TY - JOUR
T1 - Synthesis and characterisation of N-coordinated pentafluorophenyl gold(i) thiazole-derived complexes and an unusual self-assembly to form a tetrameric gold(i) complex
AU - Cronje, Stephanie
AU - Raubenheimer, Helgard G.
AU - Spies, Hendrik S.C.
AU - Esterhuysen, Catharine
AU - Schmidbaur, Hubert
AU - Schier, Annette
AU - Kruger, Gert J.
PY - 2003/6/20
Y1 - 2003/6/20
N2 - Treatment of [Au(C6 F5 )(SC4 H8 )] (1) (SC4 H8 = tetrahydrothiophene or tht) with H[upper bond 1 start]C═NC(CH3 )═C(H)S[upper bond 1 end], CH3 S[upper bond 1 start]C═NC(CH3 )═C(H)S[upper bond 1 end], (I) or piperidine yields the neutral mononuclear imine complexes [Au(C6 F5 )([upper bond 1 start]N═C(H)SC(H)═C[upper bond 1 end]CH3 )] (2) and [Au(C6 F5 )([upper bond 1 start]N═C(SCH3 )SC(H)═C[upper bond 1 end]CH3 )] (3), or the amine complex [Au(C6 F5 )([upper bond 1 start]N(H)CH2 (CH2 )3 C[upper bond 1 end]H2 )] (4). The reaction of 1 with S═[upper bond 1 start]CN(H)C(CH3 )═C(H)S[upper bond 1 end], (II) affords the thione complex [Au(C6 F5 )(S═[upper bond 1 start]CN(H)C(CH3 )═C(H)S[upper bond 1 end])] (5), which, in CH2 Cl2 via spontaneous intermolecular deprotonation of the thione ligand, self-assembles to an unique tetramer of Au(i), [Au(S═[upper bond 1 start]CNC(CH3 )═C(H)S[upper bond 1 end])]4 (6) containing a folded rectangle of Au-atoms with aurophlilic interactions [av. Au⋯Au distance, 3.02(4) Å and av. Au–Au–Au angle, 87(2)°]. N-coordination of the imine complexes has been confirmed by15 N NMR and the crystal structure determination of 2 which exhibits the expected linear N-coordination and intermolecular Au⋯Au [3.345(1) Å] contacts. The crystal structure of 5 shows thione S-coordination of II to the central Au atom.
AB - Treatment of [Au(C6 F5 )(SC4 H8 )] (1) (SC4 H8 = tetrahydrothiophene or tht) with H[upper bond 1 start]C═NC(CH3 )═C(H)S[upper bond 1 end], CH3 S[upper bond 1 start]C═NC(CH3 )═C(H)S[upper bond 1 end], (I) or piperidine yields the neutral mononuclear imine complexes [Au(C6 F5 )([upper bond 1 start]N═C(H)SC(H)═C[upper bond 1 end]CH3 )] (2) and [Au(C6 F5 )([upper bond 1 start]N═C(SCH3 )SC(H)═C[upper bond 1 end]CH3 )] (3), or the amine complex [Au(C6 F5 )([upper bond 1 start]N(H)CH2 (CH2 )3 C[upper bond 1 end]H2 )] (4). The reaction of 1 with S═[upper bond 1 start]CN(H)C(CH3 )═C(H)S[upper bond 1 end], (II) affords the thione complex [Au(C6 F5 )(S═[upper bond 1 start]CN(H)C(CH3 )═C(H)S[upper bond 1 end])] (5), which, in CH2 Cl2 via spontaneous intermolecular deprotonation of the thione ligand, self-assembles to an unique tetramer of Au(i), [Au(S═[upper bond 1 start]CNC(CH3 )═C(H)S[upper bond 1 end])]4 (6) containing a folded rectangle of Au-atoms with aurophlilic interactions [av. Au⋯Au distance, 3.02(4) Å and av. Au–Au–Au angle, 87(2)°]. N-coordination of the imine complexes has been confirmed by15 N NMR and the crystal structure determination of 2 which exhibits the expected linear N-coordination and intermolecular Au⋯Au [3.345(1) Å] contacts. The crystal structure of 5 shows thione S-coordination of II to the central Au atom.
UR - https://www.scopus.com/pages/publications/85034324374
U2 - 10.1039/b303625a
DO - 10.1039/b303625a
M3 - Article
AN - SCOPUS:85034324374
SN - 1477-9226
VL - 3
SP - 2859
EP - 2866
JO - Journal of the Chemical Society. Dalton Transactions
JF - Journal of the Chemical Society. Dalton Transactions
IS - 14
ER -