Luminescent heteropolynuelear complexes of 3,5-dimethylpyrazolate [pt 2Au2M2(Me2pz)8] (M = Ag, Cu) Showing the synergistic effect of three transition elements in the excited state

Chemistry - A European Journal

Volumn 15, Issue 17, 2009, Pages 4238-4242

  Umakoshi, Keisuke ^a   Saito, Keizo ^a   Arikawa, Yasuhiro ^a   Onishi, Masayoshi ^a   Ishizaka, Shoji ^b   Kitamura, Noboru ^b   Nakao, Yoshihide ^c   Sakaki, Shigeyoshi ^c  

^a NAGASAKI UNIVERSITY   (Japan)

^b HOKKAIDO UNIVERSITY   (Japan)

^c KYOTO UNIVERSITY   (Japan)

Author keywords

Coinage metals; Luminescence; Metal melal inlcraclions; N ligands; Plalinum

Indexed keywords

AG ATOMS; COINAGE METALS; HETEROPOLYNUCLEAR COMPLEXES; METAL ATOMS; N LIGANDS; NMR SPECTRUM; PLALINUM; SOLID-STATE STRUCTURES; SYNERGETIC EFFECTS; SYNERGISTIC EFFECTS; TRANSITION ELEMENTS; X-RAY CRYSTAL-STRUCTURE ANALYSIS;

ATOMIC SPECTROSCOPY; ATOMS; COINAGE; LIGANDS; LUMINESCENCE; MINTS; NUCLEAR MAGNETIC RESONANCE; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; PLATINUM COMPOUNDS; PROTONS; SILVER; STRUCTURAL ANALYSIS; TRANSITION METALS;

CRYSTAL ATOMIC STRUCTURE;

EID: 65449121507     PISSN: 09476539     EISSN: 15213765     Source Type: Journal    
DOI: 10.1002/chem.200900290     Document Type: Article

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13. CCDC 701750 (3), 701751 (4), 701752 (5) contain the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data-request/cil.
14. max= 544 nm,Φ=0.08) in the solid state.
15. The shortening of Au · · ·Cu and Cu · · · Cu distances and concomitant elongation of Pt · · · Pt distance are expected in the excited states of 4, while the elongation of Pt-N distances in one of the two Pt atoms in 5 is expected (see Table S6 and Figure S15 in the Supporting Information).
16. 2Cu), the 259 MO for σ (Pt-Pt)/Cu(d), the 254 MO for σ (Pt-Pt)/Au(d), and the 252 MO for σ* (Pt-Pt). Note that the 261 MO consists of the bonding combination of 6p of Pt, 6p of Au and 4p of Cu atoms.
17. Calculated emission energies: 4, 1.75 e V (708 nm); 5, 2.26 eV (549 nm); structural relaxation was considered in the calculation.