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4‐[( E )‐2‐Phenylethenyl]‐2,6‐bis(2‐pyrazinyl)pyridine and its Dichlorocadmium(II) Complex: Synthesis, Luminescence, and Supramolecular Network
Author(s) -
Dai JingWei,
Li ZhaoYang,
Chen YingLin,
Cai Bin,
Wu JianZhong,
Yu Ying
Publication year - 2010
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201000105
Subject(s) - luminescence , pyridine , hydrogen bond , supramolecular chemistry , ligand (biochemistry) , crystal structure , molecule , chemistry , crystallography , absorption (acoustics) , crystal (programming language) , stereochemistry , materials science , medicinal chemistry , receptor , optoelectronics , organic chemistry , biochemistry , computer science , programming language , composite material
A novel dipyrazinylpyridine ligand, 4‐[( E )‐2‐phenylethenyl]‐2,6‐bis(2‐pyrazinyl)pyridine (L) and its cadmium complex [CdLCl 2 ] were synthesized and characterized. Structural analysis revealed that there are extensive C–H ··· N and C–H ··· π unconventional hydrogen bonds and π–π interactions in the crystal structure of L, whereas in [CdLCl 2 ] rich C–H ··· Cl hydrogen bonding was the exclusive force in assembling the molecules and led to formation of a new 3,3,4,6‐nodal topological network. Spectral analysis suggested that the absorption and luminescence behavior of [CdLCl 2 ] is ascribed to L based intraligand transitions. Coordination to Cd II did not change the electronic structure of L but significantly enhanced the π* → n emission.