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Regioselective Monoiodination of Carba‐ closo ‐dodecaborates: M[7‐I‐12‐X‐ closo ‐CB 11 H 10 ] (M = Cs + , [Et 4 N] + ; X = F, Cl, Br, OH)
Author(s) -
Finze Maik
Publication year - 2009
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200801046
Subject(s) - chemistry , halogen , crystallography , substituent , boron , nuclear magnetic resonance spectroscopy , regioselectivity , carborane , x ray crystallography , crystal structure , mass spectrometry , stereochemistry , diffraction , organic chemistry , alkyl , physics , optics , catalysis , chromatography
Selective monoiodination of a series of carba‐ closo ‐dodecaborates with a halogen atom or a hydroxy substituent bonded to the antipodal boron atom resulted in salts of the novel anions [7‐I‐12‐X‐ closo ‐CB 11 H 10 ] – [X = F ( 1 ), Cl ( 2 ), Br ( 3 ), OH ( 4 )]. These anions were isolated as [Et 4 N] + salts and converted into the Cs + salts. The novel compounds were studied by multi NMR spectroscopy, mass spectrometry (MALDI), and elemental analysis. The solid‐state structure of Cs[7‐I‐12‐HO‐ closo ‐CB 11 H 10 ] · (CH 3 ) 2 CO was determined by single‐crystal X‐ray diffraction. The assignment of the NMR spectroscopic data and the discussion of structural properties was supported by the results of the DFT calculations. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)