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Photoactive building blocks for coordination complexes: Gilding 2,2′:6′,2″-terpyridine

Constable, Edwin C. and Housecroft, Catherine E. and Kocik, Marzena K. and Zampese, Jennifer A.. (2011) Photoactive building blocks for coordination complexes: Gilding 2,2′:6′,2″-terpyridine. Polyhedron, 30 (16). pp. 2704-2710.

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Official URL: http://edoc.unibas.ch/dok/A5848950

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Abstract

The alkyne unit of 4`-ethynyl-2,2`:6`,2 ``-terpyridine has been functionalized with Ph(3)PAu, (2-tolyl)(3)PAu or Au(dppe)Au units to produce compounds 1-3, respectively. These derivatives have been characterized by electrospray mass spectrometry, solution (1)H and (13)C NMR, UV-Vis and emission spectroscopies, and single crystal X-ray diffraction. In the solid state, molecules of 1 or 2 pack with separated domains of tpy and R(3)PAu units; the tpy units in 2 (but not 1) exhibit face-to-face pi-stacking. Compound 3 crystallizes as 2(3)-CHCl(3), and the folded conformation of the dppe backbone results in a short (2.9470(8) angstrom) aurophilic interaction. Folded molecule 3 captures CHCl(3), preventing intramolecular face-to-face pi-interactions between the tpy units. In CH(2)Cl(2) solution, 1-3 are emissive when excited between 230 and 300 nm, but over minutes when lambda(ex) = 230 nm, the emission bands decay as the compounds photodegrade.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Anorganische Chemie (Constable)
05 Faculty of Science > Departement Chemie > Chemie > Anorganische Chemie (Housecroft)
UniBasel Contributors:Constable, Edwin Charles and Housecroft, Catherine Elizabeth
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Elsevier
ISSN:0277-5387
e-ISSN:1873-3719
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
Identification Number:
Last Modified:08 May 2017 07:15
Deposited On:14 Sep 2012 07:01

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