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Rohde, Jan-Uwe
Transition Metal Chemistry
Research Interests
  • Inorganic chemistry, coordination chemistry, organometallic chemistry, chemical synthesis, catalysis, green chemistry, inorganic reaction mechanisms.

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Synthesis, Characterization, and O2 Reactivity of Iridium(I) Complexes Supported by Guanidinato Ligands

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Title
Synthesis, Characterization, and O2 Reactivity of Iridium(I) Complexes Supported by Guanidinato Ligands
Author
Rohde, Jan-UweKelley, Matthew R.Lee, Wei-Tsung
Keywords
RAY CRYSTAL-STRUCTURES; COORDINATION CHEMISTRY; OXIDATION; DINUCLEAR; TITANIUM; BEHAVIOR; OLEFIN
Issue Date
2008-12
Publisher
AMER CHEMICAL SOC
Citation
INORGANIC CHEMISTRY, v.47, no.24, pp.11461 - 11463
Abstract
Mononuclear [Ir{ArNC(NR2)NAr}(C8H12)] complexes (where R = Me or Et; Ar = Ph, 4-MeC6H4, or 2,6-Me2C6H3; and C8H12 = 1,5-cyclooctadiene) were synthesized from the neutral N,N-dialkyl-N′, N″-diarylguanidines via deprotonation and transmetalation. As confirmed by single-crystal structure determinations, the guanidinato(1-) ligands coordinate the low-valent d8 IrI center in an N,N′-chelating binding mode, and the 13C NMR chemical shifts of the alkene carbon atoms establish that these ligands function as stronger donors than related monoanionic, bidentate nitrogen-based ligands. In the reactions of the complexes with O2, the observed reactivity trends correlate with the electronic and steric influences of the substituents of the guanidinato ligands.
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DOI
10.1021/ic801867r
ISSN
0020-1669
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PHY_Journal Papers
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