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- Title
Visible and Near-IR Emissions from k<sup>2</sup> N- and k<sup>3</sup> N-Terpyridine Rhenium(I) Assemblies Obtained by an [ n×1] Head-to-Tail Bonding Strategy.
- Authors
Laramée ‐ Milette, Baptiste; Zaccheroni, Nelsi; Palomba, Francesco; Hanan, Garry S.
- Abstract
An [ n×1] head-to-tail bonding strategy has been used for the synthesis of ReI metallacycles. From a k3 N-dicarbonyl precursor, a single discrete [4×1] square assembly was isolated and characterized, whereas a k2 N-tricarbonyl precursor led to two major species, a square and a [3×1] triangular assembly. Solid-state X-ray diffraction study has confirmed the high angular distortion (71° to 96°) of the k2 N precursors. The electrochemical reversibility of the triangular ( 5) and square ( 6, 7) assemblies is increased with respect to that of their precursors. Photophysical investigation has confirmed pronounced red-shifts in the emissions of the k3 N-dicarbonyl species 4 (935 nm) and 7 (980 nm), as confirmed by density functional theory (DFT) and time-dependent DFT (TD-DFT) calculations.
- Subjects
RHENIUM compounds synthesis; METALLACYCLES; CHEMICAL precursors; DENSITY functional theory; LIGANDS (Chemistry); MOLECULAR self-assembly
- Publication
Chemistry - A European Journal, 2017, Vol 23, Issue 26, p6370
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.201700077