Aggregation of Au(i)-complexes on amorphous substrates governed by aurophilicity

Gründlinger, PetraJohannes Kepler Univ Linz, Inst Expt Phys, Surface Sci Div, Altenberger Str 69, A-4040 Linz, Austria (författare)

In single crystals of 2-naphthylisonitrile-gold(i)-halide (halide = Cl, Br, I) complexes, AuMIDLINE HORIZONTAL ELLIPSISAu distances are found to be significantly shorter than twice the van der Waals radius, indicating attractive interactions between gold atoms in adjacent molecules. In the particular case of the studied 2-naphthylisonitrile-gold(i) complexes, homodimers are the common structural motifs, in which the linearly coordinated gold exhibits a crossed swords arrangement with the Au atoms of two molecules being at the intersection point. The crossed swords motif is preserved upon physical vapour deposition of both the chlorine and bromine derivatives on amorphous substrates like glass and glassy carbon. The determined activation energies of desorption for the chlorine (0.9 eV) and the bromine (1.2 eV) derivative are comparable to that of unsubstituted naphthalene. Using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and ion scattering (RBS), we confirmed the chemical integrity of the molecules in thin films and revealed the orientation of the crossed swords dimers with respect to the substrate surface.

Györök, MichaelJohannes Kepler Univ Linz, Inst Expt Phys, Surface Sci Div, Altenberger Str 69, A-4040 Linz, Austria (författare)
Wolfmayr, SebastianPhillipps Univ Marburg, Phys Dept, Mol Solids Grp, Renthof 7, D-35032 Marburg, Germany (författare)
Breuer, TobiasPhillipps Univ Marburg, Phys Dept, Mol Solids Grp, Renthof 7, D-35032 Marburg, Germany (författare)
Primetzhofer, DanielUppsala universitet,Tillämpad kärnfysik(Swepub:uu)danpr521 (författare)
Bruckner, BarbaraUppsala universitet,Tillämpad kärnfysik(Swepub:uu)barbr469 (författare)
Monkowius, UweJohannes Kepler Univ Linz, Sch Educ, Altenberger Str 69, A-4040 Linz, Austria (författare)
Wagner, ThorstenJohannes Kepler Univ Linz, Inst Expt Phys, Surface Sci Div, Altenberger Str 69, A-4040 Linz, Austria (författare)
Johannes Kepler Univ Linz, Inst Expt Phys, Surface Sci Div, Altenberger Str 69, A-4040 Linz, AustriaPhillipps Univ Marburg, Phys Dept, Mol Solids Grp, Renthof 7, D-35032 Marburg, Germany (creator_code:org_t)

Ingår i:Dalton Transactions: ROYAL SOC CHEMISTRY48:39, s. 14712-147231477-92261477-9234

Av författaren/redakt...: Gründlinger, Pet ...; Györök, Michael; Wolfmayr, Sebast ...; Breuer, Tobias; Primetzhofer, Da ...; Bruckner, Barbar ...; visa fler...; Monkowius, Uwe; Wagner, Thorsten; visa färre...

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