflexions, R = .032. Lattice dimensions at 19°C: a = 963.1; b = 946.6; c = 2082.6 pm; β = 101,79°. 2 centrosymmetric Ion triple with the tin atom of the SnCl62- unit in the symmetry center. The sodium ions are sevenfold coordinated by five oxygen atoms of the crown ether molecule, as well as by two chlorine atoms of the SnCl62- ions with Na…Cl bond length of 300.4 and 304.6 pm, respectively.
    Notes: Der Amidinatokomplex C6H4[C(NSiMe3)2SnCl3 · CH3CN]2 (1) wurde durch Reaktion von Zinntetrachlorid mit Hexakis(trimethylsilyl)-1,4-benzdiamidin in Gegenwart von Acetonitril hergestellt. 1 bildet farblose, feuchtigkeitsempfindliche Kristalle, die im Vakuum das koordinierte Acetonitril leicht abgeben. Mit Natriumflorid reagiert 1 in Acetonitrillösung in Gegenwart von Benzo-15-Krone-5 unter Bildung von [Na-Benzo-15-Krone-5]2SnCl6 (2). 1 und 2 werden durch ihre IR-Spektren und durch röntgenographische Kristallstrukturanalysen charakterisiert.C6H4[C(NSiMe3)2SnCl3 · CH3CN]2 (1): Raumgruppe P21/c, Z = 2, 1700 beobachtete unabhängige Reflexe, R = 4,5%. Die Gitterkonstanten bei 19 °C: a = 818,6; b = 1 838,2; c = 1 484,1 pm; β = 96,58°. 1 bildet monomere, zentrosymmetrische Moleküle mit den Amidinatogruppen in 1,4-Stellung des C6H4-Ringes. Die Zinnatome sind sechsfach koordiniert durch die beiden N-Atome des Amidinatochelats (Sn—N 217,2; 215,9 pm), durch drei Chloratome und durch das N-Atom des Acetonitrilmoleküls (Sn—N 244,0 pm).[Na-Benzo-15-Krone-5]2SnCl6 (2): Raumgruppe P21/c, Z = 2, 2585 beobachtete unabhängige Reflexe, R = 3,2%. Die Gitterkonstanten bei 19°C: a = 963,1; b = 946,6; c = 2082,6 pm; ° = 101,79°. 2 bildet zentrosymmetrische Ionentripel mit dem Zinnatom des SnCl62--Ions auf dem Symmetriezentrum. Die Natriumionen sind siebenfach koordiniert durch die fünf O-Atome der Kronenethermoleküle und durch zwei Cl-Atome des SnCl62--Anions mit Na…Cl-Abständen von 300,4 bzw. 304,6 pm.
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