Square-planar mixed ligand nickel dithiolenes as second order non-linear chromophores: synthesis and characterisation of [Ni(Me2pipdt)(dddt)]

DEPLANO, PAOLA;ARTIZZU, FLAVIA;MERCURI, MARIA LAURA;PILIA, LUCA;SERPE, ANGELA;
2009-01-01

Abstract

The novel [Ni(Me(2)pipdt)(dddt)] complex based on the Me(2)pipdt (1,4-dimethylpiperazine-3,2-dithione) and dddt (5,6-dihydro-1,4-dithine-2,3-dithiolate) ligands has been synthesised and characterised. Structural data, vibrational marker, solvatochromic behaviour of the typical absorption in the near infrared region, and approximate theoretical calculations suggest that an unbalanced electron distribution at the dithiolene core occurs in the ground and excited states. In particular, the dddt ligand gives a prevailing contribution to the HOMO, and Me(2)pipdt to the LUMO. The charge-transfer character of the HOMO-LUMO transition makes this complex a potential second-order non-linear optic chromophore.
2009
Inglese
MONATSHEFTE FÜR CHEMIE
140
775
781
7
WOS:000266926500006
2-s2.0-67651221811
Esperti anonimi
internazionale
scientifica
Transition metals compounds, Charge transfer, X-ray structure determination, Non-linear optical properties, Ni-dithiolenes
special issue of "Monatshefte - Chemistry Monthly" entitled " From Molecules to Molecular Devices
sì
Deplano, Paola; L., Marchiò; Artizzu, Flavia; Mercuri, MARIA LAURA; Pilia, Luca; G., Pintus; Serpe, Angela; E. B., Yagubskii
1.1 Articolo in rivista
info:eu-repo/semantics/article
1 Contributo su Rivista::1.1 Articolo in rivista
262
8
reserved
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