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  • 1980-1984  (4)
  • Inorganic Chemistry  (4)
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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 477 (1981), S. 101-107 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation, Crystal and Molecular Structure of 2 (C6H5)3PO · (COOH)22(C6H5)3PO · (COOH)2 crystallizes from a solution of oxalic acid and (C6H5)3PO in methanol. Crystal data: space group P21/c (monoclinic) with a = 907.4(2), b = 1035.4(3), c = 1797.9(8) pm, β = 75.20(1)° and Z = 2; d (calc./obs.) = 1.27/1.31 g cm-;3; Vcell = 1633.1 × 106 pm3. The structure was determined by direct methods from 3006 independent reflections and has been refined by full matrix least squares to R = 0.049. In the compound one molecule of trans-oxalic acid and two symmetrically dependent (C6H5)3PO units are linked by short O…H-O bridges distances and angles see above.
    Notes: 2(C6H5)3PO · (COOH)2 kristallisiert aus einer Lösung von Oxalsäure und (C6H5)3PO in Methanol. Kristalldaten: Raumgruppe P21/c (monoklin) mit a = 907,4(2), b = 1035,4(3), c = 1797,9(8) pm, β = 75,20(1)° und Z = 2; d (ber./gef.) = 1,27/1,31 g · cm-3; VZelle = 1633,1 · 106 pm3. Die Struktur wurde anhand von 3006 unabhängigen Reflexen direkt bestimmt und nach der Kleinsten-Quadrate-Methode (volle Matrix) bis zu einem R-Wert von 0,049 verfeinert. In der Verbindung ist ein Molekül trans-Oxalsäure mit zwei symmetrisch abhängigen (C6H5)3PO-Einheiten über kurze O…H-O-Brücken verknüpft. Abstände: P-O(1) 149,6(3); O(1)…O(2) 255,0(4); O(2)-C(19) 128,5(5); O(3)-C(19) 120,9(5) pm. Winkel: P-O(1)…O(2) 130,6(2)°;O(1)…O(2)-C(19) 116,2(2)°.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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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: Bismuth(III) Complexes of 3,4,5,6-Tetrahydropyrimidine-2(1H)-thione and Benzimidazole-2(3H)-thione. Crystal and Molecular Structure of Trichloro-tris(3,4,5,6-tetrahydropyrimidine-2(1H)-thione)bismuth(III)Bismuth(III) compounds BiX3 (X = Cl, Br, NO3) and 3,4,5,6-tetrahydropyrimidine-2(1H)-thione (THPT) or benzimidazole-2(3H)-thione (BIT) react in acid medium to give complexes BiX3 · 3 THPT and BiX3 · 4 BIT · 4 H2O, while Bi(ClO4)3 leads to Bi(ClO4)3 · 5 THPT and Bi(ClO4)3 · 5 BIT.BiCl3 · 3 THPT crystallizes monoclinic [space group P21/n; a = 1 241.8(5), b = 1 283.0(5), c = 1 420.4(5) pm, β = 84.45(5)°; Z = 4; d (calc) 1.96 g · cm-3; Vcell = 2252 · 106 pm3; structure determination from 2999 independent reflexions by the heavy atom method; refinement by full matrix least squares to R = 0.039], Bi is coordinated in a distorted octahedral way by three Cl [distances Bi—Cl: 266.9(5), 275.7(4), 278.4(4) pm] and by three THPT through S [Bi—S: 274.1(4), 277.9(4), 287.6(5) pm], however the 6s pair seems to be stereochemically insert. Angles (mean values): Cl—Bi—Cl 94.7(2)°, Cl—Bi—S 92.3(2)° and 168.7(1)°, S—Bi—S 80.0(1)°. Vibrational data of the solid compounds show the neutral ligands to coordinate in all complexes through S to Bi; in the cases X = NO, and C10, the data indicate the presence of covalent and ionic nitrate and perchlorate and also an ionic structure. In methanol solution the complexes are non-electrolytes (X = C1, Br), 1: l-electrolyte8 (X = NO3) or 1: 2-electrolytes (X = C104).
    Notes: Bismut(III)-Verbindungen BiX3 (X = Cl, Br, NO3) reagieren in saurem Milieu mit 3,4,5,6-Tetrahydropyrimidin-2(1H)-thion (THPT) bzw. Benzimidazol-2(3H)-thion (BIT) zu den Komplexen BiX3 · 3 THPT bzw. BiX3 · 4 BIT · 4 H2O, während Bi(ClO4)3 zu Bi(ClO4)3 · 5 THPT bzw. Bi(ClO4)3 · 5 BIT führt.BiCl3 · 3 THPT kristallisiert monoklin [Raumgruppe P21/n; a = 1 241,8(5), b = 1 283,0(5), c = 1 420,4(5) pm, β = 84,45(5)°; Z = 4; d (ber) 1,96 g · cm-3; VZelle = 2252 · 106 pm3; Strukturbestimmung anhand von 2999 unabhängigen Reflexen nach der Schweratommethode; Verfeinerung nach der Kleinste-Quadrate-Methode (volle Matrix) bis R = 0,039], Bi wird verzerrt oktaedrisch von drei Cl [Abstände Bi—Cl: 266,9(5), 275,7(4), 278,4(4) pm] und von drei THPT über S [Bi—S: 274,1(4), 277,9(4), 287,6(5) pm] koordiniert, jedoch scheint das 6s-Paar stereochemisch inert zu sein. Winkel (gemittelt): Cl—Bi—Cl 94,7(2)°, Cl—Bi—S 92,3(2)° und 168,7(1)°, S—Bi—S 80,0(1)°. Schwingungsspektroskopische Daten der festen Verbindungen zeigen, daß die Neutralliganden in allen Komplexen über S an Bi koordiniert sind; im Falle X = NO3 und ClO4 lassen sie auf Vorliegen von kovalent und von ionisch gebundenem Nitrat bzw. Perchlorat und damit ionische Struktur schließen. In methanolischer Lösung liegen die Komplexe als Nichtelektrolyte (X = Cl, Br), als 1:1-Elektrolyte (X = NO3) bzw. 1:2-Elektrolyte (X = ClO4) vor.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 485 (1982), S. 190-194 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation of Acetatolead(1V) and Acetatotin(1V) Manganese Pentacarbonyls by Acidolysis of (C6H5)4-n M[Mn(CO)5]n (M = Sn, Pb; n = 1, 2) with Acetic AcidBy acidolysis of (C6H5)4-nM[Mn(CO)5]n (M = Sn, Pb; n = 1, 2) with acetic acid no M—Mn bonds are broken, but M—C bonds. In this reaction (CH3COO)2M[Mn(CO)5]2 is formed from (C6H5)2M[Mn(CO)5]2, and (CH3COO)3SnMn(CO)5 and (CH3COO)2C6H5PbMn(CO)5 from (C6H5)3MMn-(CO)5. (CH3COO)2C6H5SnMn(CO)5 is prepared from Cl2C6H5SnMn(CO)5 and AgCH3COO. According to IR spectroscopic data the acetato ligands of the diacetato complexes are bidentate, while in (CH3COO)3SnMn(CO)5 bi- and monodentate carboxylate groups are present. For the central atoms Sn and Pb octahedral coordination is proposed.
    Notes: Bei der Acidolyse von (C6H5)4-nM[Mn(CO)5]n (M = Sn, Pb; n = 1, 2) mit Essigsäure werden nicht M—Mn-Bindungen, sondern M—C-Bindungen gespalten. Dabei entstehen (CH3COO)2M[Mn(CO)5]2 aus (C6H5)2M[Mn(CO)5]2 sowie (CH3COO)3SnMn(CO)5 bzw. (CH3COO)2-C6H5PbMn(CO)5 aus (C6H5)3MMn(CO)5. (CH3COO)2C6H5SnMn(CO)5 wird aus Cl2C6H5SnMn(CO)5 und AgCH3COO dargestellt. Auf Grund IR-spektroskopischer Daten sind die Acetatoliganden in den Diacetatokomplexen zweizähnig gebunden, während in (CH3COO)3SnMn(CO)5 zwei- und einzähnige Carboxylatgruppen vorliegen; für die Zentralatome Sn und Pb wird oktaedrische Koordination vorgeschlagen.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 471 (1980), S. 194-202 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Organolead and Organotin Derivatives of Mercaptoaminoacids and CysteaminReaction of tri- and diorganolead and -tin hydroxides and oxides with mercaptoaminoacids and cysteamine in CHCl3 or CHCl3/H2O allows the gentle preparation of the above compounds. The bonding between M and ligand indicated in the formula of the compounds, mainly the preferred bonding of M to S follows from vibrational spectra; proposals regarding the structure are made using spectral data. Ph3SnOH and penicillamine react to give monomeric Ph3SnSCMe2CH(NH2)COOSnPh3.
    Notes: Die Umsetzung von Tri- und Diorganoblei-und -zinnhydroxiden bzw. -oxiden mit Mercaptoaminosäuren sowie mit Cysteamin in CHCl3 bzw. CHCl3/H2O ermöglicht die schonende Darstellung von Ph3MSCH2CH(NH2)COOH, Ph3PbSCMe2CH(NH2)COOH, Ph3MSCH2CH2NH2, Me3SnSCR2′CH(NH2)COOH, Ph2M[SCR2′CH(NH2)COOH]2, Me2Sn[SCR2′CH(NH2)COOH]2, R2SnSCR2′CH(NH2)COO,Ph2MSCR2′CH(NH2)COO,Ph2M(SCH2CH2NH2)2 und Me2Sn(SCH2CH2NH2)2 (M=Pb, Sn; R′=H, Me; R=Me, Ph; Me=CH3; Ph=C6H5).Die in den Formeln der Verbindungen angezeigte Art der Bindung zwischen M und Ligand, insbesondere die bevorzugte Bindung von M an S, folgt aus den Schwingungsspektren, mit deren Hilfe auch Strukturvorschläge diskutiert werden. Ph3SnOH reagiert mit Penicillamin zu monomerem Ph3SnSCMe2CH(NH2)COOSnPh3.
    Additional Material: 3 Tab.
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