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  • 1
    Electronic Resource
    Electronic Resource
    Synthesis and Structure of Trinuclear Boryloxycarbyne Complexes (1999)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 1999 (1999), S. 2277-2281 
    Details
    ISSN: 1434-1948
    Keywords: Boron ; Iron ; Nickel ; Carbyne complexes ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The μ3-boryloxycarbyne complexes [{Fe(CO)3}3{μ3-COBCl{NtBu(SiMe3)}}2] (1) and [{(η5-C5H5)Ni}3{μ3-COBX(NR2)}μ3-CO] (2a: NR2 = NtBu(SiMe3), × = Cl; 2b: NR2 = N(SiMe3)2, × = Cl; 2c: NR2 = NMe2, × = BNMe2Cl) were obtained by reaction of the anionic complexes K2[{Fe(CO)3}3{μ3-CO}2] and K[{(η5-C5H5)Ni(CO)] with the corresponding chloroboranes Cl2BNR2 {NR2 = NtBu(SiMe3), N(SiMe3)2}, or 1,2-dichlorodiboranes(4) B2(NMe2)2Cl2, respectively. The products are formed by a nucleophilic attack of the CO oxygen atom at the boron centres with subsequent salt elimination. All compounds were characterized by IR and multinuclear NMR spectroscopy, and the structures of 1 and 2c in the solid state were determined by single-crystal X-ray diffraction studies.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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    Paper (German National Licenses)
  • 2
    Electronic Resource
    Electronic Resource
    Synthesis and Structure of the First η1-Borazine Complexes (1998)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 1998 (1998), S. 291-293 
    Details
    ISSN: 1434-1948
    Keywords: Boron ; Iron ; Boryl complexes ; η1-Coordinated borazine ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A series of η1-borazine complexes were obtained by the reaction of trichloroborazine with Na[(η5-C5R5)Fe(CO)2]. The compounds [{(C5R5)(CO)2Fe}nCl3-nB3N3H3] (1a, n = 1, R = Me; 1b, n = 2, C5R5 = C5H4Me; 1c, n = 3, R = H) have one to three iron-boron σ bonds and Fe-B π-interactions can be ruled out from the spectroscopic and structural results. All new borazine complexes were isolated as orange crystalline solids and characterized by multinuclear NMR methods and IR spectroscopy. The structure of 1b in the crystalline state was also determined by a single-crystal X-ray study.
    Type of Medium: Electronic Resource
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    Paper (German National Licenses)
  • 3
    Electronic Resource
    Electronic Resource
    New Borylene Complexes of the Type [μ-BX{.5-C5H4Me)MN(CO)2}2]: Substitution Reactions at the Metal-Coordinated Borylene Moiety (1997)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 130 (1997), S. 1295-1298 
    Details
    ISSN: 0009-2940
    Keywords: Boron ; Manganese ; Borylene complexes ; Reactions at metal-coordinated boron ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The reaction of the air- and water-stable borylene complex [μ-BNMe2{.5-C5H4Me)Mn(CO)2}2] (1a) with a solution of Hcl in Et2O affords the correspondin chloroborylene complex [μ-Chloroborylenebis{dicarbonyl(.5-methylcyclopentadienyl)manganese}(Mn-Mn)] (2). This compound easily undergoes further substitution reactions with protic reagents such as primary amines, alcohols and water at the metal coordinated borylene moiety with elimination of HCl, giving new products of the type [μ-BX{.4-C5H4ME)Mn(CO)2}2] (3a, ab: X=NHtBu, NHPh; 4a, b: × = OMe, OEt; 5: X= Oh}. All borylene complexes were isolated as crystalline solids in good yield and characterized by multinuclear NMR methods and IR spectroscopy in solution. In addition, the structure of 4b in the crystalline state was determined by a single-crystal X-ray study.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19971300918
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