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Synthesis and Structure of (N,)C,N-chelated Organoantimony(III) and Bismuth(III) Cations and Isolation of Their Adducts with Ag[CB11H12]
Year: 2016
Type of publication: článek v odborném periodiku
Name of source: Zeitschrift für anorganische und allgemeine Chemie
Publisher name: Wiley-VCH
Place: Weinheim
Page from-to: 1212-1217
Titles:
Language Name Abstract Keywords
cze Syntéza antimonitých a bismutitých kationtů. Isolace jejich aduktů s Ag[CB11H12] Byla studována reakce N,C,N-chelatovaných antimonitých a bismutitých chloridů [C6H3-2,6-(CH=NR)(2)]MCl2 [R = tBu a M = Sb (1) a Bi (2); R = Dmp a M = Sb (3) a Bi (4)] (Dmp = 2,6-Me2C6H3) s Ag[CB11H12]. antimon; bismut; kationty
eng Synthesis and Structure of (N,)C,N-chelated Organoantimony(III) and Bismuth(III) Cations and Isolation of Their Adducts with Ag[CB11H12] The treatment of N,C,N-chelated antimony(III) and bismuth(III) chlorides [C6H3-2,6-(CH=NR)(2)]MCl2 [R = tBu and M = Sb (1) or Bi (2); R = Dmp and M = Sb (3) or Bi (4)] (Dmp = 2,6-Me2C6H3) with one molar equivalent of Ag[CB11H12] led to a smooth formation of corresponding ionic pairs {[C6H3-2,6-(CH= NR)(2)]-MCl}(+)[CB11H12](-)[R = tBu and M = Sb (7) or Bi (8), R = Dmp and M = Sb (9) or Bi (10)]. Similarly, the reaction of C, N-chelated analogues [C6H2-2-(CH= NDip)-4,6-(tBu)(2)]MCl2 [M = Sb (5) or Bi (6), Dip = 2',6'-iPr(2)C(6)H(3)] gave compounds {[C6H2-2-(CH= NDip)-4,6-(tBu)(2)]MCl}(+)[CB11H12]-[M = Sb (11) or Bi (12)]. All compounds 7-12 were characterized with H-1, B-11 and C-13{H-1} NMR spectroscopy, ESI-mass spectrometry, IR spectroscopy, and molecular structures of 7-9 and 12 were determined by the help of single-crystal X-ray diffraction analysis. In contrast, all attempts to cleave also the second M-Cl bond in 7-12 using another molar equivalent Ag[CB11H12] remained unsuccessful. Nevertheless, the reaction between 7 (or 8) and Ag[CB11H12] produced unprecedented adducts of both reagents namely {[C6H3-2,6-(CH= NtBu)(2)] SbCl}(2)(2+)[Ag-2(CB11H12)(4)](2-) (13) and {[C6H3-2,6-(CH= NtBu)(2)] BiCl}(+)[Ag(CB11H12)(2)](-) (14) in a reproducible manner. The molecular structures of these sparingly soluble compounds were determined by single-crystal X-ray diffraction analysis. Antimony; Bismuth; Cations; Carboranes; Agostic interactions

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