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  • 1970-1974  (6)
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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 105 (1972), S. 1032-1043 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Directed Synthesis of Sulfinato-O and -S Complexes of some Transition Metals, IV Linkage Isomerism in Sulfinato Complexes of Iron(II), Cobalt(II) and Nickel(II)Treatment of the sulfinato-O.O' complexes 1a-c with 2.2′-bipyridyl produces the ionic tris complexes 4a-c according to equation (4). The action of acetone results in the elimination of only 1 mole of 2.2′-bipyridyl from 4a-c to yield the linkage-isomeric sulfinato complexes of iron, cobalt, and nickel (3aO-cO and 3aS-cS) according to equation (5). 3aS can also be prepared in pyridine solution by the reaction of 1a or 2a with 2.2′-bipyridyl according to equations (2) and (3). In pyridine at 115° the O-isomers 3aO and 3cO are converted irreversibly into the S-isomers 3aS and 3cS according to equation (6). 4a is transformed via 3aO to the sulfinato-O.O' complex 2a if it is treated with acetone for a longer time. According to this result equation (1) is reversible from 2a via 3aO to 4a for M = Fe. The linkage isomers 3aO-cO and 3aS-cS are characterized on the basis of their i.r., electronic and Mössbauer spectra as well as by magnetochemical investigations.
    Notes: Durch Einwirkung von 2.2′-Bipyridyl auf die Sulfinato-O.O'-Komplexe 1a-c erhält man gemäß Gl. (4) die ionogenen Tris-Komplexe 4a-c. Mit Aceton läßt sich daraus gezielt 1 Mol 2.2′-Bipyridyl abspalten, wodurch entsprechend Gl. (5) die bindungsisomeren Sulfinato-Komplexe des Eisens, Kobalts und Nickels 3aO-cO und 3aS-cS zugänglich sind. 3aS bildet sich auch bei der Umsetzung von 1a oder 2a mit 2.2′-Bipyridyl gemäß Gl. (2) und (3) in Pyridin. Die O-Isomeren 3aO und 3cO werden in Pyridin bei 115° entsprechend Gl. (6) irreversibel in die S-Isomeren 3aS und 3cS übergeführt. Speziell 4a geht bei längerer Einwirkung von Aceton über 3aO in den Sulfinato-O.O'-Komplex 2a über. Gl. (1) läßt sich demnach für M = Fe von 2a über 3aO zu 4a reversibel formulieren. Die Bindungsisomeren 3aO-cO und 3aS-cS werden an Hand ihrer IR-, Elektronen- und Mössbauer-Spektren sowie durch magnetochemische Untersuchungen charakterisiert.
    Additional Material: 7 Tab.
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  • 2
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Directed Synthesis of Sulfinato-O and -S Complexes of some Transition Metals, VII. Sulfinato Complexes of Chromium(II), Manganese(II), Iron(II), Cobalt(II) and Nickel(II) with Mono- and Bidentate Nitrogen Ligands.The hitherto unknown, pseudooctahedral configurated bis(organosulfinato-O,O')dipyridine compounds of manganese(II), iron(II), cobalt(II) and nickel(II) 5a, b and 6a-8a are obtained by the reaction of the complexes (p-R-C6h4SO2)2M(OH2)2 1a, b and 2a-4a with pyridine according to equation (1). Linkage or stereo isomers cannot be detected.  -  White (p-CH3C6H4SO2)2Cr(OH2)2 (9) reacts with 2 moles of 2,2′-bipyridyl in water according to equation (2) to form the sulfinato-O complex 10, the corresponding manganese compound 1a adds only 1 mole of 2,2′-bipyridyl according to equation (3), yielding the sulfinato complex 11O,O'. In the case of 9 other solvents are not leading to linkage isomers. In contrast to this the sulfinato complex 11S, being linkage and structural isomeric to 11O,O' is obtained from 1a and 2,2′-bipyridyl in pyridine according to equation (4). The iron compound 2c reacts only in THF with 2 moles of 2,2-bipyridyl according to equation (5) to give the sulfinato complex 12O, which is in pyridine irreversibly converted into the S-isomer 12S according to equation (6). 12S can also be isolated from 2c and 2 moles of 2,2′-bipyridyl in pyridine according to equation (7). The newly prepared compounds are characterized on the basis of their i.r. and their electronic spectra as well as by magnetochemical investigations.
    Notes: Bei der Umsetzung der Komplexe (p-R C6H4SO2)2M(OH2)2 1a,b und 2a-4a mit Pyridin erhält man gemäß Gl. (1) die bisher unbekannten, pseudooktaedrisch konfigurierten Bis(organosulfinato-O,O')-dipyridin-Verbindungen von Mangan(II), Eisen(II), Kobalt(II) und Nickel(II) 5a, b und 6a-8a. Bindungs- oder Stereoisomere lassen sich nicht nachweisen.  -  Während (p-CH3C6H4SO2)2Cr(OH2)2 (9) in Wasser gemäß Gl. (2) 2 mol 2,2′-Bipyridyl unter Bildung des Sulfinato-O-Komplexes 10 aufnimmt, addiert die entsprechende Mangen-Verbindung 1a gemäß Gl. (3) nur 1 mol 2,2′-Bipyridyl, wobei der Sulfinato-Komplex 11O,O' entsteht. Andere Lösungsmittel führen bei 9 zu keinen Bindungsisomeren. Dagegen erhält man aus 1a und 2,2′-Bipyridyl in Pyridin entsprechend Gl. (4) den zu 11O,O' bindungs- und strukturisomeren Sulfinato-Komplex 11S. Die Eisen-Verbindung 2c setzt sich nur in THF mit 2 mol 2,2′-Bipyridyl gemäß Gl. (5) zum Sulfinato-O-Komplex 12O um, welcher in Pyridin irreversibel entsprechend Gl. (6) in das S-Isomere 12S übergeht 12S läßt sich gemäß Gl. (7) auch aus 2c und 2 mol 2,2′-Bipyridyl in Pyridin isolieren., Die neu dargestellten Verbindungen werden anhand ihrer IR- und Elektronenspektren, sowie durch magnetochemische Untersuchungen charakterisiert.
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  • 3
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Directed Synthesis of Sulfinato-O- and -S-Complexes of some Transition Metals, III. Investigations on the Metal-ligand Bond in Tris- and Tetrakis(sulfinato) Complexes of Transition MetalsThe tris- and tetrakis(sulfinato) complexes 1a-c to 3a-c and 6 of group V, VI, VIII and IV transition metals are obtained by the reaction of sodium salts of the aliphatic and aromatic sulfinic acids with soluble chlorides of the corresponding transition metals in water or ethanol at temperatures between 20 and 100°C according to equations (1) and (3). Depending on the solvent, (π-C5H5)2ZrCl2 (4) reacts with [CH3SO2]Na to form either 5 or 6. The structures of the newly prepared compounds, all sulfinato-O,O′ complexes, are discussed on the basis of i.r. and magnetochemical investigations.
    Notes: Die Tris- und Tetrakis(sulfinato)-Komplexe 1a-c bis 3a-c und 6 von Übergangsmetallen der 5., 6., 8. und 4. Nebengruppe entstehen bei der Umsetzung von Natriumsalzen der aliphatischen und aromatischen Sulfinsäuren mit löslichen Chloriden der entsprechenden Übergangsmetalle in Wasser oder Äthanol bei Temperaturen zwischen 20 und 100° gemäß Gl. (1) und (3). In Abhängigkeit vom Lösungsmittel bildet (π-C5H5)2ZrCl2 (4) mit [CH3SO2]Na entweder 5 oder 6. Die Strukturen der neu dargestellten Verbindungen, bei denen es sich durchwegs um Sulfinato-O.O′-Komplexe handelt, werden mit Hilfe von IR- und magneto-chemischen Untersuchungen diskutiert.
    Additional Material: 2 Ill.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 106 (1973), S. 404-410 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Directed Synthesis of Sulfinato-O and -S Complexes of some Transition Metals, VII1) Linkage Isomerism in Sulfinato Complexes of Copper(II)Fourfold configurated bis(p-toluenesulfinato-O)-2,2′-bipyridylcopper(II) (2) and pseudooctahedrally bis(p-toluenesulfinato-O)bis(2,2′ bipyridyl)copper(II) (3O) are obtained by reaction of bis(p-toluenesulfinato-O,O′)diaquacopper(II) (1) with 2,2′-bipyridyl in acetone and in water according to equations (2) and (3), respectively. 3O can also be prepared from 2 and 2,2′-bipyridyl in water according to equation (6); in acetone or THF equation (6) is reversible. On the contrary the addition of 2,2′-bipyridyl to 1 in pyridine forms bis(p-toluenesulfinato-S)bis(2,2′-bipyridyl)copper(II) (3S) according to equation (4), being linkage isomerie with 3O. Finally in pyridine at 115° the O-isomer 3O is converted irreversibly into the S-isomer 3S. The newly prepared compounds are characterized on the basis of their i.r. and electronic spectra as well as by magnetochemical investigations.
    Notes: Durch Einwirkung von 2,2′-Bipyridyl auf Bis(p-toluolsulfinato-O,O′)-diaquo-kupfer (II) (1) erhält man gemäß Gl. (2) in Aceton das vierfach konfigurierte Bis(p-toluolsulfinato-O)-2,2′- bipyridyl-kupfer(II) (2) und gemäß Gl. (3) in Wasser das pseudooktaedrische Bis(p-toluolsulfinato-O)-bis(2,2′-bipyridyl)-kupfer(II) (3O). 3O bildet sich auch aus 2 und 2,2′-Bipyridyl in Wasser gemäß Gl. (6); in Acetone oder THF verläuft Gl. (6) reversibel. Bei der Addition von 2,2′-Bipyridyl an 1 in Pyridin entsteht dagegen das zu 3O bindungsisomere Bis(p-toluolsulfinato-S)-bis(2,2′-bipyridyl)-kupfer(II) (3S) gemäß Gl. (4). Das O-isomere 3 O kann schließlich in Pyridin bei 115° gemäß Gl. (5) irreversibel in das S-Isomere 3S übergeführt werden. Die neudargestellten Verbindungen werden an Hand ihrer IR- und Elektronenspektren sowie durch magnetochemische Untersuchungen charakterisiert.
    Additional Material: 2 Tab.
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 83 (1971), S. 213-213 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 10 (1971), S. 193-194 
    ISSN: 0570-0833
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
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